Mineralogy of the Drazhnoye gold ore deposit, the Republic of Sakha (Yakutia)
https://doi.org/10.32454/0016-7762-2019-5-57-63
Abstract
New data on the mineral composition of the Drazhnoye gold deposit, located within the Taryn ore field, have been presented. The samples from the central and flank areas of the deposit, which characterize ore and barren zones, have been studied. Based on the detailed studies of the interrelationship and the form of mineral exhalations and their aggregates, the stages of mineral formation have been proposed, including two main stages: sediment-diagenetic and hydrothermal-metasomatic. It has been revealed that the main precipitator of early native gold was pyrrhotite, which later, with an increase in fugacity of sulfur, was almost replaced by later pyrite. At the end of hydrothermalmetasomatic stage, native gold is formed from gold-bearing solutions and is located often in quartz and quartzcarbonate veinlets as independent precipitates, less commonly associated with polymetallic minerals, pyrite and arsenopyrite. Previous researchers of the Drazhnoye deposit established its genetic relationship with hydrothermal solutions. The data obtained confirm this. According to the type of gold ore mineralization and the type of prospective deep source of solution, this field is previously attributed to a hydrothermal pluton-related gold — quartz formation.
About the Authors
V. Yu. Chikatueva
Lomonosov Moscow State University;
LLC «Institute of geotechnology»
Russian Federation
Russian Federation
1, Leninskie Gory, Moscow 119991;
bld. 77, 1, Leninskie Gory, Moscow 119234
S. A. Sitkevich
LLC «Institute of geotechnology»
Russian Federation
bld. 77, 1, Leninskie Gory, Moscow 119234
Russian Federation
bld. 77, 1, Leninskie Gory, Moscow 119234
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Review
For citations:
Chikatueva V.Yu., Sitkevich S.A. Mineralogy of the Drazhnoye gold ore deposit, the Republic of Sakha (Yakutia). Proceedings of higher educational establishments. Geology and Exploration. 2019;(5):57-63. (In Russ.) https://doi.org/10.32454/0016-7762-2019-5-57-63
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