| 川东北及陕南三叠纪有孔虫 |
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| 引用本文： | 何炎. 川东北及陕南三叠纪有孔虫[J]. 古生物学报, 1993, 32(2): 170-187 |
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| 作者姓名： | 何炎 |
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| 作者单位： | 中国科学院南京地质古生物研究所 南京210008 |
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| 摘 要： | 四川宣汉、万源、旺苍及陕西镇巴三叠纪有孔虫产于中统雷口坡组,下统嘉陵江组及飞仙关组上部.根据有孔虫的分布,划分下统为两个带,5个亚带,中统1个带,并讨论了其对比问题.
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| 关 键 词： | 川东北 陕南 三叠纪 有孔虫 |
TRIASSIC FORAMINIFERA FROM NORTHEAST SICHUAN AND SOUTH SHAANXI, CHINA |
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| He Yan Nanjing Institute of Geology and Palaeontology,Academia Sinic,Nanjing. TRIASSIC FORAMINIFERA FROM NORTHEAST SICHUAN AND SOUTH SHAANXI, CHINA[J]. Acta Palaeontologica Sinica, 1993, 32(2): 170-187 |
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| Authors: | He Yan Nanjing Institute of Geology Palaeontology Academia Sinic Nanjing |
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| Affiliation: | He Yan Nanjing Institute of Geology and Palaeontology,Academia Sinica,Nanjing 210008 |
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| Abstract: | The foraminifera described in the present paper were collected from Scythian and Anisian in the Xuanhan, Wanyuan and Wancang Counties of Sichuan and the Zhenba County of Shaanxi. Since Triassic foraminifera in this region have been hitherto unknown, the present material might be of some biogeographical and biostratigraphical value.The Triassic strata in northeastern Sichuan and southern Shaanxi as shown by the sections from which the foraminifera were obtained are recognized as follows:Middle Triassic AnisianLeikoupo FormationThis consists mainly of grey limestone and dolomitic limestone. The limestone yields Lituotuba sp. (from Renjiawan, Dukou, Xuanhan County, Sichuan) and Glomospira densa (Pantic) and Meandrospira dinaria Kochansky-Devide et Pantic (from Huafangzi, Jinxi, Wangcang County, Sichuan). |
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| Keywords: | Triassic strata foraminirera China |
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