| 阿坝盆地区域地球化学特征及其地质意义 |
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| 引用本文： | 游再平,朱礼学.阿坝盆地区域地球化学特征及其地质意义[J].四川地质学报,2000,20(3):216-220. |
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| 作者姓名： | 游再平 朱礼学 |
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| 作者单位： | 四川省地勘局区调队,四川双流 |
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| 摘 要： | １：２０万区域水系沉积物地球化学是量结果显示，队坝盆地４０种元素簇群特征明显，按其相关性可划分为三大组合，明显富集Ｓｉ、Ｚｒ、Ｃａ、Ｎａ、Ｓｒ、Ｌａ，贫化Ｆｅ、Ｃｒ、Ｔｉ、Ｋ、Ａｌ。元素组合及分布均表现为风化残积的表生地球化学特点，表明盆地区现今仍以沉积为主，侵蚀作用居次要地位。阿坝盆地是一个发育在断裂 下降盘并逐渐向南西迁移的不对称箕状断陷盆地。
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| 关 键 词： | 阿坝盆地 区域地球化学 水系沉积物测量 |
REGIONAL GEOCHEMISTRY OF THE ABA BASIN AND ITS GEOLOGICAL SIGNIFICANCE |
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| You,Zaipixng,Zhu,Lixue.REGIONAL GEOCHEMISTRY OF THE ABA BASIN AND ITS GEOLOGICAL SIGNIFICANCE[J].Acta Geologica Sichuan,2000,20(3):216-220. |
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| Authors: | You Zaipixng Zhu Lixue |
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| Abstract: | regional geochemical survey shows that the Aba basin is characterized by 40 element clusters which may be divided into 3 associations on the basis of their correlation,with obvious enrichment in Si,Zr,Ca,Na,Sr,La and depletion in Fe,Cr,Ni,Ti,K,Al Element associations and their distribution are characteristic of eluvium which indicates that in the basin sedimentation dominated over erosion Aba basin is a faulted basin which is a southward migrationg and asymmetric skip basin |
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| Keywords: | Aba basin regional geochemistry stream sediment survey geological significance |
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