| 檀国平.燕山地区含矿闪长岩类的地球化学标志[J].地质找矿论丛,1994,(2):18-27 |
| 燕山地区含矿闪长岩类的地球化学标志 |
| GEOCHEMICAL CHARACTERISTICS OF DIORITE AND EVALUATION OF ITS ORE-BEARING PROPERTY IN YANSHAN REGION |
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| DOI：10.6053/j.issn.1001-1412.1994.2. 003 |
| 中文关键词: 燕山 闪长岩 地球化学 找矿 |
| 英文关键词: |
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| 中文摘要: |
| 燕山地区含矿闪长岩主要为元古宙侵入的变质闪长岩。其特点是侵入期次早,分异程度低(D.I.=44.18),富CaO、Cr2O3、V2O5、贫TiO2,Na2O/K2O比值较高(2.42～5.36),稀土总量(102.72ppm)及轻重稀土比值(3.88)较低,Sr/Ba比值(1.62)较高,Rb/Sr(0.06),Au/Mn(0.06)比值偏低。微量元素Au、Pb、Zn等含量较低。碱度系数(A.F)低(44.48)。 |
| 英文摘要: |
| The Ore-bearing diorite in Yanshan region is dominated by metamorphic diorites intruded during Proterozoic. They are characterized by the early time of intrusion, poor differentiation (D.I=44.18) higher value of CaO, Cr2O3 and V2O5, lower Value of TiO2, higher ratio of Na2O/K2O(2.42-5.36) and Sr/Ba (1.62), lower ratio of Rb/Sr (0.06) and Au/Mn (0.06), lower value of TREE (102.72ppm) and lower LREE/HREE (3.88), lower ualue of Au, Pb, Zn as well as alkalinity cofficient(A.F)(44.8) |
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