Asian Gold Belt in western Tianshan and its dynamic setting,metallogenic control and exploration

In the western Tianshan,the giant and world-class gold deposits concentrating along the middle Tianshan and the both sides make up agiant gold metallogeny belt in the world,i.e.Asian Gold Belt,from Uzbekistan through Kyrgyzstan to western Xinjiang,China.Why the Asian Gold Belt was able to form along a zonal region of 2500km in WE-direction?What′s the dynamic setting and the key to the metallogeny?Whether the giant or world-class gold deposit can be discovered in western Xinjiang Tianshan although the most of them were found in Uzbekistan and Kyrgyzstan?All of these significant geological and exploration problems are paid much more attention.Based more on previous studies and on our present works,this research reviewed the dynamic setting and geological environments of the Asian Gold Belt and elementary characteristics of the gold deposits in the belt,analysed the metallogenic systems and their key controls,and realized the butt joint of the tectonic-and metallogenic-belts from western Xinjiang Tianshan through Kyrgyzstan to Uzbekistan.It was suggested that the producing,developing and closing of the Terskey and Turkestan-southern Tianshan oceans were the elementary dynamic setting of the Asian Gold Belt.There are two types of gold systems,i.e.orogenic gold and porphyry gold systems.The old crust,structure deformation and overprinting of magma hydrothermal fluid were the key to the orogenic gold mineralizations,and the matured arc,deep-source magma and long-living mineralization might be the key to the porphyry gold mineralization.The middle Tianshan is the core of the Asian Gold Belt and it is connected through by butted joint from Uzbekistan through Kyrgyzstan to western Xinjiang Tianshan,China.The Asian Gold Belt firmly enters into western Xinjiang Tianshan,China.The middle Tianshan and the both sides along Nalati-Erbin in western Xinjiang Tianshan shows a complete set of orogenic gold mineralization factors that are perfectly associated,where is hopefully to discover a giant or world-class gold deposit.

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