STUDIES ON Sm AND Nd ISOTOPIC SIGNATURES IN FOSSILS IN CAMBRIAN-ORDOVICIAN BOUNDARY STRATA OF DAYANGCHA SECTION, JILIN, CHINA
Institution:
YANG JIE-DONG WANG YIN-XI (Center of Modern Analysis, Nanjing University) AND WANG ZONG-ZHE(Nanjing Institute of Geology and Palaeontology, Academia Sinica)