| 介形虫壳元素成分的初步测试 |
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| 引用本文： | 毕先梅
,阮培华.介形虫壳元素成分的初步测试[J].地球科学,1987(1). |
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| 作者姓名： | 毕先梅 阮培华 |
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| 作者单位： | Wuhan College of Geology，Wuhan 430074 |
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| 摘 要： | 用能谱仪初步测试了46个介形虫样品的元素成分,结果表明现代介形虫壳的元素成分变化小,Ca为其主要成分(含Ca94.12—99.8％),Si、Al含量很低。新生代介形虫壳的成分和现代介形虫壳的成分相似.中生代和古生代的介形虫壳含Ca量减少,Si、Al含量增高,还含微量的K、Mn、Fe、S、Mg等元素.介形虫壳成分的变化,推测与地质时期中介形虫的埋藏条件和石化程度等有关.
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| 关 键 词： | 能谱仪 介形虫 定量 |
PRELIMINARY DETERMINATION OF CHEMICAL COMPOSITION OF OSTRACOD CARAPACE |
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| Bi Xianmei Ruan Peihua.PRELIMINARY DETERMINATION OF CHEMICAL COMPOSITION OF OSTRACOD CARAPACE[J].Earth Science-Journal of China University of Geosciences,1987(1). |
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| Authors: | Bi Xianmei Ruan Peihua |
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| Abstract: | 46 ostracod specimens have been determined by using
of energy dispersive spectrometer. The results show little variety in chemical composition of ostracod carapace in recent period, having Ga as the dominant component ( calcium content 94.12-99.84% ) and very low Si and A1 contents. The composition of Cenozoic ostraeod. is similar to that of recent ostracod. Ostracod shells in Mesozoic and Palaeozoic contain lower calcium and higher silicon and aluminium, and a trace amount of potassium, manganese, iron, sulphur, magnesium and so on.The change in composition of ostracods with geological time is probably related to the burying conditions of ostracods and to the degrees of petrification of the fossils. |
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| Keywords: | energy dispersive spectrometer ostracod quantification |
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