The Study Of Metallogenic Model And Prospecting Pattern Of Hongtoushan-type Deposit

The Archean granite-greenstone terrain, which is recognized firstly as a greenstone belt in China, occurred extensively in Qingyuan of Liaoning province. As the terrain is famous for the occurrence of medium-large Hongtoushan mine, a typical copper-zinc volcanic-hosted massive sulphide (VMS) deposit in this terrain, it has become an important exploitation base of copper-zinc resources in Liaoning province. Hongtoushan copper deposit located in Fushun had been set up four producing pitheads in its about fifty-years history, however, three pitheads of Shujigou, Hongxin and Hongqi were closed down one after the other during the period of the 70's and 90's in the last century. At present, although the Hongtoushan pithead alone still survives, it is imperative to carry out research on successive resource prospecting in the depths and outskirts of the old mine since it is being gotten into an embarrassment of resources crisis. Therefore it is very realistic and necessary to study and summarize comprehensively the ore genesis of Hongtoushan-type deposit on geological, geophysical and geochemical characteristics and the metallogenic and ore-controlling regularity, to construct systematically metallogenic pattern and prospecting model, and further, to discuss the technological exploration methods for successive resources prospecting which aims at exploring the border, detecting the basement, prospecting the extension of the ore bodies and looking for the concealed ore bodies.Here are the main achievements of the dissertation:1. Based on the comprehensive analyses of the geological setting and temporal-spatial evolution of the Archean granite-greenstone terrain in Qingyuan area, the distribution characteristic, ore-forming type and subdivision of metallogenic belt of metal mineral resources in this terrain are summarized systematically.