A Find of Coesite in Diamond-Bearing Kyanite Eclogite from the Udachnaya Kimberlite Pipe, Siberian Craton
- 作者: Mikhailenko D.1, Korsakov A.1, Rezvukhina O.1, Golovin A.1, Sobolev N.1,2
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隶属关系:
- Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
- Novosibirsk National Research State University
- 期: 卷 487, 编号 2 (2019)
- 页面: 925-928
- 栏目: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/195334
- DOI: https://doi.org/10.1134/S1028334X19080087
- ID: 195334
如何引用文章
详细
A find of coesite in a kyanite graphite–diamond-bearing eclogite xenolith from the Udachnaya–Vostochnaya kimberlite pipe is described in this paper. The coesite relics were found in intensely fractured garnet indicating some influence of the kimberlite melt, which is supported by the typical secondary mineral assemblage around this inclusion. These data indicate that shallower diamond-free coesite-grade rocks (2.7 GPa) underwent metamorphism distinct from diamond-bearing coesite eclogites (≥4 GPa). The metasomatic alteration of rock as a result of the C–O–H fluid-rock interaction during diamond crystallization may be another possible reason for the absence of coesite in diamond-bearing xenoliths.
作者简介
D. Mikhailenko
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: akorsakov74@gmail.com
俄罗斯联邦, Novosibirsk, 630090
A. Korsakov
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: akorsakov74@gmail.com
俄罗斯联邦, Novosibirsk, 630090
O. Rezvukhina
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: akorsakov74@gmail.com
俄罗斯联邦, Novosibirsk, 630090
A. Golovin
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: akorsakov74@gmail.com
俄罗斯联邦, Novosibirsk, 630090
N. Sobolev
Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences; Novosibirsk National Research State University
Email: akorsakov74@gmail.com
俄罗斯联邦, Novosibirsk, 630090; Novosibirsk, 630090