| 内蒙古二连浩特——阿巴嘎旗北部宝力高庙组火山岩特征及构造背景 |
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| 引用本文： | 宝音乌力吉,赵文涛,包凤琴.内蒙古二连浩特——阿巴嘎旗北部宝力高庙组火山岩特征及构造背景[J].地质与资源,2013,22(5):355-359. |
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| 作者姓名： | 宝音乌力吉 赵文涛 包凤琴 |
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| 作者单位： | 内蒙古自治区地质调查院, 内蒙古 呼和浩特 010020 |
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| 基金项目： | 中国地质调查项目“内蒙古1∶25万二连浩特市等五幅区调”（编号200413000012）资助. |
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| 摘 要： | 通过对宝力高庙组火山岩的基本特征、岩石地球化学特征的系统研究，探讨了火山岩构造环境及构造背景.认为该组火山岩为钙碱性岩石系列，形成于挤压背景控制之下的同造山环境，形成背景为晚石炭纪强烈的弧-弧汇聚后碰撞造山过程中.由于西早东晚的剪刀式斜向汇聚作用，在北西-南东向的主压应力下，产生了北东向走滑断裂构造系统，为火山岩的形成提供了上升的通道和空间，在造山晚期伸展构造体制下产生了强烈的火山喷发.
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| 关 键 词： | 火山岩 钙碱性系列 构造背景 宝力高庙组 内蒙古 |
| 收稿时间： | 2012-03-12 |
CHARACTERISTICS AND TECTONIC SETTING OF THE BAOLIGAOMIAO VOLCANIC FORMATION IN NORTHERN ERENHOT-ABAGAQI,INNER MONGOLIA |
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| Baoyinwuliji,ZHAO Wen-tao,BAO Feng-qin.CHARACTERISTICS AND TECTONIC SETTING OF THE BAOLIGAOMIAO VOLCANIC FORMATION IN NORTHERN ERENHOT-ABAGAQI,INNER MONGOLIA[J].Geology and Resources,2013,22(5):355-359. |
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| Authors: | Baoyinwuliji ZHAO Wen-tao BAO Feng-qin |
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| Institution: | Inner Mongolia Institute of Geological Survey, Hohhot 010020, China |
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| Abstract: | With a systematic study on the basic characteristics, lithogeochemistry and tectonic setting of the volcanic rocks of Baoligaomiao Formation distributed in northern Erenhot-Abagaqi, Inner Mongolia, it is concluded that the volcanic rocks belong to cale-alkaline rock series, formed in synorogenic setting under the control of compression, during the Late Carboniferous orogenic process of intense arc-arc convergence-collision. Due to the oblique convergence effect in the west earlier and east later, the northeast-trending strike slip fault system emerges under the principal compressive stress from northwest to southeast, which provides rising channel and space for the formation of volcanic rocks and leads to strong volcanic eruptions in the extensional tectonic regime of late orogenic stage. |
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| Keywords: | volcanic rock calc-alkaline tectonic setting Baoligaomiao Formation Inner Mongolia |
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