高校地质学报
高校地質學報
고교지질학보
GEOLOGICAL JOURNAL OF CHINA UNIVERSITIES
2014年
4期
564-569
,共6页
张国亚%周四春%刘晓辉%刘俊%杨奎%朱剑
張國亞%週四春%劉曉輝%劉俊%楊奎%硃劍
장국아%주사춘%류효휘%류준%양규%주검
地气测量%土壤X荧光测量%异常特征%隐伏铀矿%找矿预测
地氣測量%土壤X熒光測量%異常特徵%隱伏鈾礦%找礦預測
지기측량%토양X형광측량%이상특정%은복유광%조광예측
geogas survey%X-ray fluorescence measurements of soil%abnormal features%concealed uranium%ore-prospecting
采用地气与土壤X荧光(地球化学)测量法,对鄂东南某铀矿勘查区开展隐伏铀矿找矿工作,结果表明铀矿赋存在工作区主断裂和次级断裂中,在含矿断裂上方及断裂延伸方向的相邻区域形成含U的地气与土壤地球化学异常区。异常区内Pb,Zn,Cu,Au的地气异常明显且具有一定的差异,同时伴有幅度较低的W,Bi,Y,Mo,Mn,As等元素组合异常。根据勘查区获得的地气与土壤X荧光资料综合分析,在测区西北的次级断裂F7北部捕获的地气与土壤异常具有已知矿异常的全部特征。依据地气异常位置与断裂的关系,推断铀矿可能埋深在200~350 m左右,矿体在走向上可能有220 m的延续。目前,在该异常区布设的钻孔已在200 m深度见到铀矿体,进一步的探矿工程还在进行中。
採用地氣與土壤X熒光(地毬化學)測量法,對鄂東南某鈾礦勘查區開展隱伏鈾礦找礦工作,結果錶明鈾礦賦存在工作區主斷裂和次級斷裂中,在含礦斷裂上方及斷裂延伸方嚮的相鄰區域形成含U的地氣與土壤地毬化學異常區。異常區內Pb,Zn,Cu,Au的地氣異常明顯且具有一定的差異,同時伴有幅度較低的W,Bi,Y,Mo,Mn,As等元素組閤異常。根據勘查區穫得的地氣與土壤X熒光資料綜閤分析,在測區西北的次級斷裂F7北部捕穫的地氣與土壤異常具有已知礦異常的全部特徵。依據地氣異常位置與斷裂的關繫,推斷鈾礦可能埋深在200~350 m左右,礦體在走嚮上可能有220 m的延續。目前,在該異常區佈設的鑽孔已在200 m深度見到鈾礦體,進一步的探礦工程還在進行中。
채용지기여토양X형광(지구화학)측량법,대악동남모유광감사구개전은복유광조광공작,결과표명유광부존재공작구주단렬화차급단렬중,재함광단렬상방급단렬연신방향적상린구역형성함U적지기여토양지구화학이상구。이상구내Pb,Zn,Cu,Au적지기이상명현차구유일정적차이,동시반유폭도교저적W,Bi,Y,Mo,Mn,As등원소조합이상。근거감사구획득적지기여토양X형광자료종합분석,재측구서북적차급단렬F7북부포획적지기여토양이상구유이지광이상적전부특정。의거지기이상위치여단렬적관계,추단유광가능매심재200~350 m좌우,광체재주향상가능유220 m적연속。목전,재해이상구포설적찬공이재200 m심도견도유광체,진일보적탐광공정환재진행중。
We have carried out concealed uranium ore prospecting by geogas and soil X-ray fluorescence (geochemistry) measurements in the exploration area of uranium deposits in southeastern Hubei Province. Measurements of the known uranium mining areas show that uranium occurs in the primary and secondary fractures. Above the ore fractures and along the direction extended from the fracture in the adjacent area, forms the geogas and soil geochemical anomaly area of uranium. In the abnormal zone, Pb, Zn, Cu, Au in the geogas show anomalies, but also show obvious difference. The anomalies are accompanied by low amplitude anomalies in W, Bi, Y, Mo, Mn, As and so on. According to the comprehensive analyses of exploration area with geogas and soil X-ray fluorescence data, the northwest part of the surveyed area north of the secondary fracture F7 captured all the characteristics of geogas and soil with known ore anomaly. According to the relationship between abnormal position of geogas and fracture, uranium may be buried at the depth of 200~350 m, on to the ore body, extending 220 m along the strike. At present, uranium ore bodies have been confirmed in the abnormal area in a borehole at 200 m depth. Further exploration engineering work is in progress.