Acritarch assemblages from the Middle-Upper Ordovician in the Aksu area, northwestern margin of the Tarim Basin, Xinjiang, China | |
Yan, Kui (燕夔)2; Servais, Thomas3; Shan, Longlong1,2; Li, Jun (李军)4 | |
刊名 | NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN |
2020-02-01 | |
卷号 | 295期号:2页码:169-183 |
关键词 | Palynology biostratigraphy palaeogeography Kalpin Late Ordovician acritarchs Tarim Basin |
ISSN号 | 0077-7749 |
DOI | 10.1127/njgpa/2020/0882 |
英文摘要 | Upper Darriwilian to middle Katian (Ordovician) outcrops are well exposed in the Kalpin (Aksu) area, in the northwestern margin of the Tarim Basin, Xinjiang, China. The Dawanxigou and Sishichang sections in the Kalpin area, near the Dawangou Auxiliary Stratotype Section and Point (ASSP), were palynologically investigated. Both sections provide well-preserved acritarch assemblages dominated by acanthomorph, sphaeromorph and netromorph morphotypes, attributed to 36 species and 20 genera. A comparison of the acritarch assemblages with coeval microfloras from other parts of the world confirms a wide cosmopolitism distribution, indicative of a breakdown of acritarch provincialism during the Late Ordovician. Several acritarchs from the Tarim Basin are restricted to the Late Ordovician, and as they are distributed worldwide, they present a potential for global bio-stratigraphical correlations. The acritarch assemblages from the different sections of the northwestern part of the Tarim Basin show slightly variable compositions, probably caused by different palaeo-ecological settings. The diversity and compositional changes of the acritarch assemblages, combined with the sedimentological evidence, suggest a transgressive sequence from the Sargan Formation to the Qilang Formation. |
资助项目 | National Natural Science Foundation of China[NSFC41472007] ; Chinese Academy of Sciences[XDB26000000] |
WOS关键词 | SILURIAN ACRITARCHS ; BIOSTRATIGRAPHY ; BOUNDARY ; DAWANGOU ; MICROPHYTOPLANKTON ; STRATIGRAPHY ; CHITINOZOANS ; CONODONTS ; SOUTHERN ; BALTICA |
WOS研究方向 | Paleontology |
语种 | 英语 |
出版者 | E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG |
WOS记录号 | WOS:000518779700007 |
资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://ir.nigpas.ac.cn/handle/332004/31670] |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Yan, Kui (燕夔) |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.Univ Lille, UMR 8198, SN5, Evoecopaleo,CNRS, F-59000 Lille, France 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China |
推荐引用方式 GB/T 7714 | Yan, Kui ,Servais, Thomas,Shan, Longlong,et al. Acritarch assemblages from the Middle-Upper Ordovician in the Aksu area, northwestern margin of the Tarim Basin, Xinjiang, China[J]. NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN,2020,295(2):169-183. |
APA | Yan, Kui ,Servais, Thomas,Shan, Longlong,&Li, Jun .(2020).Acritarch assemblages from the Middle-Upper Ordovician in the Aksu area, northwestern margin of the Tarim Basin, Xinjiang, China.NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN,295(2),169-183. |
MLA | Yan, Kui ,et al."Acritarch assemblages from the Middle-Upper Ordovician in the Aksu area, northwestern margin of the Tarim Basin, Xinjiang, China".NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN 295.2(2020):169-183. |
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