| 东秦岭泥盆纪成矿海盆中一种（准）同生热水蚀变岩研究 |
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| 引用本文： | 薛春纪,马国良.东秦岭泥盆纪成矿海盆中一种（准）同生热水蚀变岩研究[J].矿物岩石,1993,13(1):25-32. |
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| 作者姓名： | 薛春纪 马国良 |
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| 作者单位： | 西安地质学院,西安地质学院 西安 710054,西安 710054 |
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| 基金项目： | 中国科学院矿床地球化学开放研究实验室科学基金 |
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| 摘 要： | 赋存层控铅锌矿床的东秦岭泥盆系内发育一类特殊岩石——方柱黑云岩。野外和室内的研究表明,它是与火山及热泉活动有关的异常地热海盆中的一种特殊沉积相。矿物学、岩石学及地球化学特征也为其原凝灰质沉积岩经过热卤水“浸泡效应”(soaking effect)形成方柱黑云岩类的成因提供了可靠信息。据此推测秦岭泥盆纪层控矿床成矿海盆的异常地热背景和热水沉积环境。
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| 关 键 词： | 泥盆纪 海盆 蚀变岩 黑云岩 热水 |
STUDY OF SYNGENETIC ALTERED ROCK OF HOT WATER IN METALLOGENIC BASIN OF DEVONIAN PERIOD IN QINLING |
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| Xue chunji Ma Guolang.STUDY OF SYNGENETIC ALTERED ROCK OF HOT WATER IN METALLOGENIC BASIN OF DEVONIAN PERIOD IN QINLING[J].Journal of Mineralogy and Petrology,1993,13(1):25-32. |
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| Authors: | Xue chunji Ma Guolang |
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| Abstract: | A special type of rock-scapolite biotite rock of Devonian which is endowed with stratabound zinc and lead ore deposits is found at East Qinling. The field and laboratory work shows that it is a typical sedimentary facies in the anomalous geothermal basin related to volcano and hot spring. The nature of mineralogy, petrology and geochemistry also provides reliable information to prove that primitive tuffaceous sedimentary rock underwent "soaking effect" in a kind of brine and formed scapolite biotite rock. From this, we may assume the geothermal abnormaly background and hot water sedimentary environment of metallogenetic basin of stratabound ore deposits of Devonian Period in Qinling. |
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| Keywords: | Scapolite biotite rock hot water environment Devonian Period East Qinling |
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