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| 新疆西昆仑加勒万河一带早二叠世菊石化石的发现及岩相古地理意义 |
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何国建1,2,3, 陈建中4, 张密椋2,3, 姚建斌4, 陈浩鹏2,3, 胡为正2,3
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1.南京大学地球科学与工程学院, 江苏 南京 210023;2.江西省地质调查勘查院基础地质调查所, 江西 南昌 330030;3.江西有色地质矿产勘查开发院, 江西 南昌 330030;4.新疆维吾尔自治区地质矿产勘查开发局第三地质大队, 新疆 库尔勒 841000
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| 摘要: |
| 在新疆和田县西南峡谷一带的加勒万河谷地区早二叠世地层中首次发现Prostacheoceras cf.Kongaraquense、Artinskia sp.和Agathiceras sp.菊石化石。这3种菊石化石的时代为乌拉尔期,代表了特提斯型菊石组合,与华南的栖霞组相当。其中,Prostacheoceras为特提斯类型的主要属,Artinskia为空谷阶的特征属,Agathiceras则为中石炭世—早二叠世的世界性分布属。此三者同时出现在加勒万河一带加温达坂组中,丰富了加温达坂组的化石资料,对恢复西昆仑地区的古地理和与其他区域生物地层对比提供了重要的化石依据。 |
| 关键词: 西昆仑 特提斯 早二叠世 加温达坂组 菊石 |
| DOI：10.12097/j.issn.1671-2552.2023.01.007 |
| 分类号:P534.46;Q91 |
| 基金项目:新疆自治区中央返还两权价款基金项目《新疆西昆仑西南峡谷一带1∶5万I44E007002、I44E008002、I44E008003、I44E009003四幅区域地质调查》(编号:T15-1-LQ22) |
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| The discovery of Early Permian ammonite fossils in Galvan,West Kunlun,Xinjiang and its significance of lithofacies and palaeogeography |
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HE Guojian1,2,3, CHEN Jianzhong4, ZHANG Miliang2,3, YAO Jianbin4, CHEN Haopeng2,3, HU Weizheng2,3
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1.School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, Jiangsu, China;2.Basic Geological Survey Institute of Jiangxi geological survey and Exploration Institute, Nanchang 330030, Jiangxi, China;3.Jiangxi Institute of Geological Prospecting and Mineral Resource for Nonferrous Metal, Nanchang 330030, Jiangxi, China;4.No.3 Geological Party, Xinjiang Bureau of Geology and Mineral Exploration and Development, Korla 841000, Xinjiang, China
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| Abstract: |
| It was the firt funded of the Prostacheoceras cf.Kongaraquense,Artinskia sp.,Agathiceras sp.ammonoid fossils in the Early Permian Strata in the Galvan Valley,Southwest Canyon area,Hotan,Xinjiang.The date of these three classes fossils is Cisuralian,which is equal to the date of Qixia Formation in the South China.The Prostacheoceras ammonoid is the main genus of Tethys type,while the Artinskia ammonoid is the special type of the Kungurian and the Agathiceras ammonoid is the global ammonite type in the Middle Carboniferous to Early Permian.Those three types ammonoid fossils which were funded in the Galvan area,enrich new fossil materials to the Jiawendaban Formation,and also provide important fossil evidences for the biostratigraphic correlation research of the West Kunlun. |
| Key words: West Kunlun Tethys Early Permian Jiawendaban Formation ammonoid |