Extra-Mantle Genetic Diamond Types and the Potential of the Kamchatka Diamondiferous Province of Russia

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发表日期：

2024年4月1日

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V. I. Silaev,
G. A. Karpov,
A. G. Demin,
L. P. Anikin,
L. P. Vergasova,
V. N. Filippov,
I. V. Smoleva,
E. A. Vasiliev,
A. E. Sukharev,
B. A. Makeev,
A. F. Khazov

摘要

Abstract

This paper reports results from a study of two new genetic types of diamond discovered in Kamchatka. These diamonds were formed under extra-mantle conditions, as can be inferred from the fact that there is no indication of post-crystallization annealing with the formation of aggregated nitrogen defects in them. The first of these types is defined by us as volcanic-atmoelectrogenic. This is formed directly in a volcanic ash-gas cloud due to deep-seated methane released by atmospheric electric discharges. The second genetic type of diamonds is formed at depth within a magmatic-pneumatolytic-hydrothermal ore deposit, and can be defined as the explosive-tuffisite type. The industrial potential of these types enables us to assert the discovery of a new diamondiferous province, i.e., the Kamchatka Province.