首页   按字顺浏览 期刊浏览 卷期浏览 The drumlin fields of the Novaya Zemlya‐Urals region and the Kara Sea center of ...
The drumlin fields of the Novaya Zemlya‐Urals region and the Kara Sea center of glaciation

 

作者: M. G. Grosswald,  

 

期刊: Polar Geography and Geology  (Taylor Available online 1994)
卷期: Volume 18, issue 1  

页码: 15-32

 

ISSN:0273-8457

 

年代: 1994

 

DOI:10.1080/10889379409377528

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Assemblages of drumlins, crag‐and‐tail features, giant glacial grooves, and megaflutes—collectively termed “drumlin fields"—are described along the southwestern shorelines of the Kara Sea, i.e., southernmost Novaya Zemlya, Vaygach Island, the Yugorskiy Peninsula, and the Pay‐Khoy ridge. All these landforms were formed during one of the latest stages in glaciation in the Eurasian Arctic, radiocarbon dated at about 8.5 thousand years ago. At that late stage, the ice kept spreading out of the Kara Sea center, which is strongly suggested by the NE‐SW orientation of the landforms. This is consistent with the model of a continuous marine Eurasian ice sheet and contradicts the concepts of “restricted” and “diachronous” glaciation. The Kara center of glaciation turns out to be one of the most stable and long‐lived features of the Northern Hemisphere's glaciation.

 

点击下载:  PDF (1195KB)



返 回