新疆石油地质 ›› 2008, Vol. 29 ›› Issue (2): 155-158.

• 油气勘探 • 上一篇    下一篇

汝箕沟煤矿的热液活动与煤炭成因

张虎权1, 张景廉1, 卫平生1, 陈启林1, 吴五同2   

  1. 1.中国石油石油勘探开发科学研究院西北分院兰州730020;
    2.甘肃煤炭地质研究所兰州730020
  • 收稿日期:2007-04-17 发布日期:2020-08-17
  • 作者简介:张虎权(1963-), 男, 重庆万州人, 高级工程师, 博士, 石油地质,(Tel)0931-8686130(E-mail)zhanghq111@sina.com.

Hydrothermal Activities vs Coal Origin in Ruqigou Coal Mine

ZHANG Hu-quan1, ZHANG Jing-lian1, WEI Ping-sheng1, CHEN Qi-lin1, WU Wu-tong2   

  1. 1. Northwest Branch, Research Institute of Petroleum Exploration and Development, PetroChina, Lanzhou, Gansu 730020, China;
    2. Gansu Coal Geological Institute, Lanzhou, Gansu 730020, China
  • Received:2007-04-17 Published:2020-08-17

摘要: 鄂尔多斯盆地西缘汝箕沟煤矿的热液活动: 石英脉(硅化)、白云石化、绿泥石化、伊利石化、黄铁矿化, 特别是煤矿中广泛分布的玄武岩, 均表明了裂谷的拉张构造环境; 认为盆地中存在着地幔流体活动。地学断面揭示了盆地的深部地壳有一低速高导层, 富含大量的Na+、K+、Mg2+等碱金属、碱土金属离子, 还有大量的烃。这些流体不仅提供了一些金属离子与金属矿物, 而且提供了大量的碳元素, 这些碳元素构成了煤的主要组成并形成了高变质的无烟煤。结论指出, 煤不仅可以由植物而形成, 也可以通过深部流体而生成。

关键词: 鄂尔多斯盆地, 煤, 成因, 碳堆积, 地球排气作用, 中地壳, 低速-高导层

Abstract: The hydrothermal activities including quartz vein (silication), dolomitization, chloritization, illitization and pyritization and the widely distributed basalt in Ruqigou coal mine in western margin of Ordos basin indicate that there exist mantle fluids in the basin since it is in rifted environment. And the geoscience transect reveals that there is a low-velocity and high-conduction layer in the deep crust of the basin, which contains abundant Na+ , K+ , Mg2 + and Hydrocarbons. These constitute the main components of coal and form highmetamorphic anthracitic coal. It is concluded that coal is not only formed by plants, but also by deep mantle fluids.

Key words: Ordos basin, coal, origin, carbon accumulation, mid-crust, low-velocity and high-conduction layer

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