%0 Journal Article %T ENSIALICACTIVATIONMETALLOGENYINNORTHAMERICA,ACOUNTERPARTOFTHECHINESEDIWAMETALLOGENY %A 拉兹尼卡 %J 大地构造与成矿学 %P 1-23 %@ 2095-9508 %D 1986 %X ThiscontributionpresentsabriefreviewoftheNorthAmericanactivationmetallogeny,comparablewiththeChinesediwa.Threetypesofmineralizedterrainsaretreated:1)Regionsoflargely"cold"(proximalintrusionsabsent)Pb-Zn,fluoriteandbaritemineralizationincarbonate-dominatedplatformsrestingonPrecambriancrystallinebasement.There,severalvarietiesoforesoftenlumpedtogetherunderthedesignationof"MississippiValleytype"aremostcommon.2)Regionsof"cold"uraniuminfiltrationalmineralizationinporoussandstonesintheblock-faultedWyomingForelandBelt.3)Regionsof"hot"activationinintracontinentalmountainandorogenicbelts,intrudedbysmallhigh-levelcalc-alkalinetoalkalineintrusionsanddiscontinuouslycoveredbyvolcanicfields.TheColoradoRockyMountainsaredescribedingreaterdetailandadditionalregionsinNorthAmericaarebrieflylisted. %K 成矿学 %K 大地构造 %K 活化 %K 拉兹 %K 北美 %K 北关 %K 地物 %K 三资 %K 上口 %K 月相 %U http://www.ddgzyckx.com//oa/darticle.aspx?type=view&id=19860101