极地研究 ›› 1992, Vol. 3 ›› Issue (2-English): 56-68.

• 目次 • 上一篇    

THE ENVIRONMENTAL EVENTS ON KING GEORGE ISLAND SINCE THE LAST GLACIATION

 Xie Youyu1 and Cui Zhijiu2   

  1. 1Institute of Geography, Chinese Academy of Sciences, Beijing 100101 2Department of Gorgraphy, Peking University, Beijing 100871
  • 出版日期:1942-06-30 发布日期:1942-06-30
  • 通讯作者: Xie Youyu

THE ENVIRONMENTAL EVENTS ON KING GEORGE ISLAND SNCE THE LAST GLAClATION

 Xie Youyu1 and Cui Zhijiu2   

  1. 1Institute of Geography, Chinese Academy of Sciences, Beijing 100101 2Department of Gorgraphy, Peking University, Beijing 100871
  • Online:1942-06-30 Published:1942-06-30
  • Contact: Xie Youyu

摘要:

The extension of ice sheet on King George Island during the last glaciation was an environment event since the last glaciation. At that time South Shedlands Islands were a large unified island and the ice mass on King George Island might come from the Antarctic Peninsula. The model of ice retreat and ice advance events in the Holocene show that the ice sheet was separated into three small ice caps and then dispeared gradually. At present the retreating velocity of glacier is about 1.3m each year. After the retreat of ice sheet the isostatic compensation appeared in the crust there, and then 5-6 steps of the uplifted marine terraces have been developed along the coast. The uplift rate of the crust may be 6-10mm/a.

关键词: Ice advance, ice retreat, isostatic compensation uplift

Abstract:

The extension of ice sheet on King George Island during the last glaciation was an environment event since the last glaciation. At that time South Shedlands Islands were a large unified island and the ice mass on King George Island might come from the Antarctic Peninsula. The model of ice retreat and ice advance events in the Holocene show that the ice sheet was separated into three small ice caps and then dispeared gradually. At present the retreating velocity of glacier is about 1. 3m each year. After the retreat of ice sheet the isostatic compensation appeared in the crust there, and then 5-6 steps of the uplifted marine terraces have been developed along the coast. The uplift rate of the crust may be 6-10mm/a.

Key words: Ice advance, ice retreat, isostatic compensation uplift