Abstract

Based on the results of magnetotelluric soundings carried out in the southern part of the Sikhote Alin Fold System in the frequency range from 10 kHz to 0.001 Hz, the geoelectric section was constructed down to a depth of 150 km. The electrical parameters have been obtained and the crust and upper mantle structure has been studied. The crust has a high resistivity ranging from 1000 to 20 000 Ohm m and is divided into fault-bordered blocks according to low resistivity zones. Two zones with abnormally low resistivities of 100–200 Ohm m and lower have been distinguished in the crust and upper mantle. The structure of the geoelectric section is related to the subduction of an ancient plate and the formation of a slab window.

中文翻译：

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沿亚伯拉谢夫卡-瓦伦丁剖面的大地电磁测深资料，锡克特南部的地壳和上地幔结构

摘要

根据在Sikhote Alin褶皱系统的南部在10 kHz至0.001 Hz频率范围内进行的大地电磁测深的结果，构造了地电部分直至150 km的深度。获得了电学参数并研究了地壳和上地幔结构。地壳的电阻率范围从1000到20000 Ohm m，并根据低电阻率区域划分为断层带边界的块。在地壳和上地幔中，有两个电阻率异常低的区域，分别为100-200 Ohm m和更低。地电部分的结构与古代板块的俯冲和平板窗的形成有关。