Abstract

The common geochemical features of Kamchatka near-surface ashes (ashes that underlie surface organogenic soil horizons) include their depletion in most chemical elements compared with the average figures for volcanic rocks of the same composition and their relative enrichment in a narrow range of elements, mostly those which are typomorphic for basic rocks (Р, Mg, V, Cr, Cu, Zn, Zr, and Sb). Viewed upon the background of small variations in the concentrations of chemical elements in ashes from different areas in the peninsula, the range of their dominant elements is controlled by their petrochemical composition. The vigorous activity of Kamchatka’s Northern Group of Volcanoes has produced relatively higher concentrations of mobile forms of elements in the near-surface ashes of the Northern Province compared with the ashes found in the southern part of the peninsula.

中文翻译：

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堪察加半岛的火山活动与土壤和植被的地球化学。第1部分。近地表火山灰的一些地球化学特征

摘要

堪察加半岛近地面骨灰（构成表面器官土壤层的灰烬）的常见地球化学特征包括：与化学成分相同的火山岩的平均数相比，大多数化学元素的耗竭程度及其相对富集的范围狭窄。对于基岩是错形的（Р，Mg，V，Cr，Cu，Zn，Zr和Sb）。从半岛不同地区的骨灰中化学元素浓度发生细微变化的背景来看，其主要元素的范围受其石化成分控制。