Geological applications of supercritical fluids

WANG Chuan-yuan; DU Jian-guo; LIU Wei; ZHOU Xiao-cheng; ZHENG Chao-yang

Northwestern Geology > 2005 > 38(2): 49-53.

WANG Chuan-yuan, DU Jian-guo, LIU Wei, et al. Geological applications of supercritical fluids[J]. Northwestern Geology, 2005, 38(2): 49-53.

Citation:

WANG Chuan-yuan, DU Jian-guo, LIU Wei, et al. Geological applications of supercritical fluids[J]. Northwestern Geology, 2005, 38(2): 49-53.

Citation:

WANG Chuan-yuan, DU Jian-guo, LIU Wei, et al. Geological applications of supercritical fluids[J]. Northwestern Geology, 2005, 38(2): 49-53.

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Geological applications of supercritical fluids

1.
Center for Analysis and Prediction, CSB, Beijing 100036, China;Lanzhou Insititute of Geology, CAS, Lanzhou 730000, China;Graduate School, Chinese Academy of Sciences, Beijing 100039, China
2.
Center for Analysis and Prediction, CSB, Beijing 100036, China
3.
Lanzhou Insititute of Geology, CAS, Lanzhou 730000, China

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Received Date: February 10, 2004
Revised Date: March 28, 2005
Published Date: June 04, 2005

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Abstract

Abstract

The "critical divergence", "critical opalescence", intensive oxidation, alterable dielectric constant, extraordinary solvating power and structure character of supercritical fluids are reviewed,and geological applications of supercritical fluids are discussed. The macrocosmic properties of supercritical fluids are tightly concerned with microscopic structure. Supercritical fluids are an important factor in many geological processes. Supercritical fluids play an important role in the processes of fluid-rock reaction and tectonics evolution,participate reaction and provide energy foritin the formation of oil and gas,are profit to migration and enrichment of elements in hydrot hermal formation of ore deposits,and greatly affecton generations of seismand magma.Supercritical techniques(supercritical extraction and super critical water oxidation)can improve recovery ratio of ore and dispose efficiently different kinds of wastes.It was proposed that further work would be done in the fields of supercritical reaction,investigation of deep-earth processes and development of supercritical techniques in environment algeology.
- supercritical fluids,
- tectonic evolution,
- metallization,
- environmental geology

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