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题名: Equisetum cf. oppositum (Equisetaceae) from the Paleocene-Eocene of Tibet in southwestern China and its paleoenvironmental implications
作者: Yang, GL; Wang, ZX; Chen, JW; Yan, DF; Sun, BN
收录类别: SCIE
出版日期: 2016-12
刊名: ARABIAN JOURNAL OF GEOSCIENCES
卷号: 9, 期号:1-20
出版者: SPRINGER
出版地: HEIDELBERG
英文摘要: Rhizomes with tubers of Equisetum cf. oppositum Ma, Su et Zhang are described for the first time from the Paleocene-Eocene of North Nima Basin, the Tibet Autonomous Region, southwestern China. The fossils are preserved as rows of 6 tubers and rhizome consisting of distinct node and internodes; the tubers are elliptical, ovate, and more or less rounded with distinct longitudinal ribs and grooves on the surface of internodes. According to the similarity of the morphology and arrangement with fossil Equisetum subgenus Equisetum, the present fossils are assigned to Equisetum cf. oppositum Ma, Su et Zhang. Vegetative reproduction and energy storage are the main two functions of tubers, and the presence of tubers implies that burial occurred during the late fall or winter. Based on the occurrence of fossil Equisetum in the forth sequence and the ichthyolite in Nima Basin, associated with zoolite, fossil plant, and palynological assemblages in Lunpola Basin, it would suggest a locally warm, wet environment, probably a lacustrine depositional environment during the Paleocene-Eocene in the Nima Basin of geographic center of Tibetan Plateau. Furthermore, the molasse characteristic of Niubao Formation shows that the Nima Basin situated in the hinterland of Tibetan Plateau might uplifted during the Paleocene-Eocene and have become land from sea. The study is of great significance for further interpretation of the history of uplift in the Paleocene-Eocene of the Tibetan Plateau.
关键词: Fossil plants ; Equisetum ; Tubers ; Paleocene-Eocene ; Nima Basin ; Tibetan plateau
作者部门: [Yang, Guo-Lin ; Wang, Zi-Xi ; Chen, Jing-Wei ; Yan, De-Fei ; Sun, Bai-Nian] Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China ; [Yang, Guo-Lin ; Wang, Zi-Xi ; Chen, Jing-Wei ; Yan, De-Fei ; Sun, Bai-Nian] Lanzhou Univ, Key Lab Mineral Resources, Lanzhou 730000, Peoples R China
通讯作者: Sun, BN (reprint author), Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China. ; Sun, BN (reprint author), Lanzhou Univ, Key Lab Mineral Resources, Lanzhou 730000, Peoples R China.
学科分类: Geology
文章类型: Article
所属项目编号: Specialized Research Fund for the Doctoral Program of Higher Education [20120211110022] ; Fundamental Research Funds for the Central Universities [lzujbky-2015-201]
所属项目名称: 高等学校博士学科点专项科研基金 ; 中央高校基本科研业务费专项资金
项目资助者: MOE ; LZU
语种: 英语
DOI: 10.1007/s12517-016-2777-z
ISSN号: 1866-7511
WOS记录号: WOS:000391424900012
IR记录号: WOS:000391424900012
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/189138
Appears in Collections:地质科学与矿产资源学院_期刊论文

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Recommended Citation:
Yang, GL,Wang, ZX,Chen, JW,et al. Equisetum cf. oppositum (Equisetaceae) from the Paleocene-Eocene of Tibet in southwestern China and its paleoenvironmental implications[J]. ARABIAN JOURNAL OF GEOSCIENCES,2016,9(1-20).
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