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首页 > 中国极地考察知识库 > 成果信息库 > 已审查 东南极内陆格罗夫山地区新生代冰川活动和古气候演化记录

东南极内陆格罗夫山地区新生代冰川活动和古气候演化记录

【标题】东南极内陆格罗夫山地区新生代冰川活动和古气候演化记录

【Title】EVIDENCE FOR EAST ANTARCTIC ICE SHEET DEVELO-PMENT AND PALAEOCLIMATIC EVOLUTION FROM THE GROVE MOUNTAINS,EAST ANTARCTICA

【作者】 方爱民; 刘小汉; 黄费新

【Author】 Fang Aimin ; Liu Xiaohan ; Huang Feixin

【期刊】极地研究

【Journal】

【期刊年份】2007

【卷】19

【期】

【关键词】 东南极; 格罗夫山地区; 冰川活动; 古气候

【Keywords】

【摘要】地处东南极内陆的格罗夫山地区是研究南极冰川进退和气候演化的理想场所。我国第22次南极考察(2005/2006)进行了该地区冰盖进退和古气候演化专题研究。笔者在野外考察过程中,对格罗夫山地区新生代冰川活动记录(包括冰川侵蚀地貌及冰川堆积物)进行了详细的观测,获得了很多有关该地区冰盖进退及古气候演化方面的第一手材料,同时系统回收了对反映该地区古冰川活动具有重要意义的新生代沉积岩漂砾。本文简要报道本次野外考察在冰盖进退和古气候演化方面所取得的主要成果。

【Abstract】The Grove Mountains,located about 450 km inland from the coast of the Prydz Bay in the Lambert-Amery glacial system,is an ideal place to carry out studies on the Antarctic ice-sheet development and palaeo-climatic evolution in Antarctica. Financially and logistically supported by Chinese Oceanic Administration and Chinese Polar Research Center,the 22nd Chinese National Antarctic Research Expedition(CHINARE) team made a special investigation on the evidence for climatic and ice-sheet evolution in this region.During the field survey of the 2005—2006 Chinese National Antarctic Research Expedition(CHINARE),different kinds of Cenozoic sedimentary records were found in the Grove Mountains,including(1) different types of glacial moraines left by pre-existed glaciers developed in this region at different stages;(2) large quantity of glaciogenic sedimentary erratics found in the moraine banks in the center area of Grove Mountains;(3) different scales of glacier erosion landforms,esp.,the glacial stria,formed by pre-glacier movements at different stages;and(4) extraneous ice boulders and palaesols found in different places near the center of this region.All these record a complex climatic evolution history in this region accompanied by a fairly dynamic ice-sheet evolutionary process.

【基金/项目】

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