%0 Journal Article
%T POLYGENETICCOMPOUNDOREDEPOSITSANDTHEIRORIGININTHECONTEXTOFREGULARITIESINCRUSTALEVOLUTION
%J 大地构造与成矿学
%P 1-32
%@ 2095-9508
%D 1982
%X Polygeneticcompoundoredepositsareheredefinedasthoseoredepositswhichevidentlypossessmany-sidedgeneticcharacteristicsasacomprehensiveresultofmorethanonemineralizationstages,frommanymaterialsources,andofmanygenetictypes.Theyareformedmostcommonlyduringthediwa(geodepression)stageintheprocessofcrustalevolutionand,therefore,spreadmostwidelyindiwaregions.Atthepresentstageofourknowledge,theymaybesubdividedintothreeprincipalmodelsandmanytypesofmetallogenesis,controlledbydifferentgeotectonicconditionsandbeingdistributedintimeandinspaceaccordingtothecorrespondingregularities.Thisisanewlyrecognized,thirdgenetictypeoforedeposits,beingnotreasonabletobesimplyreferredtoeitherpureendogenicorpureexogenicorigin.Theyareveryimportantandareofgreatstudy-significance,becausetheycommonlyarerichandhavealargeamountofreservewithhigh.economicvalue.
%K 左心电容切口计价心土水沟平乡马尾冰丘公助
%U http://www.ddgzyckx.com//oa/darticle.aspx?type=view&id=198201001