| 塔里木盆地中、晚奥陶世疑源类组合 |
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| 引用本文： | 李军,王怿.塔里木盆地中、晚奥陶世疑源类组合[J].地层学杂志,1999,23(2):124-129. |
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| 作者姓名： | 李军 王怿 |
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| 作者单位： | 中国科学院南京地质古生物研究所,江苏,南京,210008 |
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| 基金项目： | 中国科学院古生物与古人类基础研究特别支持费资助,国家自然科学基金 |
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| 摘 要： | 塔里木盆地中、晚奥陶世疑源类被划分为４个组合，自下而上分别为Ｐｅｔｅｉｎｏｓｐｈａｅｒｉｄｉｕｍ－Ｂａｌｔｉｓｐｈａｅｒｉｄｉｕｍ组合，Ｂａｌｔｉｓｐｈａｅｒｏｓｕｍ－Ｄｉｃｈｏｔｉｓｐｈａｅｒａ组合，Ｎａｖｉｆｕｓａ－Ｏｒｄｏｖｉｃｉｄｉｕｍ组合及Ｄａｃｔｙｌｏｆｕｓａ－Ｌｅｉｏｓｐｈａｅｒｉｄｉａ组合。下部３个组合产于中奥陶统，代表台地—台缘斜坡相环境，最上部１个组合产于上奥陶统，代表滨海相或陆源碎屑浊积岩沉积
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| 关 键 词： | 疑源类，中、晚奥陶世，塔里木盆地，新疆 |
| 修稿时间： | 1997-12-15 |
Middle-Late Ordovician Acritarch Assemblages from the Tarim Basin,Xinjiang |
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| Li Jun,Wang Yi.Middle-Late Ordovician Acritarch Assemblages from the Tarim Basin,Xinjiang[J].Journal of Stratigraphy,1999,23(2):124-129. |
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| Authors: | Li Jun Wang Yi |
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| Abstract: | Four acritarch assemblages, namely in ascending order,
Peteinosphaeridium Baltisphaeridium, Baltisphaerosum Dichotisphaera, Navifusa
Ordoricidium, Dactylofusa Leiosphaeridia assemblages, covering the age from Middle to Late
Ordovician have been first documented from the Tarim Basin. The three assemblages from the
lower part are Middle Ordovician in age and represent platform to slope facies environment
while the assemblage from the upper part is Late Ordovician in age and represents littoral
facies or terrestrial facies enviroment. |
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| Keywords: | acritarch assemblages Middle-Late Ordovician Tarim Basin Xinjiang |
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