• 责任者：Shu Wulin (Key Laboratory of Orogenic Zone and Crustal Evolution ; MOE ; School of Earth and Space Sciences ; Peking University ; Beijing 100871 ; China) ; Hou Guiting
• 刊名：Acta Scientiarum Naturalium Universitatis Pekinensis
• 出版年：2011
• 卷期：47(6)
• 关键词：基性岩 ; basic rocks ; 岩墙群 ; dyke swarms ; 中条山 ; Zhongtiao Mountains
• 页码：p.1055-1062
• 图表：6 illus., 1 table, 21 refs.
• 分类号：0801
• 出版序号：20122313
• issnNo：ISSN0479-8023
• isbnNo：CN11-2442/N

Based on the petrographic and geochemical characteristics, petrogenesis of diabase dyke swarms in the southwestern area of Zhongtiao Mountains can be discussed in three groups. The results show that the basaltic magma was derived from partial melting of an enriched mantle. Group 1 directly came from initial mantle magma and experienced a small amount of fractional crystallization of mafic minerals. Groups 2 and 3 were derived from a mixing of the mantle and the crust magmas, which experienced fractional crystallization of plagioclase and Ti-Fe oxides. They were formed in the intraplate extensional environment, which might be related to the extension of the Xionger-Zhongtiao aulacogen.