Groundmass Chromospinellides from Kimberlites of Khompu-May Kimberlite Field
Abstract The current paper presents the results of studying chromites of kimberlite mesostasis forming the Manchary, Aprelskaya, Erel, Turakhskaya, and Artemova pipes within the Khompu-May kimberlite field (central Yakutia). Despite shared texture and structural characteristics and mineral compositi...
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crioppubl:10.1088/1755-1315/906/1/012108 2024-06-02T08:15:51+00:00 Groundmass Chromospinellides from Kimberlites of Khompu-May Kimberlite Field Oparin, Nikolay Oleynikov, Oleg 2021 http://dx.doi.org/10.1088/1755-1315/906/1/012108 https://iopscience.iop.org/article/10.1088/1755-1315/906/1/012108 https://iopscience.iop.org/article/10.1088/1755-1315/906/1/012108/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining IOP Conference Series: Earth and Environmental Science volume 906, issue 1, page 012108 ISSN 1755-1307 1755-1315 journal-article 2021 crioppubl https://doi.org/10.1088/1755-1315/906/1/012108 2024-05-07T13:55:36Z Abstract The current paper presents the results of studying chromites of kimberlite mesostasis forming the Manchary, Aprelskaya, Erel, Turakhskaya, and Artemova pipes within the Khompu-May kimberlite field (central Yakutia). Despite shared texture and structural characteristics and mineral composition of the kimberlites, chromospinellide composition is distinctive in each pipe. Groundmass chromium spinel of the Aprelskaya and Erel kimberlite pipes is characterized by the highest aluminum oxide content (>10 wt. %). Chromites from the Erel and Turakhskaya pipes as well as a fraction of grains from the Manchary pipe with titanium oxide (<4 wt. %) form a field of common composition by Cr 2 O 3 and TiO 2 content. The Aprelskaya and Artemova pipes show up to 17 wt. % TiO 2 in chromites. Such a difference in titanium content correlates with perovskite content in kimberlite groundmass of the Khompu-May field. The results of the study revealed two trends in evolution of chromospinellide microcrystals (R. Mitchell, 1986) – ulvöspinel associated with typical kimberlites and titanomagnetite characteristic of micaceous kimberlites. Chromospinellides of the Aprelskaya pipe demonstrate the ulvöspinel trend only, suggesting earlier spinel crystallization relative to groundmass mica. Spinellides from the Erel and Artemova pipes follow the titanomagnetite trend only, being crystallized after formation of mesostasis mica. Spinellides from the Manchary and Turakhskaya pipes meet the ulvöspinel and titanomagnetite trend, indicating two stages of mineral crystallization relative to phlogopite. Article in Journal/Newspaper Yakutia IOP Publishing Khompu ENVELOPE(130.144,130.144,61.542,61.542) IOP Conference Series: Earth and Environmental Science 906 1 012108 |
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Abstract The current paper presents the results of studying chromites of kimberlite mesostasis forming the Manchary, Aprelskaya, Erel, Turakhskaya, and Artemova pipes within the Khompu-May kimberlite field (central Yakutia). Despite shared texture and structural characteristics and mineral composition of the kimberlites, chromospinellide composition is distinctive in each pipe. Groundmass chromium spinel of the Aprelskaya and Erel kimberlite pipes is characterized by the highest aluminum oxide content (>10 wt. %). Chromites from the Erel and Turakhskaya pipes as well as a fraction of grains from the Manchary pipe with titanium oxide (<4 wt. %) form a field of common composition by Cr 2 O 3 and TiO 2 content. The Aprelskaya and Artemova pipes show up to 17 wt. % TiO 2 in chromites. Such a difference in titanium content correlates with perovskite content in kimberlite groundmass of the Khompu-May field. The results of the study revealed two trends in evolution of chromospinellide microcrystals (R. Mitchell, 1986) – ulvöspinel associated with typical kimberlites and titanomagnetite characteristic of micaceous kimberlites. Chromospinellides of the Aprelskaya pipe demonstrate the ulvöspinel trend only, suggesting earlier spinel crystallization relative to groundmass mica. Spinellides from the Erel and Artemova pipes follow the titanomagnetite trend only, being crystallized after formation of mesostasis mica. Spinellides from the Manchary and Turakhskaya pipes meet the ulvöspinel and titanomagnetite trend, indicating two stages of mineral crystallization relative to phlogopite. |
format |
Article in Journal/Newspaper |
author |
Oparin, Nikolay Oleynikov, Oleg |
spellingShingle |
Oparin, Nikolay Oleynikov, Oleg Groundmass Chromospinellides from Kimberlites of Khompu-May Kimberlite Field |
author_facet |
Oparin, Nikolay Oleynikov, Oleg |
author_sort |
Oparin, Nikolay |
title |
Groundmass Chromospinellides from Kimberlites of Khompu-May Kimberlite Field |
title_short |
Groundmass Chromospinellides from Kimberlites of Khompu-May Kimberlite Field |
title_full |
Groundmass Chromospinellides from Kimberlites of Khompu-May Kimberlite Field |
title_fullStr |
Groundmass Chromospinellides from Kimberlites of Khompu-May Kimberlite Field |
title_full_unstemmed |
Groundmass Chromospinellides from Kimberlites of Khompu-May Kimberlite Field |
title_sort |
groundmass chromospinellides from kimberlites of khompu-may kimberlite field |
publisher |
IOP Publishing |
publishDate |
2021 |
url |
http://dx.doi.org/10.1088/1755-1315/906/1/012108 https://iopscience.iop.org/article/10.1088/1755-1315/906/1/012108 https://iopscience.iop.org/article/10.1088/1755-1315/906/1/012108/pdf |
long_lat |
ENVELOPE(130.144,130.144,61.542,61.542) |
geographic |
Khompu |
geographic_facet |
Khompu |
genre |
Yakutia |
genre_facet |
Yakutia |
op_source |
IOP Conference Series: Earth and Environmental Science volume 906, issue 1, page 012108 ISSN 1755-1307 1755-1315 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1755-1315/906/1/012108 |
container_title |
IOP Conference Series: Earth and Environmental Science |
container_volume |
906 |
container_issue |
1 |
container_start_page |
012108 |
_version_ |
1800740164325081088 |