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Historical-Genetic Analysis of the Formation of High-Grade Iron Ores and Related Bauxites in the Kursk Magnetic Anomaly (Russia)

Historical-Genetic Analysis of the Formation of High-Grade Iron Ores and Related Bauxites in the... High-grade iron ores and bauxites of the Kursk magnetic anomaly (KMA) were formed in weathering crusts on the Early Precambrian ferruginous quartzites and shales, i.e., banded iron formation (BIF). Thus far, weathering crusts on the BIF were considered separately, although they formed simultaneously and represent a single sequence in each ore region. Therefore, it is of great interest to compare the coeval weathering crusts on rocks of the formation under consideration for a complex prediction of high-grade iron ores and bauxites. The obtained results showed that the BIF-hosted iron ores were formed during all stages of crust formation in the Paleozoic and such ores can be predicted throughout the KMA, whereas bauxites were only formed in inter-ore shales on the southwestern flank of the anomaly. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Lithology and Mineral Resources Springer Journals

Historical-Genetic Analysis of the Formation of High-Grade Iron Ores and Related Bauxites in the Kursk Magnetic Anomaly (Russia)

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References (22)

Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Inc. 2022. ISSN 0024-4902, Lithology and Mineral Resources, 2022, Vol. 57, No. 4, pp. 290–298. © Pleiades Publishing, Inc., 2022. Russian Text © The Author(s), 2022, published in Litologiya i Poleznye Iskopaemye, 2022, No. 4, pp. 334–343.
ISSN
0024-4902
eISSN
1608-3229
DOI
10.1134/s002449022204006x
Publisher site
See Article on Publisher Site

Abstract

High-grade iron ores and bauxites of the Kursk magnetic anomaly (KMA) were formed in weathering crusts on the Early Precambrian ferruginous quartzites and shales, i.e., banded iron formation (BIF). Thus far, weathering crusts on the BIF were considered separately, although they formed simultaneously and represent a single sequence in each ore region. Therefore, it is of great interest to compare the coeval weathering crusts on rocks of the formation under consideration for a complex prediction of high-grade iron ores and bauxites. The obtained results showed that the BIF-hosted iron ores were formed during all stages of crust formation in the Paleozoic and such ores can be predicted throughout the KMA, whereas bauxites were only formed in inter-ore shales on the southwestern flank of the anomaly.

Journal

Lithology and Mineral ResourcesSpringer Journals

Published: Aug 1, 2022

Keywords: Kursk magnetic anomaly; weathering crusts; high-grade iron ores; bauxite; magnetite; martite; hematite; boehmite; gibbsite

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