摘要
Basedonananalysisofthefractalstructuresandmasstransportmechanismoftypicalshear-fluid-oreformationsystem,thefractaldispersiontheoryofthefluidsystemwasusedinthedynamicstudyoftheoreformationsystem.Themodelofpoint-sourcediffusiveilluviationoftheshear-fluid-oreformationsystemwasconstructed,andthenumericalsimulationofdynamicsoftheoreformationsystemwasfinished.Theresultshowsthat:(1)Themetallogenicsystemhavenestedfractalstructure.Differentfractaldimensionvaluesindifferentsystemsshowunbalanceandinhomogeneityofore-formingprocessesinthegeohistory.Itisanimportantparametertosymbolizetheprocessofremobilizationandaccumulationofore-formingmaterials.Alsoitcanindicatethedynamicsofthemetallogenicsystemquantitativelytosomeextent.(2)Inessence,thefractaldispersiveore-formingdynamicsisacombinationofmulti-processesdominatedbyfluiddynamicsandsupplementedbymoleculedispersioninfluidsandfluid-rockinteraction.Itchangescomponentsandphysico-chemicalpropertiesofprimaryrocksandfluids,favouringdepositionandmineralizationofore-formingmaterials.(3)Goldore-formingprocessesindifferenttypesofshearzonesarequitedifferent.(1)Inametallogenicsystemwithinhomogeneousvolumetricchangeandinhomogeneousshear,mineralizationoccursinstructuralbarriersinthecentreofashearzoneandingeochemicalbarriersintheshearzonenearitsboundaries.Butthereislittlepossibilityofmineralizationoutoftheshearzone.(2)Astoametallogenicsystemwithinhomogeneousvolumetricchangeandsimpleshear,mineralizationmayoccuronlyinstructuralbarriersnearthecentreoftheshearzone.(3)Inametallogenicsystemwithhomogeneousvolumetricchangeandinhomogeneousshear,mineralizationmayoccuringeochemicalbarriersbothwithinandoutoftheshearzone.
出版日期
2001年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
