Abstract

Multidisciplinary geophysical surveys have been carried out in the Pauzhetka hydrothermal system area and around in order to identify 10–15-km deep geological structures that exercise thermal control of the system. The results of vertical electrical and electromagnetic sounding, magnetometric and gravity surveys have been integrated, and geological–geophysical data have been generalized, to develop a model of layered block structure for the Pauzhetka hydrothermal system area. We provide an explanation of fragmentation (permeability) in upper crustal horizons in the structure of the present-day hydrothermal system and the geothermal field. A horizon of less dense rocks has been identified at depths of 3–4 to 8–9 km; this horizon can be the source of thermal supply for known and hidden temperature anomalies in the Pauzhetka–Kambalnyi–Koshelev geothermal area in southern Kamchatka.

中文翻译：

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堪察加半岛南部Pauzhetka热液系统区域的深层结构

摘要

为了确定对系统进行热控制的10–15 km深的地质结构，已经在Pauzhetka热液系统区域及其周围地区进行了多学科的地球物理调查。垂直电子和电磁测深，磁力计和重力调查的结果已被整合，并且地质-地球物理数据已得到综合，以开发Pauzhetka热液系统区域的分层块状结构模型。我们提供了当今热液系统和地热田结构中地壳上层破碎（渗透率）的解释。在3–4至8–9 km的深度处发现了一块密度较小的岩石。