Abstract

In this paper, deep structural features of the structures comprised in the southern Tatar Trough are determined based on structural-density and petromagnetic modeling. The riftogenic nature of this morphostructure is confirmed. The distribution of anomalous methane concentrations detected in water and the upper part of the sedimentary cover above these objects is investigated. It is shown that in an area adjacent to the riftogenic structures the sialic crust has experienced characteristic changes. Possible pathways providing a supply of thermogenic methane to the upper part of the sedimentary cover and the water column are revealed.

中文翻译：

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鞑靼海槽南部深部地壳结构与气体地球化学异常分布

摘要

在本文中，根据构造密度和岩磁模型确定了南鞑靼海槽构造的深部构造特征。这种形态结构的裂谷性质得到证实。研究了在水中和这些物体上方的沉积盖层上部检测到的异常甲烷浓度的分布。结果表明，在裂谷生成结构附近的区域，唾液酸地壳经历了特征性变化。揭示了向沉积盖层和水柱的上部提供产热甲烷供应的可能途径。