Holocene sea level changes in the tierra del fuego region

Resumo

Available sea level data from the Tierra del Fuego region cannot be combined Into a meaningful sea level graph as recently proposed (PORTER et al., 1984 and RABASSA et al., 1986) because these records are dominated by sites of local seismotectonic uplift; i.e., the exceptions, not the rule. The general sea level tendency (i.e., the rule), gives a sea level rise from 9,000 up to about 4,000 BP when the peak-level was reached. This Holocene maximum level was, however, at or Just above the present sea level; ranging from zero via 0.5-1.0 m up to 1-2 m above the present sea level. A preliminary regional eustatic curve is proposed. Presently available sea level data do not record any Holocene glacial Isostatic effects.