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大地构造学研究的新兴前沿课题——造山过程中的流体作用 被引量:10

A NEW STUDYING SUBJECT OF TECTONICS GEOFLUID ACTIVITIES IN OROGENESIS
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摘要 流体活动研究已从俯冲带转移到造山过程。主要研究如下几个问题:(1)造山过程中流体的运移方式和分布规律,即造山带古流体场的重建;(2)流体在造山过程中对各种地质作用的参与;(3)造山带演化特征与流体活动幕次的关系;(4)盆山成矿与流体活动的关系等。选择研究程度高、具明显的流体活动特征,同造山成矿发育的年轻造山带或其中一段通过多学科综合研究,将使人们更深入地理解造山过程中的各种地质作用和盆山转化规律及动力学特征。 The research interests of tectonic geologists in geofluids have shifted from modern subduction zones to continental orogens in recent years. These orogens are later in orogenesis, obivious in features of geofluid activities, advanced in research on their basic geology and rich in synorogenesis ore deposits and have a historic stage of the conversion from oceanic basin to orogen. The problems would be studied: (1) What pattern of geofluid migration in orogenesis is or how the migration field of ancient fluids can be reconstructed. (2) What relationships between tectonic framework and districts of fluid activities of an orogen are. (3) What links between characteristics of a geochemical field and the flow paths of geofluids are. (4) How to distinguish what degree the geofluids influence the sedimentation, magmatism, metamorphism, metellegenesis, oil and gas formation, structural deformation and terrain accretion durring orogenesis. (5) What links between the analyses of the geofluid history and orogenesis process are. Through the intensive researches on geofluids and their related geologic elements in a typical section and small region, the geofluid activities and history can be recognised with various research methods of many branches of geology based on tectonic analyses for an orogen and basins. The tectonic integrate study and investigation of an orogen and the sampling of rock deformation and fluid inclusions may be done in same time. Model experiments on the geofluid formation, penetration and migration in an orogen and its adjacent basins would be developed with well understanding of the orogenic process.
出处 《地学前缘》 EI CAS CSCD 1996年第3期131-137,共7页 Earth Science Frontiers
关键词 流体作用 造山作用 大地构造 geofluids, orogenesis, continental tectonics
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参考文献6

  • 1沈照理,地球科学进展,1994年,9卷,3期
  • 2陶于祥,地球科学进展,1994年,9卷,3期
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