Stepanov, Sergey, Palamarchuk, Roman, Kutyrev, Anton ORCID: https://orcid.org/0000-0001-5933-6455, Lepekhina, Elena, Sharpenok, Ludmila, Shagalov, Evgeniy and Minervina, Elena
2024.
Nature of perovskite mineralization of silicate-carbonate veins in the margins of Kusinsko-Kopanskaya layered intrusion (South Urals, Russia).
Minerals
14
(5)
, 478.
10.3390/min14050478
Item availability restricted. |
PDF
- Published Version
Restricted to Repository staff only Download (13MB) |
Abstract
This study presents the first comprehensive investigation of perovskite from its type locality (Mineral Mines of Southern Urals, Russia), where this mineral was first described by Gustav Rose in 1839. The new data includes results from precise chemical analyses (electron-probe microanalyzer, LA-ICP-MS) and U-Pb ages (SHRIMP-II) of perovskite. Perovskite occurs in silicate-carbonate veins that transect the marginal parts of the Middle Riphaean Kusinsko-Kopanskaya layered intrusion, previously thought to be skarns. The perovskite crystals range from micrometer-scale grains to up to 11 cm in size. Chemical investigations revealed a low content of trace elements (rare earth elements, Y, Nd, U, Th) compared to perovskites from alkaline ultramafic rocks, silica-undersaturated basic rocks, carbonatites, and kimberlites. The determined age of the perovskite, 535 ± 43 Ma, significantly differs from the 1379 ± 8 Ma age of the Kusinsko-Kopanskaya intrusion, challenging the skarn-origin hypothesis for perovskite. Instead, the findings suggest a carbonatite origin for the perovskite mineralization. This timing indicates a previously unknown stage of endogenic activity on the Western Slope of the Southern Urals.
Item Type: | Article |
---|---|
Date Type: | Published Online |
Status: | Published |
Schools: | Earth and Environmental Sciences |
Additional Information: | License information from Publisher: LICENSE 1: URL: https://creativecommons.org/licenses/by/4.0/, Type: open-access |
Publisher: | MDPI |
ISSN: | 2075-163X |
Date of First Compliant Deposit: | 8 May 2024 |
Date of Acceptance: | 27 April 2024 |
Last Modified: | 18 Oct 2024 01:29 |
URI: | https://orca.cardiff.ac.uk/id/eprint/168765 |
Actions (repository staff only)
Edit Item |