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首页> 外文期刊>Oceanology >Clay Minerals as an Indicator of the Accumulation of the Upper Quaternary Deposits in the St.Anna Trough (Kara Sea)
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Clay Minerals as an Indicator of the Accumulation of the Upper Quaternary Deposits in the St.Anna Trough (Kara Sea)

机译：黏土矿物是St.Anna槽（喀拉海）上第四纪沉积物堆积的指标

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摘要

This paper is devoted to the studies of clay minerals from two cores collected in the northern and central regions of the St.Anna Trough,the largest trough of the Kara Sea.The Upper Quaternary glacial,gla-ciomarine,and marine deposits are characterized by various contents of kaolinite,chlorite,illite,and smectite.It is established that,from older to younger deposits,the amounts of kaolinite and chlorite generally decrease,while those of illite and smectite,on the contrary,increase.A joint analysis of the distributions of clay and heavy minerals over the section allowed us to refine the position of the sources for the terrigenous matter and their temporal variability.It is shown the changes in the sources of supply were directly related to the climate changes that occurred when passing from the glacial to marine sedimentation environments.
机译：本文致力于研究在卡拉海最大的槽St.Anna槽的北部和中部地区采集的两个岩心的粘土矿物。上部第四纪的冰川，gla-ciomarine和海洋沉积物的特征是高岭石，绿泥石，伊利石和蒙脱石的含量各不相同。据确定，从老到年轻的沉积物中，高岭石和绿泥石的含量通常会减少，而伊利石和蒙脱石的含量反而会增加。剖面上粘土和重矿物的分布使我们可以精确地确定陆源物质的来源及其时间变异性。这表明供给来源的变化与从陆路经过时发生的气候变化直接相关。冰河到海洋沉积环境。

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