%0 Journal Article
%T THE RECOGNITION OF ORIGINAL ROCKS OF FELSIC METAMORPHIC ROCKS IN GUANGCHANGLING ARCHEAN BANDED IRON FORMATION AND STRATIGRAPHIC IMPLICATION<br>弓长岭太古代条带状硅铁建造中长英质变质岩的原岩恢复及地层学意义
%A Li Shuguang Lin Shudao Li Binxian Gu Jingfei Zhang Xun Gao Weimin Znang Lida Jin Mingliang
%A <br>李曙光
%A 林树道
%J 岩石学报
%D 1989
%I 
%X This study recognized that original rocks of the felsic metamorphic rocks from a key horizon (termed K and K_S) in Guangchangling Archean Banded Iron Formation are tuffaceous intermediate acidic volcanic lava for biotite-quartz-albite gneiss (K) and tuffaceous sedimentary rock for garnet-mica-quartz schist (K_S) respectively.Therefore, K and K_S can not be the same horizon. According to this and some new stratigraphic sections, the stratigraphic section for Guangchangling Archean Banded Iron Formation was renewed. It suggests that this banded iron formation was developed in a shallow sea environment on a continental shelf and the iron ore beds are in mid-upper part of the transgressive series. The characteristics of sedimentary rock association of Guangchangling Banded Iron Formation are different from that of greenstone belt and similar to that of typical supracrustal rocks in high-grade terranes.
%K Recognition of original rock
%K Archean
%K Felsic metamorphic rocks
%K Sedimentary environment of banded iron formation<br>原岩恢复
%K 太古代
%K 长英质变质岩
%K 条带状硅铁建造
%K 沉积环境
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=88FD2FB145A4E80E55EE57C84D3135D0&yid=1833A6AA51F779C1&vid=94C357A881DFC066&iid=38B194292C032A66&sid=5C3443B19473A746&eid=80A07035DF96B0C4&journal_id=1000-0569&journal_name=岩石学报&referenced_num=0&reference_num=5