Abstract

Carbonate concretions in the region of Paramushir hydroacoustic anomalies are confined to the methane seep zones controlled by deep (tectonically weakened) bottom areas. Based on the structure, as well as chemical and mineral composition, the concretions can be classified as volcanosedimentary rock consisting of the vitro-, litho-, and crystalloclasts and buried microfauna cemented with the carbonate (aragonite) cement. The details and sequence of mineral formation of carbonate concretions are considered.

中文翻译：

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Paramushir 水声异常区（鄂霍次克海）碳酸盐结核的组成和成因

摘要

Paramushir 水声异常区域的碳酸盐结核局限于受深（构造弱化）底部区域控制的甲烷渗漏带。根据结构以及化学和矿物成分，结核可分为火山沉积岩，由碎屑岩、碎屑岩和碎晶岩组成，以及用碳酸盐（文石）胶结物胶结的埋藏微型动物。考虑了碳酸盐结核的矿物形成的细节和顺序。