Email this article Type IIa Diamond Formation
- Authors: Simakov S.K.1
-
Affiliations:
- OOO Adamant
- Issue: Vol 482, No 2 (2018)
- Pages: 1336-1338
- Section: Geochemistry
- URL: https://ogarev-online.ru/1028-334X/article/view/194222
- DOI: https://doi.org/10.1134/S1028334X18100197
- ID: 194222
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Abstract
The petrological model of type IIa diamond formation is proposed. By the model these diamonds were formed from fluids on the last stages of kimberlite magma formation at 600–700°C and in the range of 20–30 kbar. The model explains the main specific of the type IIa diamonds. They are the enrichment of light carbon, low nitrogen content, the absence of silicate inclusions, the large size and cleanliness, a high degree of desorption.
About the authors
S. K. Simakov
OOO Adamant
Author for correspondence.
Email: simakov@ap1250.spb.edu
Russian Federation, St. Petersburg, 194064
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