| 甘肃靖远上泥盆统沙流水组沉积地球化学特征及其物源分析 |
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| 引用本文： | 徐亚军,杜远生,杨江海,陈甲才.甘肃靖远上泥盆统沙流水组沉积地球化学特征及其物源分析[J].沉积学报,2011,29(1):41-54. |
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| 作者姓名： | 徐亚军 杜远生 杨江海 陈甲才 |
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| 作者单位： | 生物地质与环境地质教育部重点实验室武汉430074 |
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| 基金项目： | 国家自然科学基金项目(批准号:41002030,40672080和40621002); “111”项目和中国地质大学(武汉)优秀青年教师基金(编号:CUGQNL0832)联合资助 |
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| 摘 要： | 甘肃靖远上泥盆统沙流水组沉积地球化学研究表明:砂岩较泥质岩含有较高的SiO2含量和斜长石,而泥质岩较砂岩含有较高的铁镁质组分和含钾矿物.砂岩和泥质岩样品均亏损Nb、Ta、Sr元素.砂岩中部分样品富集Zr、Hf元素和强烈的Eu的负异常,部分样品显示Zr、Hf亏损和弱的负Eu异常.泥质岩样品均富集Nj、Cr元素,但具有较强...
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| 关 键 词： | 沙流水组 沉积地球化学 物源 甘肃 北祁连造山带 |
| 收稿时间： | 1900-01-01 |
Geochemistry and Provenance of the Upper Devonian Shaliushui Formation in Jingyuan County, Gansu Province |
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| XU Ya-jun,DU Yuan-sheng,YANG Jiang-hai,CHEN Jia-cai.Geochemistry and Provenance of the Upper Devonian Shaliushui Formation in Jingyuan County, Gansu Province[J].Acta Sedimentologica Sinica,2011,29(1):41-54. |
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| Authors: | XU Ya-jun DU Yuan-sheng YANG Jiang-hai CHEN Jia-cai |
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| Institution: | Key Laboratory of Biology and Environment Geology of Education Ministry, Wuhan 430074 |
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| Abstract: | Sedimentary geochemistry of detrital rocks from the upper Devonian Shaliushui Formation in Jingyuan,Gansu suggest that sandstone contain higher SiO2 and plagioclase content than mudstone;Mudstone,however,occupy higher femic mineral and mineral K-bearing than sandstone.All samples are depleted in Nb,Ta and Sr elements.Some of sandstones are enriched with Zr and Hf elements,with strong negative Eu anomalies,and others are depleted in Zr and Hf without negative Eu anomalies.All mudstones display enrichment of ... |
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| Keywords: | Shaliushui Formation sedimentary geochemistry provenance Gansu province the North Qilian Orogenic Belt |
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