Detrital Zircon U-Pb Geochronology： New Insight into the Provenance of Sanya Formation in the Yinggehai Basin

摘要

Objective The NNW-SSE trending Yinggehai Basin,located on the continental shelf at water depths of 50-200 m in the northwestern South China Sea,is a Cenozoic conversion extensional basin.Over the past decades,a number of hydrocarbon reservoirs have been discovered in the deepwater area of the basin,including the Lingtou Formation(Eocene),Yacheng and Lingshui