The COSC-2 drill core and its well-preserved lower Palaeozoic sedimentary succession - an unexpected treasure beneath the Caledonian nappes
文献类型：期刊论文
| 作者 | Lehnert, Oliver1,2; Almqvist, Bjarne3; Anderson, Mark4,5; Andersson, Jenny3,6; Cuthbert, Simon7; Calner, Mikael8; Carter, Isabel7,9; Callegari, Riccardo7,9; Juhlin, Christopher3; Lorenz, Henning3 |
| 刊名 | ESTONIAN JOURNAL OF EARTH SCIENCES
 |
| 出版日期 | 2024 |
| 卷号 | 73期号:2页码:134-140 |
| 关键词 | Caledonian Orogen Scandinavian Caledonides (COSC) ICDP Baltica Cambrian Ordovician Sweden |
| ISSN号 | 1736-4728 |
| DOI | 10.3176/earth.2024.13 |
| 通讯作者 | Lehnert, Oliver(oliver.lehnert@fau.de) |
| 英文摘要 | The Collisional Orogeny in the Scandinavian Caledonides (COSC) project focuses on processes related to the closure of the Iapetus Ocean, causing the Ordovician-Silurian continent- continent collision between Baltica and Laurentia. The rock succession in the second drill core (COSC-2) from the J & auml;mt land County, central Sweden, provides the base for detailed sedi- mentological, stratigraphic, geophysical, geochemical, geothermal and structural studies. The basement, comprising 1.66-1.65 Ga Transscandinavian Igneous Belt porphyries intruded by 1.47 Ga and 1.27-1.26 Ga mafic dykes and sills, is heavily weathered towards the top. Here it grades into typical saprock and saprolite (including immature soil reflecting the sub-Cambrian peneplain). The overlying sedimentary sequence starts with basal conglomerates and heterogeneous sediments with shell fragments, indicating an early Cambrian rather than a Neoproterozoic age for the marine transgression in the area. The developing early Cambrian basin was rapidly filled, initially by mostly coarse-grained sediment gravity flows. These strata are covered by sandstone turbidites that show an upward transition into the Alum Shale Formation, representing a tectonically quieter period (mid-Cambrian/Maolingian to Early Ordovician/Tremadocian). The upper part of the Alum Shale Formation is overlain by a late Early Ordovician turbidite succession. Local sources of sediments below the Alum Shale Formation and the extended deposition period may indicate continuous sedimentation in a pull-apart basin pre served in a window beneath the Caledonian thrust sheets. |
| WOS关键词 | SCANDINAVIAN CALEDONIDES ; BALTICA ; OROGEN |
| 资助项目 | ICDP ; Deutsche Forschungsgemein schaft[DFG 867/121] ; Deutsche Forschungsgemein schaft[131] ; Deutsche Forschungsgemein schaft[132] ; National Science Centre, Poland[2018/29/B/ST10/02315] ; National Science Centre, Poland[2019/33/B/ST10/01728] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001348024200001 |
| 出版者 | ESTONIAN ACAD PUBLISHERS |
| 资助机构 | ICDP ; Deutsche Forschungsgemein schaft ; National Science Centre, Poland |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/44522]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Lehnert, Oliver |
| 作者单位 | 1.Friedrich Alexander Univ Erlangen Nurnberg FAU, Geozent Nordbayern, Schlossgarten 5, D-91054 Erlangen, Germany 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Beijing East Rd 39, Nanjing 210008, Peoples R China 3.Uppsala Univ, Dept Earth Sci, Geophys, Geoctr, Villavagen 16, S-75236 Uppsala, Sweden 4.Univ Plymouth, Sch Geog Earth & Environm Sci, Portland Sq Bldg, Plymouth PL4 8AA, England 5.Univ Hull, Sch Biol Biomed & Environm Sci, Cottingham Rd, Kingston Upon Hull HU6 7RX, England 6.Geol Survey Sweden, Villavagen 18, S-75236 Uppsala, Sweden 7.AGH Univ Sci & Technol, Fac Geol Geophys & Environm Protect, Al Mickiewicza 30, PL-30059 Krakow, Poland 8.Lund Univ, Dept Geol, Solvegatan 12, S-22362 Lund, Sweden 9.Uppsala Univ, Dept Earth Sci Minerol Petrol & Tecton, Petrol & Tecton, Villavagen 16, S-75236 Uppsala, Sweden 10.Swiss Fed Inst Technol, Geol Inst, Dept Earth Sci, NO E 63,Sonneggstr 5, CH-8092 Zurich, Switzerland |
| 推荐引用方式 GB/T 7714 | Lehnert, Oliver,Almqvist, Bjarne,Anderson, Mark,et al. The COSC-2 drill core and its well-preserved lower Palaeozoic sedimentary succession - an unexpected treasure beneath the Caledonian nappes[J]. ESTONIAN JOURNAL OF EARTH SCIENCES,2024,73(2):134-140. |
| APA | Lehnert, Oliver.,Almqvist, Bjarne.,Anderson, Mark.,Andersson, Jenny.,Cuthbert, Simon.,...&Ziemniak, Grzegorz.(2024).The COSC-2 drill core and its well-preserved lower Palaeozoic sedimentary succession - an unexpected treasure beneath the Caledonian nappes.ESTONIAN JOURNAL OF EARTH SCIENCES,73(2),134-140. |
| MLA | Lehnert, Oliver,et al."The COSC-2 drill core and its well-preserved lower Palaeozoic sedimentary succession - an unexpected treasure beneath the Caledonian nappes".ESTONIAN JOURNAL OF EARTH SCIENCES 73.2(2024):134-140. |
入库方式： OAI收割
来源：南京地质古生物研究所
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