Metallogenesis of the Au-Ag Middle Palaeozoic Kedon Volcanic Belt of the Omolon Cratonic Terrane (Northeast Russia)

被引：0

作者：

Volkov, A. V. ^{[1
]}

Sidorov, A. A. ^{[1
]}

Alexeev, V. Yu ^{[1
]}

Savva, N. E. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Geol Ore Deposits Petrog Mineral & Geochem, Moscow, Russia

[2] Russian Acad Sci, Northeastern Interdisciplinary Res Inst, Far East Div, Magadan 685010, Russia

来源：

MINERAL DEPOSIT RESEARCH FOR A HIGH-TECH WORLD, VOLS. 1-4 | 2013年

关键词：

Volcanic belts; gold; silver; deposits; genetic features;

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Within the Omolon cratonic terrane the preaccretionary Kedon volcanic belt (KVB) is located, which was formed in the middle Paleozoic (D2-3) on the continental crust. This belt composed of subaerial volcanic rocks extending similar to 400 km. The Kedon part of KVB is characterized by lateral zoning: porphyry Cu mineralization in the east, intrusion related Au and epithermal Au-Ag in the central area, and Au-Ag bearing jasperoides in the west. The important features of the metallogeny of the KVB are as follows: an unusually low sulfide content of Au-Ag epithermal ores (<0.5%); wide development of Au-Ag mineralization in jasperoids; the occurrence of Cu-mineralization in intrusion related Au deposits; and the absence of Sn ore deposits.

引用

页码：1466 / +

页数：2