• 责任者：Zhang Dong (Gold Geological Institute ; CAPF ; Langfang 065000 ; China) ; Fan Junjie
• 刊名：Journal of Mineralogy and Petrology
• 出版年：2013
• 卷期：33(4)
• 页码：p.61-67
• issnNo：ISSN1001-6872
• isbnNo：CN51-1143/TD

The porphyry-type Songkaersu Cu-Au deposit occurred in Carboniferous continental volcanic belt of Karamaili and related to the continental volcanic-intrusive rocks. Mineralization mainly takes place in the contact zone of granite porphyry. In order to obtain the metallogenic time,the sericites separated from the phyllic zone of the altered granite porphyry was measure. The ^40Ar-^39Ar analysis of plateau age and isochron age yield （338.6±2.2） Ma and （341.5±3.9） Ma,respectively. The former represents the ore-forming age. It is suggested that the porphyry- type metallogenesis in the Songkaersu deposit took place in Early Carboniferous,which is consist- ent with the ages of the continental volcanic-intrusive rocks and the epithermal Au mineralization in the adjacent regions. It reveals that the Songkaersu porphyry Cu-Au deposit and the epithermal Au deposits were formed in the same magma-fluid mineralization system controlled by extrusion- extension conversion period in post collision environment.