BORROMEI, A.M., QUATTROCCHIO, M. Late and Postglacial Paleoenvironments of Tierra del Fuego: terrestrial and marine palynological evidence. In: J. Rabassa (ed.)

BORROMEI, A.M.; QUATTROCCHIO; M.E.

Late Cenozoic of Patagonia and Tierra del Fuego

Elsevier

Lugar: Holanda; Año: 2008;

The vegetation and paleoclimate of southernmost part of South America, Tierra del Fuego, during Late Pleistocene - Holocene times and following the wastage of ice-age glaciers, were subjects of intensive study mainly by Heusser (1987, 1989a, 1989b, 1989c, 1990, 1993a, 1993b, 1994a, 1994b, 1995a, 1997, 1998, 2003), Heusser and Rabassa (1987, 1995), Markgraf (1980a, 1980b, 1983, 1991a, 1991b, 1993a, 1993b), Markgraf et al. (1992, 2002), Markgraf and Anderson (1994), Markgraf and Kenny (1997), Borromei (1995), Quattrocchio and Borromei (1998), Borromei and Quattrocchio (2001), Pendall et al. (2001), Grill et al. (2002), Mauquoy et al. (2004), following the pioneering work earlier in this century of Väinö Auer (1933, 1956, 1958, 1970). Data from the southernmost part of Chile (south of 53º S), by comparison, are relatively limited with few records, mainly along the Estrecho de Magallanes and the Bahía Inútil depressions (Heusser, 1987, 1995b, 2003; Heusser et al., 2000), on the northern side of the Fuegian Andes axis (the Onamonte site) (Heusser, 1993a, 2003) and Caleta Róbalo, at Puerto Williams, Isla Navarino (Heusser, 1987, 1989a). This contribution primarily includes the published data available to the authors on the palynofloristic evolution of the Late Cenozoic of southern Tierra del Fuego (Beagle Channel area). Paleovegetational communities and paleoenvironments of the Late Pleistocene and Holocene in southern Tierra del Fuego are interpreted from pollen assemblages, microplankton and palynofacies in radiocarbon-dated peat bogs, glaciolacustrine sediments and marine deposits.