STRATIGRAPHIC STAGES OF BERMEJO BASIN: NEW INSIGHTS FROM SEDIMENTOLOGY AND U/PB DATING

MARDONEZ, DIEGO; MESCUA, JOSÉ; BUELOW, ELLEN; SURIANO, JULIETA; MAHONEY, BRIAN; KIMBROUGH, DAVE; ANA LOSSADA; GIAMBIAGI, LAURA

Denver, Colorado

Congreso; Geological Society of America General Meeting in Denver; 2016

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South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to unde The South Central Andes at 30°S represent a key area to unde The South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to unde The South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to undeThe South Central Andes at 30°S represent a key area to understand Andean rstand Andean rstand Andean rstand Andean rstand Andean rstand Andean rstand Andean rstand Andean rstand Andean rstand Andean rstand Andean rstand Andean rstand Andean geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of geodynamics due to its location within the flat slab segment and development of following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, following morphotectonic units from west to east: Coastal Range, Principal Cordillera, Frontal (or High) Cordillera, Rodeo Frontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, Rodeo Frontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, Rodeo Frontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, Rodeo Frontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, Rodeo Frontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, Rodeo Frontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, Rodeo Frontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, RodeoFrontal (or High) Cordillera, Rodeo-Iglesia Valley, Precordille Iglesia Valley, Precordille Iglesia Valley, Precordille Iglesia Valley, PrecordilleIglesia Valley, PrecordilleIglesia Valley, Precordille Iglesia Valley, PrecordilleIglesia Valley, Precordille Iglesia Valley, PrecordilleIglesia Valley, Precordille Iglesia Valley, Precordille Iglesia Valley, PrecordilleIglesia Valley, PrecordilleIglesia Valley, PrecordilleIglesia Valley, PrecordilleIglesia Valley, Precordille ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and ra, Bermejo foreland basin and Sierras Pampeanas. Even t Sierras Pampeanas. Even t Sierras Pampeanas. Even tSierras Pampeanas. Even t Sierras Pampeanas. Even tSierras Pampeanas. Even t Sierras Pampeanas. Even tSierras Pampeanas. Even tSierras Pampeanas. Even tSierras Pampeanas. Even tSierras Pampeanas. Even t Sierras Pampeanas. Even tSierras Pampeanas. Even tSierras Pampeanas. Even tSierras Pampeanas. Even tSierras Pampeanas. Even tSierras Pampeanas. Even tSierras Pampeanas. Even though this is a classical crossough this is a classical crossough this is a classical cross ough this is a classical crossough this is a classical crossough this is a classical crossough this is a classical cross ough this is a classical crossough this is a classical cross ough this is a classical crossough this is a classical crossough this is a classical crossough this is a classical cross ough this is a classical cross ough this is a classical cross ough this is a classical crossough this is a classical crossough this is a classical crossough this is a classical cross -section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that section, recent data show that more work is necessary more work is necessarymore work is necessarymore work is necessarymore work is necessarymore work is necessarymore work is necessary more work is necessarymore work is necessary more work is necessarymore work is necessarymore work is necessary more work is necessarymore work is necessary in order to in order toin order toin order toin order toin order toin order to in order toin order to unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and unravel its geological history. Sedimentary and geochronology data from proximal sgeochronology data from proximal s geochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal s geochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal s geochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal sgeochronology data from proximal s geochronology data from proximal sgeochronology data from proximal synorogenic deposits onorogenic deposits onorogenic deposits onorogenic deposits onorogenic deposits onorogenic deposits onorogenic deposits onorogenic deposits o norogenic deposits onorogenic deposits onorogenic deposits onorogenic deposits onorogenic deposits onorogenic deposits o norogenic deposits onorogenic deposits onorogenic deposits of Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that f Precordillera indicate that uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two U uplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two Uuplift of this unit is younger than proposed by previous works: two U-Pb maximum Pb maximum Pb maximum Pb maximum Pb maximum Pb maximum Pb maximum Pb maximum depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at depositional ages of these deposits indicate that the onset uplift Precordillera at 30°S occurred around 14 Ma. This suggests that Prec 30°S occurred around 14 Ma. This suggests that Prec 30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec 30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec 30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec 30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec 30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec 30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec30°S occurred around 14 Ma. This suggests that Prec 30°S occurred around 14 Ma. This suggests that Prec ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous ordillera uplift is nearly synchronous along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S along strike, challenging the hypothesis of a N to S progressionprogressionprogressionprogression progressionprogression of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the of uplift linked to the migration of migration of migration of migration of migration of migration of migration of migration of migration of the the the subductsubductsubductsubductsubductsubductsubducted Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of Juan Fernandez ridge. On the other hand, maximum ages of deposits previously assigned to a distal sdeposits previously assigned to a distal s deposits previously assigned to a distal sdeposits previously assigned to a distal s deposits previously assigned to a distal sdeposits previously assigned to a distal s deposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal s deposits previously assigned to a distal s deposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal s deposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal sdeposits previously assigned to a distal s deposits previously assigned to a distal sdeposits previously assigned to a distal s deposits previously assigned to a distal sdeposits previously assigned to a distal synorogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22 orogenic environment have ages older than 22orogenic environment have ages older than 22 orogenic environment have ages older than 22 orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22 orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22 orogenic environment have ages older than 22 orogenic environment have ages older than 22orogenic environment have ages older than 22 orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22 orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22 orogenic environment have ages older than 22orogenic environment have ages older than 22orogenic environment have ages older than 22 Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation Ma and high amounts of juvenile volcanic clasts. This could indicate either sedimentation in a previous foreland basin created by the pre in a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the pre in a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the pre in a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the pre in a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the pre in a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the pre in a previous foreland basin created by the prein a previous foreland basin created by the prein a previous foreland basin created by the pre-Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Miocene uplift of Frontal and Principal Cordilleras CordillerasCordillerasCordilleras CordillerasCordilleras, or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in or sedimentation in extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated extensional basins associated withwith with the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode the extensional episode recognized for the arcrecognized for the arc recognized for the arcrecognized for the arc recognized for the arcrecognized for the arcrecognized for the arcrecognized for the arcrecognized for the arcrecognized for the arcrecognized for the arcrecognized for the arcrecognized for the arcrecognized for the arcrecognized for the arcrecognized for the arc recognized for the arcrecognized for the arcrecognized for the arc and retroand retroand retroand retroand retroand retroand retroand retroand retro-arc arc regionregion regions in Oligoin Oligoin Oligoin Oligo in Oligo-Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an Miocene times, also related with an important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone. important explosive magmatism east and west of the studied zone.