SHAHE DUCTILE SHEAR ZONE IN NORTHERN LIAONING PROVINCE AND ITS ORE-SEARCHING IMPORTANCE
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摘要: 沙河韧性剪切带内金矿化矿质主要来源于新太古代变质深成侵入岩.发育于地块边缘的韧性变形构造为金质富集提供了有利的物理、化学条件和赋存空间,金矿化程度主要受地块边缘韧性变形强弱制约.Abstract: The E-W-trending Shahe fault belt, composed of 2 or 3 compression and shearing faults, is distributed in Kaiyuan area, Northern Liaoning Province. The authors recognized a ductile shear zone on the south and parallel to the Shahe fault belt, in which gold ore bodies were found. Study shows that the ore material is derived from mainly the Neoarchean metamorphosed plutonic intrusive rock. The ductile shearing structure developed in the massif margin provides favorite physical and chemical conditions and spaces for gold deposition. The strength of the ductile deformation controls the degree of gold mineralization.
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Key words:
- Shahe fault /
- ductile shear zone /
- gold mineralization /
- Northern Liaoning Province
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