| 晚奥陶世北秦岭弧后盆地放射虫组合 |
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| 引用本文： | 崔智林,华洪.晚奥陶世北秦岭弧后盆地放射虫组合[J].地质学报,2000,74(3):254-258. |
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| 作者姓名： | 崔智林 华洪 |
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| 作者单位： | 西北大学地质学系,西安,710069 |
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| 基金项目： | 中国科学院南京地质古生物研究所现代古生物学和地层学开放研究实验室资助课题 |
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| 摘 要： | 陕西渭北地区旬奥陶世裂陷成深水环境９，构成北秦岭弧后盆地的一部分，接受了一套碳酸盐岩斜坡相沉积。在其下部地层首次分离出一个保存良好，属种丰富的放射虫化石化合Ｉｎａｎｉｂｉｇｕｔｔａ ａｆｆ．ｉｎｃｏｎｓｔａｎｓ－Ｓｙｎｔａｇｅｎｔａｃｔｉｎｉａ ｂｉｏｃｃｕｌｏｓａ组合，计有７科、１４属、２３种、４新种，以Ｉｎａｎｉｇｕｔｔｉｄａｅ、Ｈａｐｌｅｎｔａｃｔｉｎｉｉｄａｅ、Ｐｏｌｙｅｎｔａｃｔｉｎｉｉ
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| 关 键 词： | 奥陶纪 放射虫 古地理 北秦岭弧后盆地 |
The Late Ordovician Radiolarian Assemblage of the North Qinling Back-arc Basin, China |
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| Cui Zhilin Hua Hong Song Qingyuan.The Late Ordovician Radiolarian Assemblage of the North Qinling Back-arc Basin, China[J].Acta Geologica Sinica,2000,74(3):254-258. |
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| Authors: | Cui Zhilin Hua Hong Song Qingyuan |
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| Institution: | Cui Zhilin Hua Hong Song QingyuanDepartment of Geology,Northwest University,Xi'an |
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| Abstract: | The Weibei area is located on the north side of the Weihe River near the Qinling Mountains. During the early Palaeozoic it belonged to the North China carbonate platform, but at the beginning of the Late Ordovician, it subsided and developed into a deep-w |
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| Keywords: | Ordovician radiolaria palaeogeography |
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