Study on the metallogenic models of off-shore diamond placer in the Changxing island,Liaoning province

Diamond is an important mineral resource which has great industrial and economical values.There are many kimberlite primary deposit,only a few small and medium diamond placers near the primary deposit,in Liaoning Province.This paper discusses the source supply and the mineralization model of diamond placer under the influence of tectonic movement and sea-level change,summarizes three kindes of mineralization model.That can provied reference for future work that prospecting diamond placer.