陕西双王含金角砾岩地质特征及成因初探

收稿日期: 2001-02-14

修回日期: 2001-10-28

刊出日期: 2002-03-15

The geological features and preliminary study of goldhosted breccia in Shuangwang ore deposit, Shaanxi

Received Date: 14 February 2001

Revised Date: 28 October 2001

Publish Date: 15 March 2002

摘要: 双王金矿含金角砾岩为水力压裂成因角砾岩。认为该水压角砾岩体是深源富碱含金流体在泥盆系一套热水沉积的富钠质岩系中发生水力压裂作用形成的。早期共轴递进挤压使能干性的富钠质岩系与非能干性的富泥质岩系发生构造透镜石香肠化;晚期的非共轴递进剪切使早期在透镜体中心形成的构造裂隙由剪性转化为张性,并产生巨大的压力降使深部的流体在富钠质岩系中沿裂隙发生水力压裂作用,从而形成双王水力压裂含金角砾岩。
- 水压角砾岩 /
- 地质特征 /
- 地质证据 /
- 水力压裂成因 /
- 双王
Abstract: Gold-hosted breccia in Shuangwang or edeposit is hydrofracturing breccia.The hydrofracturing breccia is formed by deep rich-sodic and gold-hosted fluid hydrofracturing in a set of Devonian system hot-water sedimentary rich-sodic rocks.The early coaxial progressive depressing makes the forming of tectonic lens in the competent rich-sodic and incompetent rich-mud rocks; the later nocoaxial progressive shearing makes the tectonic compression fracture into extension fracture in the early tectonic lens,at the same time,the great drop of pressure leads to the hydrofractureing of deep fluid along the fracture in the rich-sodic rocks,and then produces the hydrofracturing breccia.
- hydrofracturing breccia /
- geological features /
- geological envidence /
- hydrof-rac-turing genesis /
- Shuangwang

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