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| 甘肃华家岭-葫芦河一带韧性剪切带的发现及其地质意义 | |
| 引用本文： | 张彦杰,马惠萍,张宏斌.甘肃华家岭-葫芦河一带韧性剪切带的发现及其地质意义[J].西北地质,2003,36(3):24-28. |
| 作者姓名： | 张彦杰 马惠萍 张宏斌 |
| 作者单位： | 1. 甘肃省地质调查院,甘肃,兰州,730000;中国地质大学,北京,100083 2. 甘肃省国土资源厅,甘肃,兰州,730000 3. 甘肃省地质调查院,甘肃,兰州,730000 |
| 基金项目： | 中国地质调查局 1∶ 2 5万静宁幅区域地质调查项目 (编号 :2 0 0 1 1 3 0 0 0 0 1 6)部分成果 |
| 摘 要： | 华家岭—葫芦河韧性剪切带呈NWW走向，属北祁连造山带与中祁连地块分界断裂，通过对其几何学、运动学、动力学等分析研究，认为峰期变形系加里东末期南北两大板块汇聚碰撞，拼合于华北板块南缘的软质陆壳(北祁连)向南侧刚性的中祁连地块斜向逆冲叠覆，从而产生自NEE向SWW兼右行走滑的逆冲式韧性剪切活动。 |
| 关 键 词： | 华家岭—葫芦河 韧性剪切带特征 地质意义 |
| 文章编号： | 1009-6248(2003)03-0024-05 |
| 修稿时间： | 2003年3月5日 |
Discovery of ductile shear zone and its geological significance in the Huajialing-Huluhe area, Gansu |
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| ZHANG Yan-jie,MA Hui-ping,ZHANG Hong-bin.Discovery of ductile shear zone and its geological significance in the Huajialing-Huluhe area, Gansu[J].Northwestern Geology,2003,36(3):24-28. | |
| Authors: | ZHANG Yan-jie MA Hui-ping ZHANG Hong-bin |
| Institution: | ZHANG Yan-jie~1,MA Hui-ping~2,ZHANG Hong-bin~1 |
| Abstract: | The ductile shear zone of Huajialing-Huluhe, a discordogenic fracture of North Qilian orogenic and median Qilian land mass,is brittle-ductile shear zone with multiperiodic activity , strike NWW.By analyse and research of geometrics,kinematics,dynamics,etc.We think the deformation peak is convergence collision of North plate and South plate at late-Caledonian,matching weak continental crust(North Qilian) of south border of North china plate oblique thrusting overlap to median Qilian rigid block at south,so it produced obduction tenacity shear structure from NEE to SWW and right-slip. |
| Keywords: | Huajialing-Huluhe feature of ductile shear zone geological significance |
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