Zircon U-Pb Dating and Geochemistry of the Linong Granitoid and Its Relationship to Cu Mineralization in the Yangla Copper Deposit, Yunnan, China

Abstract

The Yangla copper deposit (Cu reserves: 1.2Mt) in the Jinshajiang-Lancangjiang-Nujiang region in China is spatially associated with the Linong granitoid. Zircon U-Pb dating shows the granitoid formed at 234.1 ± 1.2 to 235.6 ± 1.2Ma, and the KT2 ore body of the deposit yields a molybdenite Re-Os model age of 230.9 ± 3.2Ma. The ages of mineralization and crystallization of the granitoid are identical within the measurement uncertainties, suggesting the Yangla deposit is genitically related to the Indosinian Linong granitoid. Copyright © 2013 The Society of Resource Geology 63 2 April 2013 10.1111/rge.12006 Short Communication Short Communication © 2013 The Authors; Resource Geology © 2013 The Society of Resource Geology.