Petrological and Geochemical Characteristics and Significance of the Granitic Intrusion in the Dacaoping Mo Deposit, Fengning County, Hebei Province
详细信息
- 责任者：Wang Yanhui (TIanjin North China Geological Exploration Bureau ; Tianjin 300170 ; China)
- 刊名：Geological Survey and Research
- 出版年：2013
- 卷期：36(2)
- 关键词：花岗岩 ; granite ; 花岗闪长岩 ; granodiorites ; 河北 ; Hebei Province
- 页码：p.104-113
- 图表：11 illus., 8 tables, 11 refs.
- 分类号：0801
- issnNo：ISSN1672-4135
- isbnNo：CN12-1353/P
摘要
The Dacaoping intrusion is composed of granite and granodiorite bodies,and the former intrudes in the latter.Qartz veins and molybdenum mineralization can be seen in the contact zone.The granite and granodiorite have the similar geochemical characteristics.The major elements are rich in silicon and alkali,generally with a high potassium content.They belong mainly to calc-alkaline series.Chondrite normalized patterns show that the both rocks enrich light rare earth elements(LREE),chondrite-nomalized curves are tilted to the right consistently,and the curves are nearly parallel to each other.The characteristics above suggest that the both rocks are homology.All this showing that the rocks are from I-type granite which come from the mixing of shell and mantle,and the tectonic environment of the rocks is orogenic environment.The rocks and ore bodies have homologous differentiation obviously,the rocks can provide ore-forming materials for the molybdenum ore.
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