Mid- to Late Holocene sealevel changes at Abrolhos Archipelago and Bank, southwestern Atlantic, Brazil

被引：3

作者：

Angulo, Rodolfo Jose ^{[1
]}

de Souza, Maria Cristina ^{[1
]}

Rosa, Maria Luiza Correa da Camara ^{[2
]}

Barboza, Eduardo G. ^{[3
,4
]}

Lessa, Guilherme Camargo ^{[5
]}

Pessenda, Luiz Carlos Ruiz ^{[6
]}

Ferreira Junior, Augusto Luiz ^{[7
]}

机构：

[1] Univ Fed Parana, Dept Geol, Lab Estudos Costeiros, Curitiba, Brazil

[2] Univ Fed Rio Grande Do Sul, Dept Geodesia, Inst Geociencias, Porto Alegre, Brazil

[3] Univ Fed Rio Grande Do Sul, Ctr Estudos Geol Costeira & Ocean, Inst Geociencias, Porto Alegre, Brazil

[4] Univ Fed Rio Grande Do Sul, Ctr Estudos Costeiros Limnol & Marinhos, Porto Alegre, Brazil

[5] Univ Fed Bahia, Dept Oceanog, Posgrad Geofis, Inst Geociencias, Salvador, Brazil

[6] Univ Sao Paulo, Ctr Energia Nucl Agr, Sao Paulo, Brazil

[7] Univ Fed Sao Carlos, Posgrad Genet Evolut & Biol Mol, UFSCAR, Sao Carlos, Brazil

来源：

MARINE GEOLOGY | 2022年 / 450卷

关键词：

Editor; Shu Gao; Sea-level indicators; Sea-level proxies; Holocene sea-level; Hydroisostasy; SEA-LEVEL CHANGES; RIO-DE-JANEIRO; SOUTHEASTERN BRAZIL; COASTAL EVOLUTION; EASTERN; FLUCTUATIONS; SHELF; STATE;

D O I：

10.1016/j.margeo.2022.106841

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

This study presents spatiotemporal paleo-sea-level reconstructions from Abrolhos archipelago and Abrolhos Bank, and fill in a coastline gap of 500 km where no precise paleo-sea level reconstruction exists. The reconstructions are based on sedimentary, biological and geomorphological evidences. The data indicates sealevels up to 2.9 m higher than the current one between the Mid- to Late Holocene, in agreement with the empirical sea-level envelope and with predictions of geophysical sea-level models for the Brazilian coast. The data suggests that there was little, if any, hydroisostatic compensation across 55 km of the continental shelf in the study area, between the archipelago and the mainland coast, given that similar elevations of the post-glacial sealevel maximum exist in both places.

引用

页数：14

共 68 条

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