Composition of Fluids Responsible for Gold Mineralization in the Pechenga Structure of the Pechenga-Imandra-Varzuga Greenstone Belt, Kola Peninsula, Russia

被引：7
|
作者：
Prokofiev, V. Yu. [1 ]
Kalinin, A. A. [2 ]
Lobanov, K. V. [1 ]
Banks, D. A. [3 ]
Borovikov, A. A. [4 ]
Chicherov, M. V. [1 ]
机构：
[1] Russian Acad Sci, Inst Geol Ore Deposits Petrog Mineral & Geochem, Moscow 119017, Russia
[2] Russian Acad Sci, Geol Inst, Kola Sci Ctr, Apatity 184209, Murmansk Oblast, Russia
[3] Univ Leeds, Sch Earth & Environm, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
[4] Russian Acad Sci, Siberian Branch, Inst Mineral & Petrog, Novosibirsk 630090, Russia
来源：
GEOLOGY OF ORE DEPOSITS | 2018年 / 60卷 / 04期
基金：
俄罗斯基础研究基金会;
关键词：
gold deposits; fluid inclusions; physicochemical parameters; mineral-forming fluids; Pechenga; DEPOSITS;
D O I：
10.1134/S1075701518040037
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
This study presents the first fluid inclusion data from quartz of albite-carbonate-quartz altered rocks and metasomatic quartzite hosting gold mineralization in the Pechenga structure of the Pechenga-Imandra-Varzuga greenstone belt. A temperature of 275-370 degrees C, pressure of 1.2-4.5 kbar, and the fluid composition of gold-bearing fluid are estimated by microthermometry, Raman spectroscopy, and LA-ICP-MS of individual fluid inclusions, as well as by bulk chemical analyses of fluid inclusions. In particular, the Au and Ag concentrations have been determined in fluid inclusions. It is shown that albite-carbonate-quartz altered rocks and metasomatic quartzite interacted with fluids of similar chemical composition but under different physicochemical conditions. It is concluded that the gold-bearing fluid in the Pechenga structure is similar to that of orogenic gold deposits.
引用
收藏
页码：277 / 299
页数：23
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