| 新疆且末地区中侏罗世杨叶组孢粉化石的发现及其地质意义 |
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| 引用本文： | 赵志刚,张雄华,李晓阳,孙志佳,曾蛟,王运良.新疆且末地区中侏罗世杨叶组孢粉化石的发现及其地质意义[J].地质通报,2019,38(10):1603-1614. |
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| 作者姓名： | 赵志刚 张雄华 李晓阳 孙志佳 曾蛟 王运良 |
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| 作者单位： | 中国人民武装警察部队黄金第七支队, 山东 烟台 264004,中国地质大学(武汉)地球科学学院, 湖北 武汉 430074,中国人民武装警察部队黄金第七支队, 山东 烟台 264004,中国人民武装警察部队黄金第七支队, 山东 烟台 264004,中国人民武装警察部队黄金第七支队, 山东 烟台 264004,中国人民武装警察部队黄金第七支队, 山东 烟台 264004 |
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| 基金项目： | 中国地质调查局项目《西北沿边及特殊地区地质矿产调查》（编号：DD20160079） |
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| 摘 要： | 新疆且末县江尕勒萨依村杨叶组首次发现了大量孢粉化石。经鉴定共计37属81种,根据孢粉化石组合特征及地层分布将其命名为Cyathidites-Neoraistrickia-Disacciatrileti组合,时代为中侏罗世早期,与西北区、华北区同时代地层中孢粉组合可以很好的对比。通过研究孢粉组分与母本植物的亲缘关系,得出中侏罗世早期江尕勒萨依地区植被主要由真蕨类植物、石松类植物和乔木的松柏类及苏铁类组成,反映古气候为热带-亚热带湿润气候。
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| 关 键 词： | 孢粉组合 江尕勒萨依村 中侏罗世早期 杨叶组 古气候 |
| 收稿时间： | 2019/3/20 0:00:00 |
| 修稿时间： | 2019/6/27 0:00:00 |
The discovery of the sporopollen fossils from the Middle Jurassic Yangye Formation in Qiemo area of Xinjiang and its geological significance |
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| ZHAO Zhigang,ZHANG Xionghu,LI Xiaoyang,SUN Zhiji,ZENG Jiao and WANG Yunliang.The discovery of the sporopollen fossils from the Middle Jurassic Yangye Formation in Qiemo area of Xinjiang and its geological significance[J].Geologcal Bulletin OF China,2019,38(10):1603-1614. |
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| Authors: | ZHAO Zhigang ZHANG Xionghu LI Xiaoyang SUN Zhiji ZENG Jiao and WANG Yunliang |
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| Institution: | The 7th Gold Detachment of Chinese Armed Police Force, Yantai 264004, Shandong, China,Faculty of Earth Sciences, China University of Geosciences(Wuhan), Wuhan 430074, Hubei, China,The 7th Gold Detachment of Chinese Armed Police Force, Yantai 264004, Shandong, China,The 7th Gold Detachment of Chinese Armed Police Force, Yantai 264004, Shandong, China,The 7th Gold Detachment of Chinese Armed Police Force, Yantai 264004, Shandong, China and The 7th Gold Detachment of Chinese Armed Police Force, Yantai 264004, Shandong, China |
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| Abstract: | Abundant sporopollen fossils, which include 37 genera and 81 species, were found for the first time in the Yangye Formation in Jiangalsay, Qiemo, Xinjiang. According to the characteristics and stratigraphic distribution of sporopollen fossils, the age of the Cyathidites-Neoraistrickia-Disacciatrileti belongs to the early stage of Middle Jurassic. The palynological assemblage is well correspondent to that of some regions in Northwest China and North China. By studying the kinship between the sporopollen components and vegetation types, the authors have reached the conclusion that the vegetation at the early stage of Middle Jurassic was mainly composed of Filicinae, lycopods conifers and cycad in Jiangalsay, which suggests that the paleclimate belonged to the tropicalsubtropical humid climate. |
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| Keywords: | sporopollen assemblages Jiangalsay early stage of Middle Jurassic Yangye Formation paleclimate |
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