Abstract

This paper presents geochemical, microprobe, paleomagnetic, and rock magnetic data from peat accumulated over the past 10 000 years in the area between the Khor and Kiya rivers (Khabarovsk krai). A horizon ranging in thickness between 75 and 100 cm with elevated concentrations of Ni, Zn, Bi, and Se is identified as a result of comprehensive studies. Magnetite and carbon spherules, as well as native iron found at the bottom of the horizon suggest an impact event that occurred about 5500 years ago. For the first time, peat deposits are a target of paleomagnetic research. Distinct inclination variations of the remanent magnetization vector are established in the horizon at a depth of 50 to 75 cm, which corresponds in time to the “Etrussia” geomagnetic excursion (2500 years ago).

中文翻译：

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Sikhote–Alin Khor–Kiya Interfluve泥炭矿床的地球化学和磁性（初步结果）

摘要

本文介绍了过去一万年来在霍尔河和基亚河（哈巴罗夫斯克边疆区）之间的泥炭中积累的地球化学，微探针，古磁和岩石磁数据。综合研究的结果，确定了厚度在75至100厘米之间的水平线，其中镍，锌，铋和硒的浓度升高。地平线底部发现的磁铁矿和碳球以及天然铁表明发生了大约5500年前的撞击事件。泥炭沉积首次成为古磁性研究的目标。剩余磁化矢量的明显倾斜度变化在地平线上的50至75 cm深度处确定，这在时间上对应于“ Etrussia”地磁偏移（2500年前）。