| 准噶尔盆地中拐地区石炭-二叠系火山岩地球化学特征 |
| |
| 引用本文： | 孙国强,姚卫江,张顺存,邢承智,史基安,李兵. 准噶尔盆地中拐地区石炭-二叠系火山岩地球化学特征[J]. 新疆石油地质, 2011, 32(6): 580-582 |
| |
| 作者姓名： | 孙国强 姚卫江 张顺存 邢承智 史基安 李兵 |
| |
| 作者单位： | 1.中国科学院油气资源研究重点实验室,兰州 730000;2.中国石油新疆油田分公司勘探开发研究院地球物理研究所,乌鲁木齐 830011 |
| |
| 基金项目： | 国家科技重大专项(2008ZX05008-003) |
| |
| 摘 要： | 通过对准噶尔盆地西北缘中拐地区石炭-二叠系25 个火山岩岩心样品的全岩元素分析表明,研究区火山岩岩性主要为中-酸性的安山岩、英安岩、流纹岩、火山角砾岩和凝灰岩,其中SiO2的含量普遍较高,平均达到66.840%.该区石炭-二叠系火山岩是以钙性和钙碱性系列为主,其中有64%属于钙性系列,36%为钙碱系列。根据研究区火山岩的地球化学特征,判定其喷发环境应位于岛弧体系的大陆内侧,在喷发过程中经历过陆壳的熔融作用。
|
| 关 键 词： | 准噶尔盆地 石炭系 二叠系 火山岩 构造 地球化学 |
| 收稿时间： | 2010-12-14 |
Geochemical Characteristics of Carboniferous-Permian Volcanic Rocks in Zhongguai Area in Northwestern Margin of Junggar Basin |
| |
| SUN Guo-qiang,YAO Wei-jiang,ZHANG Shun-cun,XING Cheng-zhi,SHI Ji-an,LI Bing. Geochemical Characteristics of Carboniferous-Permian Volcanic Rocks in Zhongguai Area in Northwestern Margin of Junggar Basin[J]. Xinjiang Petroleum Geology, 2011, 32(6): 580-582 |
| |
| Authors: | SUN Guo-qiang YAO Wei-jiang ZHANG Shun-cun XING Cheng-zhi SHI Ji-an LI Bing |
| |
| Affiliation: | 1. Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;2. Institute of Geophysics, Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Urumqi, Xinjiang 830013, China |
| |
| Abstract: | The analyses of the whole-rock elements of 25 samples from Carboniferous-Permian volcanic rocks in Zhongguai area in northwestern margin of Junggar basin reveal that the volcanic rocks are mainly composed of intermediate-acid andesite,dacite,rhyolite,volcanic breccia and tuff,of which SiO2 content averages 66.840%,and they are dominated by calcic series and calc-alkalic series(calcic series accounts for 64% and calc-alkalic series for 36%).According to the geochemical characteristics of the volcanic rocks i... |
| |
| Keywords: | Junggar basin Carboniferous Permian volcanic rock structure geochemistry |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《新疆石油地质》浏览原始摘要信息 |
|
点击此处可从《新疆石油地质》下载全文 |
|
