Magnetic microphases in chrome-spinels from alpine-type ultramafic rocks, Central Urals / Sherendo T. A.,Mitrofanov V. Ya,Martyshko P. S.,Vazhenin V. A.,Pamyatnykh L. A.,Alekseev A. V. // DOKLADY EARTH SCIENCES. - 2014. - V. 456, l. 1. - P. 563-566.

ISSN/EISSN:

1028-334X / 1531-8354

Type:

Article

Abstract:

The ore and accessory chrome-spinels from metamorphosed dunites of the Cr-bearing Klyuchevskoi alpine-type ultramafic massif are studied. As a result of use of thermomagnetic analysis in the range of 4-900 K, magnetic resonance spectroscopy, and magnetic-force microscopy, secondary magnetic Fe3+-enriched microphases chaotically distributed in the primary nonmagnetic mineral were revealed for the first time in accessory chrome-spinels. It was established that the metamorphosed accessory chrome-spinels produce the magnetic properties of the host rocks and the primary nonmagnetic chrome-spinels forming ore bodies remains almost unaltered. This originates the contrast of magnetic properties between the ore body and host rocks and provides the geomagnetic anomaly in the ore-hosting zone.

Author keywords:

нет данных

DOI:

10.1134/S1028334X14050195

Web of Science ID:

ISI:000337057800015

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1531-8354
Research-Areas	Geology
Web-of-Science-Categories	Geosciences, Multidisciplinary
Author-Email	Tatyana\_Sherendo@mail.ru
ResearcherID-Numbers	Martyshko, Peter/R-5902-2016 Pamyatnykh, Lidia/C-7780-2017
ORCID-Numbers	Pamyatnykh, Lidia/0000-0001-5044-0838
Funding-Acknowledgement	Presidium of the Russian Academy of Sciences {[}23, 12-P-5-2015]
Funding-Text	This work was supported by the Program of the Presidium of the Russian Academy of Sciences no. 23 (project no. 12-P-5-2015).
Number-of-Cited-References	14
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	20
Journal-ISO	Dokl. Earth Sci.
Doc-Delivery-Number	AI7HU