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Temporo‐Spatial Distribution and Evolution of Ore Deposits in the West Sector of the Northern Qilian Mountains
Author(s) -
Jingwen MAO,
Xiaoyu ZHANG,
Zhaochong ZHANG,
Fengshou REN,
Guochao ZUO,
Zuoheng ZHANG,
Jianmin YANG,
Zhiliang WANG,
Dejin YE
Publication year - 1999
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.1999.tb00831.x
Subject(s) - mineralization (soil science) , prospecting , geology , geochemistry , tectonics , shear zone , spatial distribution , mineralogy , paleontology , soil science , remote sensing , soil water
The west sector of the northern Qilian Mountains is well‐known for the Jingtieshan‐type iron deposits. A new breakthrough has been made in prospecting for gold and copper in recent years. In this paper, the distribution characteristics of ore deposits in the study area are discussed from the viewpoint of tectonic evolution. It is suggested that there are 9 stages of mineralization from the Palaeoproterozoic to Indosinian. Four minerogenetic series and two minerogenetic subseries of ore deposits are recognized. Iron mineralization occurred in several stages, while most of the metals were accumulated in large amounts in the Caledonian. The enrichment and mineralization of gold is related to large‐scale shear‐strike‐slip faults and the ascent and unloading of deep‐seated fluids.