| 巴彦浩特盆地东部上石炭统羊虎沟组孢粉组合 |
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| 引用本文： | 耿国仓,袁效奇.巴彦浩特盆地东部上石炭统羊虎沟组孢粉组合[J].甘肃地质学报,1996,5(2):11-20,T004. |
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| 作者姓名： | 耿国仓 袁效奇 |
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| 作者单位： | 长庆石油勘探局勘探开发研究院 |
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| 摘 要： | 钻井资料证实，内蒙巴彦浩特盆地东部保存有较完整的石炭系，其中上石炭统羊虎沟组厚达４５９．６ｍ。经７２块岩样分析鉴定，共发现６２属１１９种孢粉，含６个新种。可概括为上下两个孢粉组合，上组合称Ｄｅｎｓｏｓｐｏｒｉｔｅｓｂｅｌｕｌｕｓ－Ｃｒａｓｓｉｓｐｏｒａｌａｔｉｇｒａｎｉｆｅｒ－Ｌｙｃｏｓｐｏｒａｇｒａｎｕｌａｔａ（简称ＢＬＧ）组合，下组合称Ｃｒａｓｉｓｐｏｒａｌａｔｉｇｒａｎｉｆｅｒ－Ｃａｍｐｔｏｒｉｌｅｔｅｓｒｅｔｉｃｕｌｏｆｏｒｍｉｓ－Ｖｅｓｔｉｓｐｏｒａｃｏｓｔａｔａ（简称ＬＲＣ）组合。地质时限为晚石炭世中期羊虎沟组（维斯法期Ａ—Ｃ）。
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| 关 键 词： | 内蒙 巴彦浩特盆地 石炭系 羊虎沟组 孢粉 |
THE SPORO POLLEN ASSEMBLAGES OF UPPER CARBONIFEROUS YANGHUGOU FORMATION IN THE EAST PART OF BAYANHOT BASIN,INNER MONGOLIA |
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| Geng Guocang,Yuan Xiaoqi.THE SPORO POLLEN ASSEMBLAGES OF UPPER CARBONIFEROUS YANGHUGOU FORMATION IN THE EAST PART OF BAYANHOT BASIN,INNER MONGOLIA[J].Acta Geologica Gansu,1996,5(2):11-20,T004. |
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| Authors: | Geng Guocang Yuan Xiaoqi |
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| Institution: | Geng Guocang Yuan Xiaoqi (Institute of Petroleum Exploration and Development, Changqing Bureau of Petroleum Exploration Qingyang 745101) |
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| Abstract: | The driling data proved that Carboniferous sediments about thousand meters are preserved in Bayanhot basin, the southeast Alxa massif ,of which Yanghugou formation thickness is 459.6 m. Well preserved fossil spores and pollens of 62 genera and 119 species are found in 72 samples got at the formation. Six new species including Iblahimsporites pustulatus, Histricosporites multispinosus. Ahrensisporites pseudovalis. Hymenozonotriletes labiatus, Tripartites pseudoreticulatus and Limitisporites magnus are described. There are two assemblages in Yanghugou formation: The upper part assemblage is named Densosporites bellulus- Crassispora latigranifer-Lycospora granulata (BLG); and the lower part assemblage is named Crassispora latigranifer-Camptotriletes reticuloformis-Vestispora costata (LRC). According to the sporo pollen assemblages of Yanghugou formation may be correlated with the middle epoch of Upper Carboniferous of Great Britain, north France and Turcky. So the age of the assemblages correspond to the Westfalian A-C epoch of Upper Carboniferous. |
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| Keywords: | Inner Mongolia Bayanhot basin Carboniferous system Yanghugou formation Sporo pollen assemblage |
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