Scheelite from Kekura gold deposit, Western Chukchi peninsula: Trace elements and fluid Inclusions
https://doi.org/10.33623/0579-9406-2020-1-51-59
Abstract
Scheelite from the Kekura gold deposit in the Western Chukchi Peninsula is reported for the first time. Three generations of the mineral have been identified. According to the LA–ICP–MS data, the Mo content in scheelite does not exceed 0,2 ppm and total REE ranges from 20 to 150 ppm. The REE distribution patterns of all three scheelite generations have a strong positive Eu anomaly (Eu/Eu*=4,455,6), which is typical of scheelite from intrusion-related and orogenic gold deposits. The high Sr concentration (1300–12000 ppm) is characteristic of the hypabyssal intrusion-related Au deposits. According to the fluid inclusion data, the minimal crystallization temperature of scheelite and associated quartz is 200–250 °С.
About the Authors
E. V. Nagornaya
V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry RAS;
Lomonosov Moscow State University
Russian Federation
Russian Federation
119991, Moscow, Kosygin st., 19;
119991, GSP-1, Leninskiye Gory, 1
I. A. Baksheev
Lomonosov Moscow State University
Russian Federation
Russian Federation
119991, GSP-1, Leninskiye Gory, 1
M. O. Anosova
V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry RAS
Russian Federation
119991, Moscow, Kosygin st., 19
Russian Federation
119991, Moscow, Kosygin st., 19
M. M. Komarova
Institute of Geology of ore Deposits, Petrograghy, Mineralogy and Geochemistry RAS
Russian Federation
119017, Moscow, Staromonetny lane, 35
Russian Federation
119017, Moscow, Staromonetny lane, 35
Yu. N. Khabibullina
Lomonosov Moscow State University
Russian Federation
Lomonosov Moscow State University
Russian Federation
Lomonosov Moscow State University
V. O. Yapaskurt
Lomonosov Moscow State University
Russian Federation
Lomonosov Moscow State University
Russian Federation
Lomonosov Moscow State University
A. E. Kozionov
Gubkin Russian State University of Oil and Gas
Russian Federation
119991, Moscow, Leninsky prospect, 65
Russian Federation
119991, Moscow, Leninsky prospect, 65
M. M. Volkova
V.I. Vernadsky Institute of Geochemistry and Analytical Chemistry RAS
Russian Federation
119991, Moscow, Kosygin st., 19
Russian Federation
119991, Moscow, Kosygin st., 19
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Review
For citations:
Nagornaya E.V., Baksheev I.A., Anosova M.O., Komarova M.M., Khabibullina Yu.N., Yapaskurt V.O., Kozionov A.E., Volkova M.M. Scheelite from Kekura gold deposit, Western Chukchi peninsula: Trace elements and fluid Inclusions. Moscow University Bulletin. Series 4. Geology. 2020;(1):51-59. (In Russ.) https://doi.org/10.33623/0579-9406-2020-1-51-59
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