A new Holocene relative sea-level curve for Terra Nova Bay, Victoria Land, Antarctica

被引：71

作者：

Baroni, C

Hall, BL

机构：

[1] Univ Pisa, Dipartimento Sci Terra, I-56126 Pisa, Italy

[2] CNR, Ist Geosci & Georisorse, I-56100 Pisa, Italy

[3] Univ Maine, Dept Earth Sci, Orono, ME 04469 USA

[4] Univ Maine, Climate Change Inst, Orono, ME 04469 USA

来源：

JOURNAL OF QUATERNARY SCIENCE | 2004年 / 19卷 / 04期

关键词：

raised beaches; relative sea-level curve; Holocene; deglaciation; Antarctica;

D O I：

10.1002/jqs.825

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

More than 100 radiocarbon dates of penguin guano and remains, shells and seal skin afford ages for raised beaches adjacent to Terra Nova Bay, Antarctica. These dates permit construction of a new relative sea-level curve that bears on the timing of deglaciation. Recession of the Ross Sea ice-sheet grounding line from Terra Nova Bay occurred no earlier than 7200 C-14 yr (8000 cal. yr) BP. Retreat along the Victoria Land coast may have been rapid, possibly contributing to eustatic sea-level rise centred at ca. 7600 cal. yr BP. The presence of a significant amount of ice remaining in the Ross Sea Embayment in Holocene time lessens the chance that Antarctica contributed significantly to meltwater pulse 1A several thousand years earlier. Copyright (C) 2004 John Wiley Sons, Ltd.

引用

页码：377 / 396

页数：20

共 42 条

[1] Problems and possible solutions concerning radiocarbon dating of surface marine sediments, Ross Sea, Antarctica [J].