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首页> 外文期刊>Water, Air, and Soil Pollution >SEASONAL CHANGES OF MAGNETIC SUSCEPTIBILITY IN SEDIMENTS FROM LAKE ZYWIEC (SOUTH POLAND)
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SEASONAL CHANGES OF MAGNETIC SUSCEPTIBILITY IN SEDIMENTS FROM LAKE ZYWIEC (SOUTH POLAND)

机译：ZYWIEC湖（波兰南部）沉积物中磁化率的季节性变化

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摘要

Lake Zywiec is a man-made lake constructed in 1965 on the Sola River, Beskidy Mountains (South Poland). The lake is the largest one in a flood control reservoir system known as the Sola Cascade. In May and September 1970, separated by a big flood event in July, the lake was sampled for rock magnetic, chemical and granulometric studies. In 85% of the September samples, susceptibility decreases by 10 to 40% compared to the value measured in May. Seasonal changes are also observed in the total Fe content and some heavy metals. A general decrease in Zn, Pb, Cd, Cu and Cr content during the summer season was observed in the whole lake. The content of other metals such as Mn and Ni increased in samples taken in September. The changes observed in the lake sediments could be only an accidental result of the flood or may indeed result from seasonal changes fostered by the flood effect.
机译：Zywiec湖是人造湖，建于1965年，位于Beskidy山（南波兰）的Sola河上。该湖是称为Sola Cascade的防洪水库系统中最大的湖泊。 1970年5月和1970年9月，由于7月发生大洪水，该湖被取样进行岩石磁学，化学和粒度研究。在9月的样本中，有85％的磁化率与5月的测量值相比降低了10％至40％。还观察到总铁含量和某些重金属的季节性变化。在整个湖中，夏季锌，铅，镉，铜和铬的含量普遍下降。在9月份采集的样品中，其他金属如Mn和Ni的含量有所增加。在湖泊沉积物中观察到的变化可能仅仅是洪水的偶然结果，或者确实可能是由于洪水效应而引起的季节性变化。

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