Development of High Resolution Sea?]Level Records for the South Atlantic Ocean

JAIMIE E., LITTLE; ANDREA D., HAWKES; JEFF, DONELLY; EDUARDO, GOMEZ; LYDIA CALVO MARCILESE

Vancouver

Simposio; REUNIÓN DE LA GEOLOGICAL SOCIETY OF AMERICA; 2014

GSA

The necessity for high resolution sea?]level reconstructions has increased with the realization that the rate of sea?]level rise is accelerating. Presently, uncertainty concerning the input and influence of glaciers and ice sheets causes these changes and future projections in sea?]level to be highly debatable. In order to create more precise future projections regarding sea level, it is vital to understand the spatial and temporal characteristics of past sea?]level changes and their driving mechanisms. Therefore, precise paleo sea?]level records are a necessary geologic benchmark by which to gauge future change. Due, in part, to isostatic deformation and gravitational and rotational changes driven by the exchange of mass between oceans and ice sheets, sea?]level changes are not globally uniform and hence regional?]to?]local specific reconstructions are necessary. Such records already exist for the Northern Hemisphere, most abundantly distributed along the landmasses bordering the North Atlantic Ocean, but are distinctly lacking or at inadequate resolution in the Southern Hemisphere, in particular along the South Atlantic Ocean. Here we establish whether the relationship between modern foraminifera and the tidal regime which is used to predict the elevation of fossil foraminifera from cores, a tool often used in the Northern Hemisphere, is suitable for reconstructing past sea level at a test site in Central Argentina.?]level reconstructions has increased with the realization that the rate of sea?]level rise is accelerating. Presently, uncertainty concerning the input and influence of glaciers and ice sheets causes these changes and future projections in sea?]level to be highly debatable. In order to create more precise future projections regarding sea level, it is vital to understand the spatial and temporal characteristics of past sea?]level changes and their driving mechanisms. Therefore, precise paleo sea?]level records are a necessary geologic benchmark by which to gauge future change. Due, in part, to isostatic deformation and gravitational and rotational changes driven by the exchange of mass between oceans and ice sheets, sea?]level changes are not globally uniform and hence regional?]to?]local specific reconstructions are necessary. Such records already exist for the Northern Hemisphere, most abundantly distributed along the landmasses bordering the North Atlantic Ocean, but are distinctly lacking or at inadequate resolution in the Southern Hemisphere, in particular along the South Atlantic Ocean. Here we establish whether the relationship between modern foraminifera and the tidal regime which is used to predict the elevation of fossil foraminifera from cores, a tool often used in the Northern Hemisphere, is suitable for reconstructing past sea level at a test site in Central Argentina.?]level rise is accelerating. Presently, uncertainty concerning the input and influence of glaciers and ice sheets causes these changes and future projections in sea?]level to be highly debatable. In order to create more precise future projections regarding sea level, it is vital to understand the spatial and temporal characteristics of past sea?]level changes and their driving mechanisms. Therefore, precise paleo sea?]level records are a necessary geologic benchmark by which to gauge future change. Due, in part, to isostatic deformation and gravitational and rotational changes driven by the exchange of mass between oceans and ice sheets, sea?]level changes are not globally uniform and hence regional?]to?]local specific reconstructions are necessary. Such records already exist for the Northern Hemisphere, most abundantly distributed along the landmasses bordering the North Atlantic Ocean, but are distinctly lacking or at inadequate resolution in the Southern Hemisphere, in particular along the South Atlantic Ocean. Here we establish whether the relationship between modern foraminifera and the tidal regime which is used to predict the elevation of fossil foraminifera from cores, a tool often used in the Northern Hemisphere, is suitable for reconstructing past sea level at a test site in Central Argentina.?]level to be highly debatable. In order to create more precise future projections regarding sea level, it is vital to understand the spatial and temporal characteristics of past sea?]level changes and their driving mechanisms. Therefore, precise paleo sea?]level records are a necessary geologic benchmark by which to gauge future change. Due, in part, to isostatic deformation and gravitational and rotational changes driven by the exchange of mass between oceans and ice sheets, sea?]level changes are not globally uniform and hence regional?]to?]local specific reconstructions are necessary. Such records already exist for the Northern Hemisphere, most abundantly distributed along the landmasses bordering the North Atlantic Ocean, but are distinctly lacking or at inadequate resolution in the Southern Hemisphere, in particular along the South Atlantic Ocean. Here we establish whether the relationship between modern foraminifera and the tidal regime which is used to predict the elevation of fossil foraminifera from cores, a tool often used in the Northern Hemisphere, is suitable for reconstructing past sea level at a test site in Central Argentina.?]level changes and their driving mechanisms. Therefore, precise paleo sea?]level records are a necessary geologic benchmark by which to gauge future change. Due, in part, to isostatic deformation and gravitational and rotational changes driven by the exchange of mass between oceans and ice sheets, sea?]level changes are not globally uniform and hence regional?]to?]local specific reconstructions are necessary. Such records already exist for the Northern Hemisphere, most abundantly distributed along the landmasses bordering the North Atlantic Ocean, but are distinctly lacking or at inadequate resolution in the Southern Hemisphere, in particular along the South Atlantic Ocean. Here we establish whether the relationship between modern foraminifera and the tidal regime which is used to predict the elevation of fossil foraminifera from cores, a tool often used in the Northern Hemisphere, is suitable for reconstructing past sea level at a test site in Central Argentina.?]level records are a necessary geologic benchmark by which to gauge future change. Due, in part, to isostatic deformation and gravitational and rotational changes driven by the exchange of mass between oceans and ice sheets, sea?]level changes are not globally uniform and hence regional?]to?]local specific reconstructions are necessary. Such records already exist for the Northern Hemisphere, most abundantly distributed along the landmasses bordering the North Atlantic Ocean, but are distinctly lacking or at inadequate resolution in the Southern Hemisphere, in particular along the South Atlantic Ocean. Here we establish whether the relationship between modern foraminifera and the tidal regime which is used to predict the elevation of fossil foraminifera from cores, a tool often used in the Northern Hemisphere, is suitable for reconstructing past sea level at a test site in Central Argentina.?]level changes are not globally uniform and hence regional?]to?]local specific reconstructions are necessary. Such records already exist for the Northern Hemisphere, most abundantly distributed along the landmasses bordering the North Atlantic Ocean, but are distinctly lacking or at inadequate resolution in the Southern Hemisphere, in particular along the South Atlantic Ocean. Here we establish whether the relationship between modern foraminifera and the tidal regime which is used to predict the elevation of fossil foraminifera from cores, a tool often used in the Northern Hemisphere, is suitable for reconstructing past sea level at a test site in Central Argentina.?]to?]local specific reconstructions are necessary. Such records already exist for the Northern Hemisphere, most abundantly distributed along the landmasses bordering the North Atlantic Ocean, but are distinctly lacking or at inadequate resolution in the Southern Hemisphere, in particular along the South Atlantic Ocean. Here we establish whether the relationship between modern foraminifera and the tidal regime which is used to predict the elevation of fossil foraminifera from cores, a tool often used in the Northern Hemisphere, is suitable for reconstructing past sea level at a test site in Central Argentina.