The Composition of the Ore-Forming Fluid and Physicochemical Parameters of the Formation of Economic Ores of the Malmyzh Au-Cu Porphyry Deposit, Far East, Russia: An Example of the Svoboda Ore Area

被引：0
|
作者：
Svistunov, V. V. [1 ]
Prokof'ev, V. Yu. [2 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia
[2] Russian Acad Sci, Inst Geol Ore Deposits Petrog Mineral & Geochem, Moscow 119017, Russia
来源：
MOSCOW UNIVERSITY GEOLOGY BULLETIN | 2021年 / 76卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
porphyry deposits; gold; copper; fluid inclusions; temperature; salinity; pressure; depth; BINGHAM; PRESSURE;
D O I：
10.3103/S0145875221020125
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Fluid inclusions were studied in quartz from economic ores of the Svoboda area, which is one of the main economic areas of the Malmyzh Au-Cu porphyry deposit. The economic Au-Cu mineralization of the deposit formed mostly from chloride fluid. The main physicochemical parameters of the ore-forming include a temperature of 250-350 degrees C, a salinity of 0.8-48.0 wt % NaCl equiv., and a pressure of 15-62 MPa. The calculations of the pressure of ore-forming fluid indicate the depth of the formation of ore mineralization in a range of 1.5-2.4 km and a 900 m ascent of the ore-hosted block during ore deposition. Our data can be used during prospecting and exploration works at Au-Cu porphyry deposits.
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页码：155 / 162
页数：8
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