| 桂西北天峨地区下石炭统有孔虫带及地层划分 |
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| 引用本文： | 陆刚,胡贵昂,张喜,李玉坤.桂西北天峨地区下石炭统有孔虫带及地层划分[J].南方国土资源,2002,15(3):9-14. |
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| 作者姓名： | 陆刚 胡贵昂 张喜 李玉坤 |
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| 作者单位： | 广西区域地质调查研究院,广西,桂林,541003 |
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| 摘 要： | 桂西北天峨地区孤立碳酸盐台地 ,上泥盆统顶部至上石炭统下部有孔虫十分发育 ,可划分 15个有孔虫生物组合带 ,它们是地层划分对比的重要依据。以有孔虫Eoendothyra与Quasiendothyra的灭绝、Bisphaera的大量出现划分泥盆系 /石炭系 ,以Eoparastaffella的出现作为维宪阶的底界 ,以Globivalvulina或Pseudostaffella的出现作为上、下石炭统的划分标志 ,生物分带明显 ,与岩石地层分界吻合或基本一致 ,是较理想的地层分界
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| 关 键 词： | 有孔虫生物带 下石炭统 上石炭统 上泥盆统 杜内阶 维宪阶 天峨地区 |
| 文章编号： | 1003-7861(2002)03-0009-6 |
| 修稿时间： | 2002年5月14日 |
STRATIGRAPHIC DIVISION AND FORAMINIFERA ZONES OF LOWER CARBONIFEROUS IN TIAN'E WESTERN-NORTHERN GUANXI |
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| Authors: | LU Gang HU Gui-ang ZHANG Xi LI Yu-kun |
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| Abstract: | There are a large number of foraminifera in the top of Upper Devonian the bottom of Lower Carboniferous of shallow water carbonate platform tableland of western-northern Guangxi. 15 assemblage zones have been divided, it is an important basis for stratigraphic division and study of stratigraphic sequence. According to exterminated of Eoendothyra-Quasiendothyra and appeared of Bisphaera, it's classifying the boundary line of Devonian/Carboniferous, Eoparastaffella appears at the bottom of Visean, Globivalvulina or Pseudostaffella which appeared is a sign to classify upper and lower Carboniferous. In short, it is a reasonable boundary line for organism obvious classification and stratigraphic coincidence. |
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| Keywords: | foraminifera zones Lower Carboniferous Upper Carboniferous Upper Devonian Tournaisian Visean Tian'e |
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