Influence of the "Hypsithermal Age" and "Neoglaciation" climatic conditions on the Brazilian coast.

Meanwhile the highest relative sea-level is the present one in southeastern United States (Gulf of Mexico) or in Netherlands coast, most of the Brazilian coast exhibited Holocene sea-levels higher than the present in the past. The Brazilian curves, representing the relative sea-level changes during last 7.000 years, are outlined using sedimentological, biological and prehistorical past sea-level records. This paper shows that these relative sea-level records, during the Holocene, can be suitably used to demonstrate the influence of the worldwide known paleoclimatic events, like the “Hypsithermal Age” and “Neoglaciation” on the Brazilian coast

Relationship between shell-middens and neolithic paleoshorelines with examples from Brazil and Japan

This paper deals with general aspects of the southeastern Brazilian coast shell-middens, particularly from the Cananéia-Iguape (State of São Paulo) plain, emphasizing their usefulness for the paleoshorelines reconstruction after the mid-Holocene. Some peculiarities of the Kanto (Japan) plain shell-middens, almost contemporaneous to the Brazilians, are also presented. In both cases, for the relative paleosea-level identification, the following information must be obtained from each shell-midden: (a) the distance from the present sea or lagoonal margin; (b) the nature and age of the substrate; (c) the altitude of the substrate above high-tide level; (d) the overall dates of site occupation and abandonment; (e) the 813C(pp)g) values of the carbonates in its mollusk shell; (f) the dominante mollusk species, and (g) the size of the shell-midden