| 李兆龙,陈爱民,李继英.中条地区胡家峪-篦子沟型铜矿床稀土元素地球化学特征[J].地质找矿论丛,1986,(2):46-54 |
| 中条地区胡家峪-篦子沟型铜矿床稀土元素地球化学特征 |
| REE GEOCHEMICAL CHARACTERISTICS OF HUJIAYU-BIZIGOU-TYPE COPPER DEPOSITS IN ZHONGTIAO MOUNTAIN AREA, SHANXI PROVINCE |
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| DOI：10.6053/j.issn.1001-1412.1986.2. 005 |
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| 中文摘要: |
| 胡家峪-篦子沟型铜矿床是中条山地区具重要意义的铜矿类型之一.矿床以严格受地层控制、品位高、并伴生钴、金为特点,引起许多地质学家对此类矿床的重视.随着地质工作的深入和发展,对该类型矿床的认识也不断加深,先后提出过岩浆热液、变质热液、沉积变质及火山-沉积变质等成因观点.本文仅就中条山地区胡家峪,篦子沟铜矿带稀土元素地球化学特征进行阐述,以期对该区矿床成因提供信息. |
| 英文摘要: |
| This paper deals with the rare earth element geochemical characteristics of various rocks and ores of Hu-Bi-type copper deposits in Zhongtiao mountain area,including upper and lower marbles,Cu-bearing albite-quartz-dolomitic marbles,Cu-bearing ferrodolomite veins and scapolite-biotite schists.REE pattern of marble in Yuyanxia formation is similar to that of marble in Yujiashan formation.Both are characterized by slight differentiation between LREE and HREE and trace depletion of Eu.In Bizigou copper deposits,ΣLREE/ΣHREE ratios of Cu-bearing albite-quartz-dolomitic marbles and Cu-bearing dolomite veins are 2.0,2.4 and La/Yb ratios are 1.08,0.86 respectively.There is no obvious differentiation between LREE and HREE.The ΣREE values of mineralized tuffaceous marbles and dolomite veins are 183.23 ppm,536.16 ppm respectively in Hujiayu copper deposit.La/Yb ratios are 31.72 and 42.49,characterized by strong differentiation in LREE and HREE,steep inclined patterns and large negative Eu anomaly.The REE distribution patterns of scapolite-biotite schists for both copper deposits are similar and also related genetically to the REE features of Cu-bearing albite-quartz-dolomitic marbles and Cu-bearing dolomitic veins.Both are of volcano-sedimetitary reworked deposits. |
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