| 大兴安岭南部二叠纪-三叠纪之交孢粉化石及古气候环境分析 |
| |
| 引用本文： | 张德军,张健,郑月娟,陈树旺,苏飞,黄欣,张海华,甄甄.大兴安岭南部二叠纪-三叠纪之交孢粉化石及古气候环境分析[J].吉林大学学报(地球科学版),2019,49(5):1350-1361. |
| |
| 作者姓名： | 张德军 张健 郑月娟 陈树旺 苏飞 黄欣 张海华 甄甄 |
| |
| 作者单位： | 中国地质调查局沈阳地质调查中心, 沈阳 110034 |
| |
| 基金项目： | 中国地质调查局项目（DD20190097，DD20160198，DD20160163），国家自然科学基金项目（31670215，41702032） |
| |
| 摘 要： | 大兴安岭南部巴林右旗幸福之路苏木查干布拉格村老龙头组（原幸福之路组模式）剖面首次发现孢粉化石18属21种，以Cyclogranisporites sp.，Alisporites parvus De Jersey，Alisporites circulicorpus Clarke，Sulcatisporites rhombicus Qu，Lueckisporites virkkiae R.Potonie et Klaus，Piceites sp.为主。通过典型属种对比，结合已发现的动植物化石、孢粉组合及同位素测年结果分析，确定幸福之路地区老龙头组的时代为晚二叠世-早三叠世，即二叠系-三叠系界限存在于这套陆相连续沉积内部。孢粉化石的亲缘母体以发育种子蕨纲和松柏纲的针叶植物为主，指示当时研究区处于暖温带的干旱-半干旱的古气候环境。
|
| 关 键 词： | 老龙头组 孢粉 古气候环境 二叠纪-三叠纪界限 大兴安岭南部 |
| 收稿时间： | 2018-07-17 |
Discovery and Paleoclimatic Significances of Permian-Triassic Sporopollen Fossils from Southern Da Hinggan Mountains |
| |
| Zhang Dejun,Zhang Jian,Zheng Yuejuan,Chen Shuwang,Su Fei,Huang Xin,Zhang Haihua,Zhen Zhen.Discovery and Paleoclimatic Significances of Permian-Triassic Sporopollen Fossils from Southern Da Hinggan Mountains[J].Journal of Jilin Unviersity:Earth Science Edition,2019,49(5):1350-1361. |
| |
| Authors: | Zhang Dejun Zhang Jian Zheng Yuejuan Chen Shuwang Su Fei Huang Xin Zhang Haihua Zhen Zhen |
| |
| Institution: | Shenyang Center, China Geological Survey, Shenyang 110034, China |
| |
| Abstract: | A total of 21 species of the 18 genera sporopollen fossils are discovered for the first time from the section of the Laolongtou Formation (stratotype section of Xingfuzhilu Formation) in Chaganbulage Village, Xingfuzhilu Town, Bairin Right Banner, Southern Da Hinggan Mountains, including Cyclogranisporites sp., Alisporites parvus De Jersey, Alisporites circulicorpus Clarke, Sulcatisporites rhombicus Qu, Lueckisporites virkkiae R. Potonie et Klaus, Piceites sp., et al. Comparing the typical members with the contemporaneous sporopollen assemblages, and combining with the research results,such as the fauna, flora, sporopollen assemblages and LA-ICP-MS zircon geochronology, the Laolongtou Formation should be formed in the Latest Permian to Early Triassic. The botanical affinities of the sporopollen fossils mainly consist of conifers, belonging to a dry-semi arid and hot-worm climate environment prevailing from the Latest Permian to Early Triassic in Xingfuzhilu area. |
| |
| Keywords: | Laolongtou Formation spores and pollen paleo-climatic environment Permian-Triassic boundary Southern Da Hinggan Mountains |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《吉林大学学报(地球科学版)》浏览原始摘要信息 |
| 点击此处可从《吉林大学学报(地球科学版)》下载免费的PDF全文 |
|
