Nature of the Features of Kimberlite Placement

IF 0.3 4区 哲学 Q4 GEOSCIENCES, MULTIDISCIPLINARY
V. Shkodzinsky
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引用次数: 0

Abstract

The obtained evidence of hot heterogeneous accretion of the Earth leads to a fundamentally new solution to genetic problems. According to these data, the kimberlites were formed as a result of the rise of the last residual melts of the bottom peridotite layer of the magmatic ocean, which arose as a result of impact heat release during accretion. The diamond crystallized due to the accumulation of carbon in the residual melts during fractionation. The absence of kimberlites in oceanic and collision regions is due to the expansion of the fractionation products of the magmatic ocean by surfaced mantle plumes during the formation of these regions. The all-earth distribution of the magmatic ocean explains the presence of kimberlites on all the studied ancient platforms. A very high degree of crystallization of the peridotite layer is the reason for the small volume of kimberlite residual melts and the bodies formed by them. The low temperature of kimberlite magmas caused their decompression solidification after boiling at the shallow stage of ascent and explosion under the influence of the high pressure of the fluid phase preserved by solidification. This is the reason for the formation of kimberlite pipes and the absence of kimberlite lavas.
金伯利岩位置特征的性质
获得的地球热非均质吸积的证据为遗传问题提供了一个根本的新解决方案。根据这些数据,金伯利岩是由于岩浆海洋底部橄榄岩层最后残余熔体的上升而形成的,这些熔体是在吸积过程中撞击释放热量的结果。由于分馏过程中残余熔体中碳的积累,金刚石结晶。在大洋区和碰撞区没有金伯利岩是由于在这些区域的形成过程中,岩浆海洋的分选产物被表面地幔柱扩展。岩浆海洋的全地球分布解释了金伯利岩在所有研究的古台地上的存在。橄榄岩层的高度结晶是金伯利岩残余熔体及其形成的体体积小的原因。金伯利岩岩浆的低温使其在上升和爆炸的浅阶段沸腾后,在凝固保存的流体相高压的影响下减压凝固。这就是形成金伯利岩管而没有金伯利岩熔岩的原因。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Earth Sciences History
Earth Sciences History GEOSCIENCES, MULTIDISCIPLINARY-HISTORY & PHILOSOPHY OF SCIENCE
CiteScore
1.00
自引率
0.00%
发文量
1
审稿时长
>12 weeks
期刊介绍: Earth Sciences History promotes and publishes historical work on all areas of the earth sciences – including geology, geography, geophysics, oceanography, paleontology, meteorology, and climatology. The journal honors and encourages a variety of approaches to historical study: biography, history of ideas, social history, and histories of institutions, organizations, and techniques. Articles are peer reviewed.
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