A tentative discussion on the variation of selenium isotopes in black shale of Niutitang Formation,Zunyi,Guizhou Province,and its implications for depositional environment;

A discussion on Mo isotopic compositions of black shale and Ni-Mo sulfide bed in the early Cambrian Niutitang Formation in south China;

Geochemical Characteristics and Formation Environment of the Niutitang Formation in the North Guizhou;

Distribution characteristics and controlling factors of Upper Triassic Ma antang Formation in the front of Longmen Mountians,Sichuan,China;

The age of the Shuangbaotang Formation in the Tianshuijing-Qingshan area,Beishan Mountains,western Inner Mongolia,China;

Researches on Sequences Stratigraphy of Donghetang Formation in Tarim Basin;