| 西准噶尔包古图地区岩体三维电性及深部结构特征 |
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| 引用本文： | 杨龙彬,张胜业,雷胜兰,张玲玲,鲁 杏,程怀蒙,杜振华,刘文才.西准噶尔包古图地区岩体三维电性及深部结构特征[J].地球科学,2014,39(5):629-636. |
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| 作者姓名： | 杨龙彬 张胜业 雷胜兰 张玲玲 鲁 杏 程怀蒙 杜振华 刘文才 |
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| 作者单位： | 中国地质大学地球物理与空间信息学院，武汉 430074 |
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| 基金项目： | 西准噶尔克拉玛依后山地区深部地质调查(No.1212011220245) |
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| 摘 要： | 为探明西准噶尔包古图地区地下电性特征及两块露头岩体深部结构关系，采用音频大地电磁测深对该地区进行了三维性质的地质填图勘探.将二维OCCAM反演得到的电性结构结果以三维形式成图，从多角度展示了该地区地下电性特征，并发现两块目标岩体在深部构造上由通道相连.经推断是在石炭系希贝库拉斯组、包古图组、泰勒古拉组等地层组成的背斜形成后，由于岩浆运动上侵在与斑岩体对流时冷却产生热机械能，从而导致破裂裂隙在岩体、围岩之中产生裂隙构造组合，热液通过这些通道而形成包古图岩体.
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| 关 键 词： | 包古图 音频大地电磁 OCCAM反演 三维电性结构图 电磁勘探 |
| 收稿时间： | 2013-04-22 |
Three-Dimensional Electrical and Deep Structure Features in Baogutu Area of Western Junggar |
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| Abstract: | Audio magnetotelluric sounding is used in this study for geological mapping exploration of three-dimensional nature to determine the underground electrical characteristics and relationship of deep structure of two outcrops of rock mass in Baogutu area of Western Junggar The two-dimensional OCCAM inversion electric structure results in the form of three-dimensional mapping, displaying the underground electrical characteristics from various angles. Two pieces of rock mass in the deep structure are found to be connected by channels. It is concluded that the mechanical energy generated in the cooling process of magma intrusion and porphyry convection led to fissures in the rock mass, which in turn led to structural fissures after the formation of anticline in Carboniferous Siebel Kuras Group, Baogutu Group, and Tailegula Group, because of the movement of cooling thermal and, thus causing, rock combination of cracks, Baogutu rock formed eventually when hydrothemal moved through these channels. |
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