| 石渠－甘孜－雅江重力正异常带的特征及其地质意义 |
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| 引用本文： | 曹树恒.石渠－甘孜－雅江重力正异常带的特征及其地质意义[J].四川地质学报,1994(1). |
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| 作者姓名： | 曹树恒 |
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| 作者单位： | 四川省地矿局物探队 |
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| 摘 要： | 综合区域地质、岩石物性和航磁资料的分析，认为石渠－甘孜－雅江剩余布格重力正异常带可能是被“挤入”西康群之下、埋藏于深部的前古生代离散陆块与二叠纪玄武岩及“义敦群”存在的综合反映。该异常带的连续延伸，说明甘孜－理塘构造带南段的主体部分已由北西转至南西走向。该重力异常带位置是重要而明显的构造分区界线。
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| 关 键 词： | 重力正异常带，密度层，构造分界线 |
CHARACTERISTICS OF SHIQU-GARZE-YAJIANG POSSITIVE GRAVITY ANOMALY ZONE AND ITS GEOLOGICAL IMPLICATION |
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| Cao Shuheng.CHARACTERISTICS OF SHIQU-GARZE-YAJIANG POSSITIVE GRAVITY ANOMALY ZONE AND ITS GEOLOGICAL IMPLICATION[J].Acta Geologica Sichuan,1994(1). |
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| Authors: | Cao Shuheng |
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| Abstract: | A synthetical analysis of data on regional geology,physical property of rocks and aeromagnetic anomaly indicates that Shiqu-Garze-Yajiang residual Bougeur anomaly may result form the Prepaleozoic divergent landmass,Permian basalt and Yidun Group which subducted under the Xikang Group.Trend of the anomaly zone representing a regional structural boundary is a reflection of turning(from NW to SW) of the southern district of Garze-Litang structural zone. |
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| Keywords: | possitive gravity anomaly zone density layering regional structural boundary |
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