| 芦山—天全地区大溪砾岩岩石学特征及物源区分析 |
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| 引用本文： | 李元林,纪相田.芦山—天全地区大溪砾岩岩石学特征及物源区分析[J].矿物岩石,1993,13(3):68-73. |
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| 作者姓名： | 李元林 纪相田 |
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| 作者单位： | 成都理工学院沉积地质及矿产研究所，成都理工学院沉积地质及矿产研究所 成都 610059，成都 610059 |
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| 摘 要： | 大溪砾岩为一套厚层碳酸盐质砾岩,具有砾石含量高,砾石分选、磨圆较好的特点。据砾石统计、薄片分析、古生物鉴定、古流分析及重矿物组合表明,大溪砾岩中砾石主要来自龙门山区的泥盆系—三叠系,填隙物中的石英碎屑可能主要来自杂岩体。大溪砾岩的砾石成分有向上趋于复杂的特点。
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| 关 键 词： | 大溪砾岩 岩石学 物源区 砾岩 |
PETROLOGICAL CHARACTER OF DAXI CONGLOMERATE IN LUSHAN-TIANQUAN AND ITS PROVENANCE |
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| Li Yuanlin Ji Xiangtian.PETROLOGICAL CHARACTER OF DAXI CONGLOMERATE IN LUSHAN-TIANQUAN AND ITS PROVENANCE[J].Journal of Mineralogy and Petrology,1993,13(3):68-73. |
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| Authors: | Li Yuanlin Ji Xiangtian |
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| Abstract: | Daxi conglomerate is massic carbonate conglomerate with high pebble content, well-sorted and well-rounded, which belongs to fluvial origin. The pebbles of Daxi conglomerate are derived from Devonian-Triassic in Longmen mountains and quartz in the matrix mostly from complex, according to the statistics for pebbles, thin section, identification for fossils and measurement at palaeocurrents as well as heavy mineral association. The pebble component of Daxi conglomerate trends to complicated upwards. |
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| Keywords: | Daxi conglomerate petrology provenance |
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