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幼苗
共回答了23个问题采纳率:78.3% 举报
Yanzi Dong deposit is located in northern Yunnan Lanping County,mountain ash mining area,is part of Lanping basin.(Through the deposit,geological,geochemical characteristics of the study,could be the following conclusions:
1,mineralization to the Mesozoic marine continental transition to the construction of the carbonate rocks,volcanic rocks construction folder-based construction,Himalayan tectonic Nappe and hydrothermal into a leading role.
2,according to the sulphur ore,lead isotope analysis results reflect a deep source of minerals with characteristic sulphur ore with the characteristics of the deep sulfur,lead for the crust and mantle mixed lead.Deposit mineralization occurred in the open system,a source of minerals for the deep mantle material,mixed shell source material.
3,because the deposit into the crust deep in the epithermal copper-silver deposit,for the period of mineralization Himalayan; mineralization:in the long-term,multi-phase construction of deep crustal movement and the role of hydrothermal circulation,or rock formation Mineralization in the activation of elements that were transferred to solution,and the rich hydrothermal mineralization integrated,long-term activities of the deep fault structure will be shallow hydrothermal-oriented,structural favorable position in the targeted mineralization.
4,gray-mining area genesis of a type of sedimentary type,sedimentary,hydrothermal type.One Yanzi Dong Silver-copper deposit is a typical metal deposition of deposit.
5,Lanping basin within the broader development of the foreland thrust structure of the ash-mine ore deposit and the outputs are obvious control.
Key words:Lanping basin,before landing thrust structure,as minerals,ore-control role
1年前
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