黑龙江冶金
黑龍江冶金
흑룡강야금
HEILONGJIANG YEJIN
2015年
4期
12-17
,共6页
何忠庠%陈友良%常丹%胡旭刚%魏佳
何忠庠%陳友良%常丹%鬍旭剛%魏佳
하충상%진우량%상단%호욱강%위가
510-1铀矿床%方解石%石英%微量元素%若尔盖
510-1鈾礦床%方解石%石英%微量元素%若爾蓋
510-1유광상%방해석%석영%미량원소%약이개
510-1 Uranium Deposit%calcite%quartz%trace elements%Zoige
本文通过对若尔盖510－1铀矿床中与铀成矿作用密切相关的热液矿物———成矿期方解石、石英的微量元素地球化学特征进行研究，结果表明成矿期方解石和石英中含量较高的微量元素种类基本一致，相对富含V、Ni、Zn、Sr、Ba、U等元素，且其微量元素相对于原始地幔的配分曲线形态亦基本一致，说明形成方解石和石英的成矿流体来源相同。总体上两者的稀土配分模式都呈相对平坦型，尤其是方解石的稀土配分模式与球粒陨石十分相似，可能暗示形成方解石的成矿流体具有一定的幔源特征。相关性分析表明，方解石中U与Sc、Y、Mo、Sb、Hf、Re呈明显的正相关，石英中U与V、Co、Ni、Cu、Zn、Ba呈明显的正相关，U与Co、Ni、Hf等深源元素相关的事实反映了形成矿床的成矿流体应当来源于深部。而方解石、石英中与U相关性较好的微量元素种类差异很大，这可能是形成方解石和石英的同源流体在后期演化过程中其所萃取的元素种类不同所致。
本文通過對若爾蓋510－1鈾礦床中與鈾成礦作用密切相關的熱液礦物———成礦期方解石、石英的微量元素地毬化學特徵進行研究，結果錶明成礦期方解石和石英中含量較高的微量元素種類基本一緻，相對富含V、Ni、Zn、Sr、Ba、U等元素，且其微量元素相對于原始地幔的配分麯線形態亦基本一緻，說明形成方解石和石英的成礦流體來源相同。總體上兩者的稀土配分模式都呈相對平坦型，尤其是方解石的稀土配分模式與毬粒隕石十分相似，可能暗示形成方解石的成礦流體具有一定的幔源特徵。相關性分析錶明，方解石中U與Sc、Y、Mo、Sb、Hf、Re呈明顯的正相關，石英中U與V、Co、Ni、Cu、Zn、Ba呈明顯的正相關，U與Co、Ni、Hf等深源元素相關的事實反映瞭形成礦床的成礦流體應噹來源于深部。而方解石、石英中與U相關性較好的微量元素種類差異很大，這可能是形成方解石和石英的同源流體在後期縯化過程中其所萃取的元素種類不同所緻。
본문통과대약이개510－1유광상중여유성광작용밀절상관적열액광물———성광기방해석、석영적미량원소지구화학특정진행연구，결과표명성광기방해석화석영중함량교고적미량원소충류기본일치，상대부함V、Ni、Zn、Sr、Ba、U등원소，차기미량원소상대우원시지만적배분곡선형태역기본일치，설명형성방해석화석영적성광류체래원상동。총체상량자적희토배분모식도정상대평탄형，우기시방해석적희토배분모식여구립운석십분상사，가능암시형성방해석적성광류체구유일정적만원특정。상관성분석표명，방해석중U여Sc、Y、Mo、Sb、Hf、Re정명현적정상관，석영중U여V、Co、Ni、Cu、Zn、Ba정명현적정상관，U여Co、Ni、Hf등심원원소상관적사실반영료형성광상적성광류체응당래원우심부。이방해석、석영중여U상관성교호적미량원소충류차이흔대，저가능시형성방해석화석영적동원류체재후기연화과정중기소췌취적원소충류불동소치。
This paper makes an analysis of the geochemical characteristics of trace elements of hydro-thermal minerals, such as calcite and quartz on metallogenic epoch which are closely related with ura-nium mineralization in the Zoige.510 -1uranium deposit.Results show that the kinds of trace ele-ments that are higher concentration in calcite is basically consistent with that in quartz.They are rela-tively rich in V, Ni, Zn, Sr, Ba, U and other elements.Shape of trace elements distribution of them patterns compared with the primitive mantle are consistent, which indicates that the metallogenic fluid forming calcite and quartz are the same.Overall, both rare earth distribution patterns are belong to a relatively flat type, especially rare earth distribution patterns are very similar with that of chondritic, suggesting that the ore -forming fluid of formation of calcite has certain characteristics of mantle source.Correlation analysis manifests that there are obviously correlation between U and Sc、Y、Mo、Sb、Hf、Re in calcite, and between U and V、Co、Ni、Cu、Zn、Ba in quartz.The correlation of U and deep-source elements such as Co , Ni, Hf reflects that the metallogenic fluid should derive from deep-source.The Kinds of trace elements that correlate well with U in calcite and quartz are very different ,which may be caused by difference kinds of trace elements extracted by the metallogenic flu-id forming calcite and quartz in the later evolution process.
