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| 北部湾X1钻孔岩芯沉积物的Ⅹ射线衍射分析研究 |
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段伟民, 李坤业, 杨惠兰, 陈丽蓉
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中国科学院海洋研究所
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| 摘要: |
| X射线技术在结晶矿物学上已得到广泛的应用,它测量精度较高,快速简便,对样品无破坏作用,是地质研究中的重要手段之一,它还广泛地用于大陆架地区的沉积物研究(俞旭等,1982; Devine,1972)。本文将对北部湾东北部x1钻孔近百米的沉积物岩芯全样进行X射线衍射定量分析研究,并根据矿物组合特征,探讨北部湾沉积区的沉积环境及演化过程。 |
| 关键词: Ⅹ射线衍射分析、北部湾、岩芯沉积物 |
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| 基金项目:中国科学院海洋研究所调查研究报告第2143号 |
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| STUDY ON THE BEIBU GULF CORE-X1 SEDIMENT SAMPLES BY X-RAY DIFFRACTION |
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Duan Weimin, Li Kunye, Yang Huilan, Chen Lirong
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Institute of Oceanology, Academia Sinica
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| Abstract: |
| Mineral compositions of x1 core sediment samples from Beibu Gulf were studied by the X-ray diffraction method. The parameters Mc/Q, TF/Q and P/K revealed the sedimentary environment changes from Pliocene to Holocene, and showed that the studied area was shallow sea facies environment during Pliocene and Holocene, and that the land facies sediments were mainly distributed during Pleistocene, but that the transgression sequence was formed in the middle stage of Late Pleistocene. |
| Key words: X-ray diffraction method, BEIBU GULF CORE-X1 SEDIMENT SAMPLES |
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