| 桐柏-大别造山带的剪切带阵列 |
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| 引用本文： | 钟增球 索书田. 桐柏-大别造山带的剪切带阵列[J]. 地球科学, 1994, 19(4): 433-442 |
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| 作者姓名： | 钟增球 索书田 |
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| 作者单位： | 中国地质大学地质系 武汉430074 |
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| 基金项目： | 国家自然科学基金项目（No.49172090），地矿部定向基金项目（No.91—26）联合资助 |
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| 摘 要： | 桐柏－大别造山带在长期的韧性再造和脆性改造过程中，形成了有规律的剪切带阵列，包括韧性剪切带阵列和脆性剪切带阵列。它们是多期碰撞造山和造山期后伸展塌陷的产物，并在造山带的流变学和构造演化过程中起着重要的调整作用。造山带内的镁铁、超镁铁质及榴辉岩岩带则是涉及下地壳及上地幔流变的韧性剪切带阵列的代表。这些剪切带阵列经历了长期的演化历史，具正向的、反向的、螺旋形或旋回式的流变学演化轨迹。
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| 关 键 词： | 造山带 剪切带 桐柏－大别山 |
Shear Zone Arrays in Tongbai-Dabie Orogenic Belt |
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| Zhong Zengqiu Suo Shutian. Shear Zone Arrays in Tongbai-Dabie Orogenic Belt[J]. Earth Science-Journal of China University of Geosciences, 1994, 19(4): 433-442 |
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| Authors: | Zhong Zengqiu Suo Shutian |
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| Abstract: | The regular shear zone arrays, including ductile and brittle ones, are developed in Tongbai - Dabie orogenic belt over a long history of ductile reworking and britle remaking of the sialic crust. The shear zone arrays are formed by polyphase orogenic collision and post - orogenic extensional collapse, and play an important role in accommodation of the sialic crust in terms of rheological and tectonic evolution of the orogenic belt. The aligned mafic - urtramaf rocks and eclogite represent special ductile shear zone array, involving the rheological behavior in the lower crust and upper mantle. The shear zone arrays in Tongbai - Dabie orogenic belt experienced a long history of evolution, showing the normal, inverse and screw -type or cyclic rheological evolutional paths . |
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| Keywords: | Tongbai-Dabie orogenic belt shear zone arrays rheological evolutoin. |
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