Discussion on minerogenetic series of Mesozoic granites in Southern China

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Authors:Zhang Chongzhen
Volume Title:Mineral Deposits Kuangchuang Dizhi
Source:Mineral Deposits = Kuangchuang Dizhi, 2(1), p.38-47. Publisher: Chinese Academy of Geological Sciences, Institute of Mineral Deposits, Beijing, China. ISSN: 0258-7106
Publication Date:1983
Note:In Chinese with English summary. 13 refs.; illus. incl. 3 tables
Summary:These Mesozoic granitic rocks and their related ore deposits are divided into a granodiorite porphyry and a granite series, in which marked differences are discerned. Observation and analysis at Mine 414, Xihuasan and some other typical orefields suggest that the ore deposits are related to the Mesozoic granite and occur in groups rather than in isolation. They are closely linked with the evolution of the same magma reservoir. If highly evolved magma intruded the Upper Palaeozoic carbonate formation, confined by a relatively closed structural condition, disseminated REE, Nb, Ta, W, Sn and other mineralizations of the granite type were likely to form within the intrusion. When the magma evolved to the post-magma stage and the structure opened, mineralization of W, Be, Mo and Bi of skarn type, ribbon rock type and quartz vein type would probably occur in the exocontact zone, and stratoid W and polymetallic mineralization of disseminated type at some distance from the intrusion. [P.Br.]
Subjects:Economic geology; Granodiorite porphyry; Granodiorites; Igneous rocks; Mesozoic; Mineral deposits, genesis; Mineral resources; Petrology; Plutonic rocks; Asia; China; Far East; Igneous processes; Southern China
Coordinates:N200000 N350000 E1220000 E0783000
Abstract Numbers:84M/1427
Record ID:1985061529
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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