GRANITOIDS IN YUEXI OF EASTERN DABIE MOUNTAIN, CHINA

作     者：Jin Chengwei and Zheng Xiangsheng (Institute of Geology Chinese Academy of Sciences, Beijing 100029, China) 

出 版 物：《Scientia Geologica Sinica》 (地质科学(英文版))

年 卷 期：1998年第4期

页      面：551-557页

学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 

主　　题：ppm rock CHINA 

摘      要：A lot of acid intrusions occur in Yuexi and are intruded in the North Dabie metamorphic Complex. Theycomprise monzo granite-syen ogranlie, granodion ie -quartz monzo di on ie and alkali granit e. Petrographi caland geochemical study of them indicates they were formed in the post-orogenic regimes. It is worthy tomention that an undeformed body ofgranodiorite-quartz monzodiorite is metaluminous (A/CNK, 0.8-0.9)and exhibits a smaller Eu anomaly (Eu/Sm 0.31). All granitoids in Yuexi district have early Cretaceousages of emplacement and negative εNd(0) (- 17 -26). They are plotted as a horizontal zone on εNd,(0)- εSr(0)diagram, indicating these granitoids may be derived from a older earth crust.