Dating of sediment-hosted disseminated-type gold deposit by using [sup40]Ar/[sup39]Ar laser probe: A case study of Changkeng large-scale gold deposit, China.

Discusses how the hydrotherman clay minerals that formed in the main metallogenic stage of the Changkeng disseminated-type gold deposit in central Guangdong were analyzed by a laser probe. Consideration of how the results give Ar-Ar isochron ages of 109.9 &plusmn, 1.4 to 110.1 &plusmn, and 1.3 Ma, which are 30 to 50 Ma older than the age of silver ore bodies in the deposit; How both gold and silver mineralizations were not related to hidden granite batholith in the mining district; Reference to how the study shows that the laser probe is a sound datin tool applicable to sediment-hosted disseminated-type gold deposit.