The 2.2-2.1 Ga Magmatic Event and Its Tectonic Implication in the Lüliang Mountains, North China Craton
详细信息
- 责任者：Du Lilin (Institute of Geology ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Yang Chonghui
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(9)
- 关键词：火成岩 ; igneous rocks ; 构造演化 ; structural evolution ; 铀—铅计时 ; U-Pb dating ; 吕梁山 ; Lvliang Mountains
- 页码：p.2751-2769
- 图表：9 illus., 2 tables, 102 refs.
- 分类号：0801
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
GROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 12px/15px ����,verdana; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px">In this paper, the authors report Dujiagou feldspar porphyrite, intermediate basic volcanic rocks from the Jinzhouyu Formation of the Lüliang Group and Ehutan gneiss in Lüliang Mountains. Considering the tectonic setting of 2.2～2.0 Ga magmatic events in the North China Craton, the formation of the 2.2～2.1 Ga magmatic rocks is probably related to its tectonic position during the Paleoproterozoic, with Lüliang Mountains being located at the margin of the North China Craton. The 2.2～2.1 Ga magmatic rocks in the study area were formed in both island arc and rift regimes at about same time.