DBPapers
DOI: 10.5593/sgem2017/11/S01.087

THERMOBAROGEOCHEMICAL FORMING CONDITIONS OF GOLD-BEARING PEGMATOID FORMATIONS OF GABBRO-NORITIC COMPLEXES OF THE CENTRAL ALDAN

T.V. Sharova
Saturday 9 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7105-98-8 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 11, 687-694 pp, DOI: 10.5593/sgem2017/11/S01.087

ABSTRACT

This article dedicated of research of thermo-bargeochemical peculiarity of auric pegmatoid, concentrated in Pre-Cambrian basites complexes of Aldan-Stanovoy shield. As result of identify genetic types of inclusions and also complex-works of vacuum-dicriptometrical and gas-chromatographical researchers of Panigin’s gold-ore bodies field, concentrated in enclosed gabbro-noroties of Medvedevsk’s igneous, were discovered three major selection highs of fluids components which connected with three systems of inclusion minerogenesis medium: low-temperature (300-400˚C), medium-temperature (300-450˚C), and high-temperature (450-700˚C). Gold-ore mineralization field was formed in two productive stages: high-temperature with pressure near 800-1400 bar and medium-temperature with pressure from 300-500 bar. Straight correlation dependency between gold value and F-index of fluid activity ore-bearing rock and mineral association ore-bodies, mean that this dependency is important sign for prospect identification and deliniation of gold mineralization.

Keywords: Pinigin’s deposit, gold, Aldan-Stanovoi Shield, thermobarogeochemistry

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