A typical alkaline rock-carbonatite complex in Bayan Obo, Inner Mongolia, China

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Authors:Wang Xibin; Hao Ziguo; Li Zhen; Xiao Guowang
Author Affiliations:Primary:
Chinese Academy of Geological Sciences, Institute of Geology, Beijing, China
Beijing University, China
Bayan Obo Iron Mine, China
Volume Title:Dizhixue Bao Acta Geologica Sinica
Source:Dizhixue Bao = Acta Geologica Sinica, 76(4), p.501-524. Publisher: Science Press, Beijing, China. ISSN: 0001-5717
Publication Date:2002
Note:In Chinese with English summary. 84 refs.; illus., incl. 14 tables, 2 plates
Summary:In the Bayan Obo area, there is a unique large rock complex composed of an alkaline-carbonatite complex (H8), carbonatite dykes, sedimentary-volcanic series (H9), shallow intermediate-basic dykes, and breccia peridotite. The carbonate (H8), the host rock of the giant Bayan Obo Nb-Fe-REE deposit, has long been erroenously assumed to be sedimentary dolomites. A comprehensive comparative study suggests that the carbonatite is quite similar to the igneous carbonatite dykes in this region and other carbonatites in the rest of the world, and quite different from the micrite mound at Sailinhuodong and dolomite in the typical sedimentary section. [R.A.H.]
Subsections:Igneous petrology
Subjects:Alkalic composition; Carbonatites; Complexes; Dikes; Giant deposits; Host rocks; Igneous rocks; Intrusions; Iron ores; Magmatism; Metal ores; Niobium ores; Rare earth deposits; Asia; Bayan Obo China; China; Far East; Inner Mongolia China; Bayan Obo Deposit
Coordinates:N414600 N414600 E1095800 E1095800
Abstract Numbers:03M/2094
Record ID:2010024879
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data supplied by National Geological Library, Beijing, China
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