Lithodemic Units of Mesozoic Intrusive Rocks in
详细信息
- 责任者：Chen Xiaolin (Hubei Institute of Geological Survey ; Wuhan 430022 ; China) ; Huang Xiangzhi
- 刊名：Resources Environment & Engineering
- 出版年：2010
- 卷期：24(4)
- 关键词：I型花岗岩 ; I-type granite ; 岩石谱系单位 ; lithodemic units ; 桐柏山 ; Tongbai Mountains ; 大别山 ; Dabie Mountains
- 页码：p.341-347,358
- 图表：3 illus., 2 tables, 11 refs.
- 分类号：0801
- issnNo：ISSN1671-1211
- isbnNo：CN42-1736/X
摘要
Intrusion isotopic ages were 120 Ma, those of the Cretaceous era. Intrusive rocks are mostly incompatible intrusive contact with wall rock. Beveling intrusive contact is between the super-unit and sequence, each unit of super-unit elements is surge intrusive contact or pulsating intrusive contact. Emplacement mechanisms are mostly strong, they were round or elliptical in the plane, with concentric ring structure. Emplacement model is dominated by expansion of thermal light balloons, controlled by faults or along the two faults composite parts in place. Petrochemistry shows the calc-alkaline→alkaline series, weak aluminum→peraluminous series, which constitutes the super-cell system of sequence evolution.