| 吉林东南部白山盆地下白垩统鹰嘴砬子组时代厘定及地质意义 |
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| 引用本文： | 郭琳娜,刘万臻,苏斌,李涛,李云峰.吉林东南部白山盆地下白垩统鹰嘴砬子组时代厘定及地质意义[J].世界地质,2018,37(3):665-674. |
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| 作者姓名： | 郭琳娜 刘万臻 苏斌 李涛 李云峰 |
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| 作者单位： | 1. 吉林大学 博物馆, 长春 130026;2. 吉林省地质调查院, 长春 130102;3. 吉林大学 古生物学与地层学研究中心, 长春 130026 |
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| 基金项目： | 国家自然科学基金（31800182），博士后科学基金（2018M631866），东北亚生物演化与环境教育部重点实验室开放基金（451170301065）联合资助. |
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| 摘 要： | 对鹰嘴砬子组层型剖面进行了重新测制,系统采集了古生物化石。研究证明该组所产脊椎动物、无脊椎动物、植物和孢粉化石组合与Eosestheria-Epicharmeropsis-Lycoptera (EEL)组合为代表的热河生物群一致,代表了中国最东部的热河生物群化石产地,地质时代应为早白垩世,而不是前人划归的晚侏罗世。孢粉学和年代地层学研究资料进一步表明,鹰嘴砬子组地质时代应为早白垩世Hauterivian-Barremian期。鹰嘴砬子组区域上可与辽西义县组、冀北大店子组—西瓜园组及龙江盆地光华组对比。
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| 关 键 词： | 鹰嘴砬子组 热河生物群 时代厘定 白山盆地 吉林东南部 |
| 收稿时间： | 2018-03-30 |
| 修稿时间： | 2018-08-24 |
Determination of Lower Cretaceous Yingzuilazi Formation in Baishan Basin in southeastern Jilin,China and its geological significance |
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| GUO Lin-na,LIU Wan-zhen,SU Bin,LI Tao,LI Yun-feng.Determination of Lower Cretaceous Yingzuilazi Formation in Baishan Basin in southeastern Jilin,China and its geological significance[J].World Geology,2018,37(3):665-674. |
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| Authors: | GUO Lin-na LIU Wan-zhen SU Bin LI Tao LI Yun-feng |
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| Institution: | 1. Museum of Jilin University, Changchun 130026, China;2. Geological Survey Institute of Jilin Province, Changchun 130102, China;3. Research Center of Palaeontology and Stratigraphy, Jilin University, Changchun 130026, China |
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| Abstract: | The stratotype profile of Yingzuilazi Formation is measured anew and the paleontological fossils are discovered and gathered. The fossil assemblage comprising vertebrates, invertebrates, plants and sporopollen is in accordance with the Jehol Biota represented by the Eosestheria-Epicharmeropsis-Lycoptera (EEL) assemblage, representing one of the easternmost Jehol Biota localities in China. Thus the geological age of the Yingzuilazi Formation should be assigned to the Early Cretaceous, rather than the Late Jurassic previously.Evidence of palynology and chronostratigraphy further indicate that the geological age of Yingzuilazi Formation should be assigned to Cretaceous Hauterivian-Barremian. The Yingzuilazi Formation can be correlated with the Yixian Formation of western Liaoning, the Dadiangzi and Xiguayuan formations of northern Hebei and the Guanghua Formation of the Longjiang Basin regionally. |
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| Keywords: | Yingzuilazi Formation Jehol Biota geological age determination Baishan Basin southeastern Jilin China |
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