摘要
本文研究了黄河口邻近海域中Cl‰、PH、SO_4^(2-)在表层沉积间隙水中的地球化学特征。我们认为,可用氯度参数在地质学上指示出这一海区的泥砂运移方向。本文提出:表层沉积间隙水中的硫酸盐含量呈现异常增高现象,而自生黄铁矿在沉积中的生物氧化过程可能是产生此种异常的原因。
The gcochemical characteristics of chlorinity, PH, and sulfate in the interstitial water of the surface sediment in the reseaerch area were studied. We suggest that .the chlorinity parameter can be used as an indicater to discribe the movement of the sediment from the Huanghe River.The sulfate concentrations in the interstitial water of the surface sediment of the Bohai Sea adjacent to the Huanghe River estuary were enriched, relative to the conservative scawater ratio with C1‰(0. 1415g SO42-1-1-SW/C1‰) , by 4 % roughly between May 29 and June 8. The results obtained show that the excess SO42- might have been produced under in situ condition via the biochemical (not chemical) oxidation of pyrite occurring within the surface layer of mud.
