Discovery of ductile shear zone and its geological significance in the Huajialing -Huluhe area, Gansu

ZHANG Yan-jie; MA Hui-ping; ZHANG Hong-bin

2003 Vol. 36, No. 3

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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.

Citation:

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.

Discovery of ductile shear zone and its geological significance in the Huajialing -Huluhe area, Gansu

1.
Geological Survey of Gansu Province, Lanzhou 730000, China
2.
Department of Land and Resources of Gansu Province, Lanzhou 730000, China
3.
Geological Survey of Gansu Province, Lanzhou 730000, China

Received Date: 05 March 2003

Revised Date: 27 June 2003

Publish Date: 15 September 2003

Abstract

Abstract

The ductile shear zone of Huajialing-Huluhe,a disco rdogenic fracture of North Qilian orogenic and median Qilian land mass,is brittle-ductile shear zone with multip eriodic activity,strike NWW.By analyse and research of geomet rics,kinematics,dynamics,etc.We think the deformation peak is convergence coilision 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,soit produced obduction tenacity shear structu refrom NEE to SWW and right-slip.
- Huajialing-Huluhe /
- feature of ductile shear zone /
- geological significance