Title: Geology and Metallogenesis of the Zhaokalong Iron-Copper-Polymetallic Ore Deposit in Yushu,Qinghai Province
Abstract: The Zhaokalong iron-copper-polymetallic deposit was produced in the back-arc rift sedimentary basin during the late Triassic,with mineralization of iron,copper,gold,lead,zinc and other metallic ores.Ore bodies lie in the clastic rock of the upper Batang Group of Triassic,strictly controlled by the stratigraphy and lithology.The ore(body) group is divided into several different belts according to the ore body distribution.Volcanic eruptions(andesite) provided the material sources and heat for the mineralization.Volcanic rocks in the same period have the characteristics of high Al-Na and low K,and belong to the andesite-tholeiite type.It has the characteristics of island arc andesite,but the chemical analysis of the data reveals the greater depth of magma source,implying that it was also associated with a back-arc spreading rift zone.According to the generation environment of the deposit,the classification of volcanic rocks,structural characteristics of ore bodies and the ore occurrence form,it can be preliminarily concluded that this deposit is an iron oxide-sulfide iron-copper-polymetallic deposit related to seafloor exhalation.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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