期刊
ANTARCTIC SCIENCE
卷 20, 期 6, 页码 581-587出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0954102008001417
关键词
Adelie penguin; cosmogenic isotopes; grounding-line; last glacial period; Ross Ice Shelf; Ross Sea
资金
- NERC [bas010011, bas010018] Funding Source: UKRI
- Natural Environment Research Council [bas010011, bas010018] Funding Source: researchfish
We present two Be-10 exposure ages from erratic boulders at Cape Adare, northem Victoria Land. The exposure ages obtained suggest that Cape Adare was covered by ice during the last glacial period, and the younger age points to deglaciation around 16.2 ka. Comparison of our younger Be-10 exposure age with published radiocarbon dates for Adelie penguin occupation at Cape Adare suggests that the onset of penguin colonization (at 2-3 kyr before present) lagged behind the deglaciation by at least 11.5 kyr. These observations indicate that penguin colonization did not occur until several thousand years after ice free ground became available.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据