ON THE FEATURES,ORIGIN AND TIME OF THE GNEISS SUITE IN THE FUCHASHAN AREA OF ANHUI
TONG Jing-song, XU Wei (Anhui Academy of Geological Survey, Hefei 230001, China)
This paper, based on 1: 50000 scale geological mapping data, has systematically expounded the petrological, petrochemical and geochemical characteristics of a gneiss suite, a metamorphosed and deformed intrusive rock association emplaced into the Kanji and Feidong rock groups. It is affirmed to be a suite of cafe - alkaline series of cognate evolving sequence with its origin (magmatic source and structual setting, etc. ) and diagenetic time (formed in the Luliang period and was reworked by structural superimposed metamorphism in the Jinning period)being analyzed, providing an important geological basis for correct recognition of the early stage of evolution of the Wanzhong section of the Dabie - Sulu orogen.
【CateGory Index】： P588.345