论文部分内容阅读
Samples were collected from the Selong-Xishan Permian/Triassic boundary strata,Nyalam County in southern Tibet and systematically analyzed for their rare-searth elements(REE)and trace elements such as U, Th, Sr, Ba, Sc, Ta, Hf, Rb, Cs, Co, Ni, Cr, As andothers with emphasis put on the distribution patterns of rare-earth elements and the variation oftrace element contents along the Permian/Triassic boundary section. On this basis a discussionwill be made of the paleo-ocean depositional environment.
Samples were collected from the Selong-Xishan Permian / Triassic boundary strata, Nyalam County in southern Tibet and systematically analyzed for their rare-searth elements (REE) and trace elements such as U, Th, Sr, Ba, Sc, Ta, Hf, Rb, Cs, Co, Ni, Cr, As andothers with emphasis put on the distribution patterns of rare-earth elements and the variation oftrace element contents along the Permian / Triassic boundary section. On this basis a discussionwill be made of the paleo-ocean depositional environment.