| 大兴安岭莫尔道嘎地区新元古代巨斑状碱长花岗岩地球化学特征 |
| |
| 引用本文： | 王忠,安春杰,邵军,孟二根,张明.大兴安岭莫尔道嘎地区新元古代巨斑状碱长花岗岩地球化学特征[J].地质与资源,2005,14(3):187-191. |
| |
| 作者姓名： | 王忠 安春杰 邵军 孟二根 张明 |
| |
| 作者单位： | 1. 内蒙古自治区地质调査院, 内蒙古呼和浩特 010020;2. 沈阳地质矿产研究所, 辽宁沈阳 110032 |
| |
| 摘 要： | 莫尔道嘎地区巨斑状碱长花岗岩是额尔古纳地块最早的岩浆活动的产物.对巨斑状碱长花岗岩的地质学、岩石地球化学特征进行了阐述,确定岩体形成于新元古代,属同碰撞期陆壳改造型钙碱性花岗岩.认为自新元古代开始,额尔古纳地块进入了强烈碰撞增生演化阶段.
|
| 关 键 词： | 巨斑状碱长花岗岩 同碰撞期 新元古代 额尔古纳地块 莫尔道嘎地区 |
| 文章编号： | 1671-1947（2005）03-0187-05 |
| 收稿时间： | 2004-12-01 |
| 修稿时间： | 2005-03-22 |
GEOCHEMICAL CHARACTERISTICS OF NEOPROTEROZOIC LARGE-PORPHYRITIC ALKALI-FELDSPAR GRANITE IN MORDAGA AREA |
| |
| WANG Zhong,AN Chun-jie,SHAO Jun,MENG Er-gen,ZHANG Ming.GEOCHEMICAL CHARACTERISTICS OF NEOPROTEROZOIC LARGE-PORPHYRITIC ALKALI-FELDSPAR GRANITE IN MORDAGA AREA[J].Geology and Resources,2005,14(3):187-191. |
| |
| Authors: | WANG Zhong AN Chun-jie SHAO Jun MENG Er-gen ZHANG Ming |
| |
| Institution: | 1. Inner Mongolian Institute of Geological Survey, Hohhot 010020, China;2. Shenyang Institute of Geology and Mineral Resource, Shenyang 110033, China |
| |
| Abstract: | The large-porphyritic alkali-feldspar granite in Mordaga area is the product of the first magmatic activity of Ergun block. Study on the geological and geochemical characteristics of the large-porphyritic alkali-feldspar granite shows that the batholith was formed in Neoproterozoic Era during the continental crust evolution in syn-collision setting. From then on, the Ergun block started its intense collision-accretion period. |
| |
| Keywords: | large-porphyritic alkali-feldspar granite syn-collision stage Neoproterozoic Ergun block Mordaga area |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质与资源》浏览原始摘要信息 |
| 点击此处可从《地质与资源》下载免费的PDF全文 |
