| 由铅同位素年龄计算模式的选择探讨凤─成铅锌成矿带的形成 |
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| 引用本文： | 金勤海.由铅同位素年龄计算模式的选择探讨凤─成铅锌成矿带的形成[J].陕西地质,1995(1). |
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| 作者姓名： | 金勤海 |
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| 作者单位： | 陕西省地质矿产局第三地质队!宝鸡县，721300 |
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| 摘 要： | 凤（县）－成（县）铅锌成矿带由东向西铅同位素的变化趋势与赋矿围岩从泥盆系递变为三叠系相一致，显示了成矿物质的层控性；与印支期构造运动相伴的侵入岩广泛分布，且参与矿化，反映成矿与该期构造、岩浆活动有联系，这种联系可能是成矿作用具较明显时控性的重要因素。
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| 关 键 词： | 凤县－成县 铅锌成矿带 铅同位素 年龄计算模式 时控 层控 |
DISCUSSION FOR THE FORMATION OF Pb-Zn MINERALIZATION BELT FROM FENGXIAN TO CHENGXIAN BY THE SELECTION OF CALCULATED MODEL OF Pb ISOTOPIC AGE |
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| Jin Qinhai.DISCUSSION FOR THE FORMATION OF Pb-Zn MINERALIZATION BELT FROM FENGXIAN TO CHENGXIAN BY THE SELECTION OF CALCULATED MODEL OF Pb ISOTOPIC AGE[J].Geology of Shaanxi,1995(1). |
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| Authors: | Jin Qinhai |
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| Abstract: | It is showed that mineralization Substance is of stratabound as result of the change trend of Pb isotope from east to west within Pb - Zn mineralization belt of Feng -Cheng consist with the seqUence to go forward one by one from Devonian to Triassic. There exist much of intrusive rocks associated with tectonic move ment in Inde-Chinese epoch, which take place in the mineralization, So, the mineralization relats to the tectonic and magmatic activity in the epoch, which should be an important factor for time-bound feature of the mineralization. |
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| Keywords: | Pb-Zn mineralization belt calculated model of Pb isotopic age timebound stratabound Fengxian-Chengxian |
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