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大地构造与成矿学 1982
POLYGENETICCOMPOUNDOREDEPOSITSANDTHEIRORIGININTHECONTEXTOFREGULARITIESINCRUSTALEVOLUTION, PP. 1-32 Keywords: 左心电容切口计价心土水沟平乡马尾冰丘公助 Abstract: Polygeneticcompoundoredepositsareheredefinedasthoseoredepositswhichevidentlypossessmany-sidedgeneticcharacteristicsasacomprehensiveresultofmorethanonemineralizationstages,frommanymaterialsources,andofmanygenetictypes.Theyareformedmostcommonlyduringthediwa(geodepression)stageintheprocessofcrustalevolutionand,therefore,spreadmostwidelyindiwaregions.Atthepresentstageofourknowledge,theymaybesubdividedintothreeprincipalmodelsandmanytypesofmetallogenesis,controlledbydifferentgeotectonicconditionsandbeingdistributedintimeandinspaceaccordingtothecorrespondingregularities.Thisisanewlyrecognized,thirdgenetictypeoforedeposits,beingnotreasonabletobesimplyreferredtoeitherpureendogenicorpureexogenicorigin.Theyareveryimportantandareofgreatstudy-significance,becausetheycommonlyarerichandhavealargeamountofreservewithhigh.economicvalue.
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