Metallogenic Features of the Andean Volcanic Belt in Peru in the Light of Satellite Data on the Deep Crustal and Upper Mantle Structure

被引:0
|
作者
Savchuk, Yu. S. [1 ]
Volkov, A. V. [1 ]
Galyamov, A. L. [1 ]
机构
[1] Russian Acad Sci, Inst Geol Ore Deposits Petrog Mineral & Geochem, Moscow 119017, Russia
关键词
Andes; Peru; IOCG-type; epithermal; copper-porphyry; polymetallic; Moho; upper mantle; GOLD; DEPOSITS;
D O I
10.1134/S0742046321050055
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
The Peruvian part of the Andean volcanic belt (AVB) is characterized by significant mineralization. There are explored Au-Ag epithermal, Cu-porphyry, skarn, Fe-oxide (IOCG-type) and polymetallic deposits. The metallogeny of the AVB is determined by the subduction process, i.e., the underthrusting of the Nazca oceanic plate under the margin of the South American continent. The AVB metallogeny is considered on the basis of modern geophysical studies of the lithosphere using data from the GOCE satellite: the gravity field, the Moho surface, and the thermal regime of the upper mantle. The anomaly in the linear distribution of ore objects in the southeast of the studied area of the AVB is apparently due to the influence of the "hot spot" on the composition of magmatic formations and ore-bearing solutions, and IOCG-type objects can be indicators of such environments.
引用
收藏
页码:365 / 372
页数:8
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