Analysis of Geological Characteristics and Genesis of Deposit of a Gypsum Deposit in Yanchi County,Ningxia
Ningxia Yanchi gypsum ore occurs in the middle of the second lithological member of the Qingshuiying formation of the Paleogene Oligocene.Only layer of gypsum ore was found in the study area which is about 1614～2260m from east to west and about 650～1100m from north to south.The average grade of gypsum and anhydrite is 69.51%.The natural gypsum mine in Yanchi,Ningxia,is favored by the market for its advantages of shallow burial,large thickness,high quality and good mining technical conditions.Based on the geological exploration results of a gypsum deposit in Yanchi county,Ningxia,this paper summarizes the regional geological background,geological characteristics of the deposit and geological characteristics of ore body,and analyzes the genesis of the deposit by studying the source of metallogenic materials,metallogenic paleoclimate,paleogeography and formation mechanism of gypsum rock,in order to provide reference for the development and utilization of the deposit.
Yanchi,Ningxiagypsum minesgeological featuresgenesis of deposit
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