地理科学 ›› 1997, Vol. 17 ›› Issue (4): 329-335.doi: 10.13249/j.cnki.sgs.1997.04.329

• 论文 • 上一篇    下一篇

我国东北地区火口湖、堰塞湖水体环境中元素的地球化学特征

阎百兴   

  1. 中国科学院长春地理研究所, 长春130021
  • 收稿日期:1995-09-06 修回日期:1996-07-05 出版日期:1997-07-20 发布日期:1997-07-20

STUDY ON GEOCHEMICAL FEATURE IN WATER ENVIRONMENT IN CRATER AND BARRIER LAKES IN NORTHEAST CHINA

Yan Baixing   

  1. Changchun Insititute of Geography, Academia Sinica, Changchun 130021
  • Received:1995-09-06 Revised:1996-07-05 Online:1997-07-20 Published:1997-07-20

摘要: 我国东北地区有许多火口湖和火山活动形成的堰塞湖,这些湖泊中蕴藏丰富的淡水资源。本文系统报道了湖水及湖底沉积物中元素的组成和地球化学特征,探讨了湖水中元素含量的垂直变化和季节变化、沉积物中元素的相关关系和迁移系数。结果发现:湖水中Na、Rb、Cs、K、Be、W、F含量火口湖高于堰塞湖;沉积物中Pb、La含量火口湖高于堰塞湖,而V、Co、Ba堰塞湖高于火口湖。湖水和沉积物中元素含量受汇水区岩性的强烈影响,生物地球化学作用也起了一定作用.

Abstract: There are many lakes formed by volcanic activity in northeast China. The water resource is very rich in these lakes. This paper reports systematically some elemental geochemical features and composition in water and sediment in these crater and barrier lakes. We discoved that the contents of Na,Rb,Cs,K,Be,W,F in water of crater lakes are higher than those in barrier lakes. The contents of Pb and La in sediment of crater lakes are higher and the contents of V,Co,Ba are lower than those in barrier lakes. Also the paper approaches the vertical changes and seasonal variation of elemental contents in water, correlation and moving coefficient of elements in sediment.