GEOLOGICAL CHARACTERISTICS OF THE HEHUAPING TIN POLYMETALLIC DEPOSIT IN CHENZHOU,HUNAN PROVINCE
WU Shou-ning
Abstract
WU Shou-ning
Abstract
The relationship of ore deposit with strata,structure and magmatic rocks in the region was analyzed in the paper,which shows that the favorable ore bearing stratum in ore field is impurity limestone on the bottom of Middle Devonian Qizhiqiao group when NE trending ore forming structure developed with strong Yanshanian granite magma activities and the geology was favorable for ore forming.The Hehua tin Polymetallic ore deposit types were divided into three types of ore deposit,namely skarn-cassiterite sulphide type,crush zone altered rock type and altered granitic porphyry type,in which the stratiform skarn-cassiterite sulphide type of deposit in impurity limestone on bottom of middle Devonian epoch is promising for further ore prospecting.
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The relationship of ore deposit with strata,structure and magmatic rocks in the region was analyzed in the paper,which shows that the favorable ore bearing stratum in ore field is impurity limestone on the bottom of Middle Devonian Qizhiqiao group when NE trending ore forming structure developed with strong Yanshanian granite magma activities and the geology was favorable for ore forming.The Hehua tin Polymetallic ore deposit types were divided into three types of ore deposit,namely skarn-cassiterite sulphide type,crush zone altered rock type and altered granitic porphyry type,in which the stratiform skarn-cassiterite sulphide type of deposit in impurity limestone on bottom of middle Devonian epoch is promising for further ore prospecting.
Key concepts: Cassiterite, Geology, Skarn, Prospecting, Geochemistry, Devonian, Polymetallic replacement deposit, Ore genesis