The Unique Sabantuy Chromite Paleoplacer in the Sedimentary Cover of the Eastern European Platform

—In the section of the sedimentary cover of the East European Platform, the new Sabantuy chromite ore occurrence was revealed. It is localized in Upper Kazanian sandstones of the erosional terrace above the floodplain of Malaya Berkutla Creek in the south-west of the Republic of Bashkortostan. The a...

Full description

Saved in:
Bibliographic Details
Published inGeology of ore deposits Vol. 62; no. 6; pp. 542 - 546
Main Authors Rakhimov, I. R., Saveliev, D. E., Kholodnov, V. V., Zamyatin, D. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.11.2020
Springer Nature B.V
Subjects
Chromite
Chromium
Coastal inlets
Earth and Environmental Science
Earth Sciences
Floodplains
Lithology
Mineral Resources
Mineralogy
Ophiolites
Platforms (geology)
Sandstone
Short Communications
Spinel
Ultramafic materials
Ultramafic rocks
East European platform
Permian sandstones
paleoplacer
chromites
Online AccessGet full text

Cover

More Information
Summary:—In the section of the sedimentary cover of the East European Platform, the new Sabantuy chromite ore occurrence was revealed. It is localized in Upper Kazanian sandstones of the erosional terrace above the floodplain of Malaya Berkutla Creek in the south-west of the Republic of Bashkortostan. The article presents the first results of geological, lithological, and mineralogical–geochemical studies of the new ore occurrence with signatures of an ancient coastal–marine placer. The Cr 2 O 3 content in chromite sandstones (chromitolites) is 15.9–17.2 wt %. The bulk of the heavy fraction (67%) is composed of sub-angular and sub-rounded Cr-spinel grains 0.15–0.25 mm in size. Their mineralogical features indicate proximity to Cr-spinels from ultramafic rocks of ophiolite complexes.
ISSN:1075-7015
1555-6476
DOI:10.1134/S1075701520050062