Abstract

The results of paleomagnetic research of sediments from the Cenozoic key section of West Kamchatka at the Kvachina Bay are presented. In total, 152 samples collected from 121 stratigraphic levels of the 480-m-thick section are studied. The behavior of scalar magnetic parameters k, NRM, and Qn and magnetic anisotropy suggests that sedimentary rocks from the Kvachina Bay section were not subjected to significant deformations and substantial secondary alterations. A succession of 21 monopolar intervals combined into 10 magnetozones is identified within the section. Taking into account the correlation with reference levels of local zones based on diatoms, the correlation of recognized magnetozones with the Geomagnetic Polarity Time Scale (chrons C17 to C6) is outlined.

中文翻译：

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堪察加半岛西部海洋新生代关键地层的磁性地层学

摘要

提出了在Kvachina湾西堪察加半岛新生界关键段沉积物的古磁研究结果。总共研究了从480米厚的断层的121个地层中收集的152个样品。标量磁参数k，NRM和Qn的行为以及磁各向异性表明，Kvachina湾剖面的沉积岩没有发生明显的变形和实质性的次生变化。在该部分中识别出了连续的21个单极间隔，组合成10个磁区。考虑到与基于硅藻的局部区域参考水平的相关性，概述了公认的磁区与地磁极性时标（时间C17至C6）的相关性。