波罗的海东南部海底地下水排放带的形态和化学特征

IF 0.7 Q4 GEOSCIENCES, MULTIDISCIPLINARY

Russian Journal of Earth Sciences Pub Date : 2022-08-09 DOI:10.2205/2022es000776

A. Krek, A. Danchenkov, G. Mikhnevich

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引用次数: 0

摘要

通过对格但斯克深底沉积物和近底水层的综合研究，发现了Ca最大值异常，标志着牛津-铁通含水层的排放。排泄带与含气饱和沉积物有关，这是由水流体和气态流体沿构造断裂上行的共同通道造成的。海底地形的详细测量和沉积物上层的声学测量有助于确定含气沉积物的面积和麻坑的大小。

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Morphological and chemical features of submarine groundwater discharge zones in the south-eastern part of the Baltic Sea

The complex study of the bottom sediments and near-bottom water layer of the Gdansk Deep revealed the Ca maximum anomaly, marking the discharge of the Oxford-Titonian aquifer. The discharge zone is associated with gas-saturated sediments, which is caused by a common pathway of aqueous and gaseous fluids upraise along tectonic faults. The detailed survey of a seabed topography and acoustic survey of the sediments upper layer helped to specify the area of gas-saturated sediments and the size of the pockmarks.

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来源期刊

Russian Journal of Earth Sciences GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

15.40%

发文量