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Palaeoenvironmental reconstruction and biostratinomic analysis of the Jurassic Yanliao Lagerstatte in northeastern China

文献类型：期刊论文

作者Yang, Zixiao1; Wang, Shengyu1; Tian, Qingyi1; Wang, Bo2; Hethke, Manja3; McNamara, Maria E.4; Benton, Michael J.5; Xu, Xing6; Jiang, Baoyu1
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2019-01-15
卷号514页码:739-753
ISSN号0031-0182
关键词Palaeolake Volcanism Taphonomy Ecosystem Middle-Late Jurassic Yanliao Biota
DOI10.1016/j.palaeo.2018.09.030
通讯作者Jiang, Baoyu(byjiang@nju.edu.cn)
英文摘要The Middle-Upper Jurassic Yanliao Lagerstatte contains numerous exceptionally preserved fossils of aquatic and land organisms, including insects, salamanders, dinosaurs, pterosaurs and mammaliaforms. Despite extensive study of the diversity and evolutionary implications of the biota, the palaeoenvironmental setting and taphonomy of the fossils remain poorly understood. We reconstruct both the palaeoenvironment of the Daohugou area (one of the most famous Yanliao fossil areas), and the biostratinomy of the fossils. We use high-resolution stratigraphic data from field investigation and excavations to document in detail the stratigraphic succession, lithofacies, facies associations, and biostratinomic features of the Lagerstatte. Our results show that frequent volcanic eruptions generated an extensive volcaniclastic apron and lake(s) in the studied area. The frequent alternation of thin lacustrine deposits and thick volcaniclastic apron deposits indicates either that the studied area was located in the marginal regions of a single lake, where the frequent influx of volcaniclastic apron material caused substantial fluctuations in lake area and thus the frequent lateral alternation of the two facies, or that many short-lived lakes developed on the volcaniclastic apron. Most terrestrial insects were preserved in the laminated, normally graded siltstone, claystone and tuff facies that form many thin intervals with deposits of graded sandstone, siltstone and tuff in between. Within each interval the terrestrial insects occur in many laminae associated with abundant aquatic organisms, but are particularly abundant in some laminae that directly underlie tuff of fallout origin. Most of these terrestrial insects are interpreted to have been killed in the area adjacent to the studied palaeolake(s) during volcanic eruptions. Their carcasses were transported by influxes of fresh volcaniclastic material, primarily meteoric runoff and possibly minor distal pyroclastic flow into the palaeolake(s), and were buried in palaeolake deposits prior to extended decay probably due to a combination of rapid vertical settling, ash fall and water turbulence.
WOS关键词CHALLIS VOLCANIC FIELD ; NORTHERN CHINA ; SEDIMENTATION PROCESSES ; PYROCLASTIC FLOWS ; INNER-MONGOLIA ; ALLUVIAL-FAN ; CRATER-LAKE ; DAOHUGOU ; SEDIMENTOLOGY ; EVOLUTION
资助项目National Natural Science Foundation of China, China[41672010] ; National Natural Science Foundation of China, China[41688103] ; National Natural Science Foundation of China, China[41572010] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences, China[XDB26000000] ; European Research Council, European-Union Starting Grant[H2020-2014-ERC-StG-637698-ANICOLEVO]
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000456355800054
资助机构National Natural Science Foundation of China, China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences, China ; European Research Council, European-Union Starting Grant
源URL[http://119.78.100.205/handle/311034/9268]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Jiang, Baoyu
作者单位1.Nanjing Univ, Sch Earth Sci & Engn, Ctr Res & Educ Biol Evolut & Environm, Nanjing 210023, Jiangsu, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
3.Free Univ Berlin, Fachbereich Geowissensch, Inst Geol Wissensch, Malteserstr 74-100, D-12249 Berlin, Germany
4.Univ Coll Cork, Sch Biol Earth & Environm Sci, Distillery Fields, Cork T23 TK30, Ireland
5.Univ Bristol, Sch Earth Sci, Bristol BS8 1RJ, Avon, England
6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Zixiao,Wang, Shengyu,Tian, Qingyi,et al. Palaeoenvironmental reconstruction and biostratinomic analysis of the Jurassic Yanliao Lagerstatte in northeastern China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2019,514:739-753.
APA Yang, Zixiao.,Wang, Shengyu.,Tian, Qingyi.,Wang, Bo.,Hethke, Manja.,...&Jiang, Baoyu.(2019).Palaeoenvironmental reconstruction and biostratinomic analysis of the Jurassic Yanliao Lagerstatte in northeastern China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,514,739-753.
MLA Yang, Zixiao,et al."Palaeoenvironmental reconstruction and biostratinomic analysis of the Jurassic Yanliao Lagerstatte in northeastern China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 514(2019):739-753.

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来源：古脊椎动物与古人类研究所

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