%0 Journal Article %T PHYSICALENRICHMENT¡ª¡ªANEWTHEORYONTHEGENESISOFINDUSTRIALPHOSPHORITEDEPOSITS %A Ye %A Lianjun %A Chen %A Qiying %A Liu %A Kuiwu %J ³Á»ýѧ±¨ %P 23-29 %D 1986 %X Sedimentarymineraldepositswerenotformedsimplyasproductofsimplereactionsthroughasinglekindoffactors,butwereoutputsofintricatereactionsamongacomplexsetofevolutionarynaturalenvironmentalagents.Theywereformedatleastthroughthreedifferentstages,viz.,theimbibitionandconcentrationoforeformingmaterials;thegeochemicalenrichment;andthephysicalconcentrationstages(Fig.1).Astoindustrialphosphorites,physicalenrichmntisofparamountimportance.Itseems,almostalloftheworldindustrialphosphoritedepositswereformedassuch.Ourideaofphysicalenrichmentwasfirstsetupin1980,duringthe2ndNationalSymposiumonMineralDepositsatHongchow.Sincethen,lotsofnewevidenceshadbeenaddedup.Inthispaper,onlythoseofphosphoritedepositsaredescribed. %K geochemical %K enrichment %K Cambrian %K mostly %K formations %K bedding %K evolutionary %K shale %K carbonate %K bedded %U http://www.cjxb.ac.cn/CN/abstract/abstract1826.shtml