Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group

Detalhes bibliográficos
Autor(a) principal: Clemmensen, Lars B.
Data de Publicação: 2020
Outros Autores: Kent, Dennis V., Mau, Malte, Mateus, Octávio, Milàn, Jesper
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/117152
Resumo: 8410, the Independent Research Fund Denmark and GEUS. Constructive comments from Gunver K. Pedersen (Co-editor), Gregers Dam (reviewer), and Atle Mork (reviewer) helped to improve the paper.
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spelling Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord groupEast GreenlandLacustrine sedimentsLithostratigraphyPalaeoclimateTriassicVertebrate fossilsGeology8410, the Independent Research Fund Denmark and GEUS. Constructive comments from Gunver K. Pedersen (Co-editor), Gregers Dam (reviewer), and Atle Mork (reviewer) helped to improve the paper.The lithostratigraphy of the Triassic deposits of the Jameson Land Basin in central East Greenland is revised. The new Scoresby Land Supergroup is now composed of the Wordie Creek, Pingo Dal, Gipsdalen and Fleming Fjord Groups. This paper only deals with the lithostratigraphy of the late Early-Late Triassic continental deposits of the latter three groups with emphasis on the vertebrate-bearing Fleming Fjord Group. The new Pingo Dal Group consists of three new formations, the Rødstaken, Paradigmabjerg and Klitdal Formations (all elevated from members), the new Gipsdalen Group consists of three new formations, the Kolledalen, Solfaldsdal (with the new Gråklint Member) and Kap Seaforth Formations (all elevated from members), and the new Fleming Fjord Group is subdivided into three new formations, the Edderfugledal, Malmros Klint and Ørsted Dal Formations (all elevated from members). The Edderfugledal Formation contains two cyclic bedded, lacustrine members, a lowermost Sporfjeld Member (elevated from beds), and an uppermost Pingel Dal Member (elevated from beds). The lacustrine red beds of the Malmros Klint Formation are not subdivided. The lacustrine and fluvial Ørsted Dal Formation contains three new members. In the eastern and central part of the basin, the formation is initiated by cyclic bedded, red lacustrine mudstones of the Carlsberg Fjord Member (elevated from beds), while in the northwestern part of the basin the lowermost part of the formation is composed of grey fluvial conglomerates and sandstones with subordinate red mudstones of the Bjergkronerne Member (elevated from beds). The uppermost part of the formations in most of the basin is composed of cyclic bedded, variegated lacustrine mudstones and grey to yellowish marlstones of the Tait Bjerg Member (elevated from beds). The sediments in the Fleming Fjord Group contain remains of a rich and diverse vertebrate fauna including dinosaurs, amphibians, turtles, aeotosaurs, pterosaurs, phytosaurs and mammaliaforms. Most vertebrate bones have been found in uppermost Malmros Klint Formation, and in the Carlsberg Fjord and Tait Bjerg Members. The Norian–early Rhaetian, lacustrine Fleming Fjord Group was deposited at about 41° N on the northern part of the supercon-tinent Pangaea. Lacustrine sedimentation was controlled by seasonal as well as longer-term (orbital) variation in precipitation. Precipitation was probably brought to the basin by southwesterly winds. The lacustrine sediments of the uppermost Fleming Fjord Group show deposition during increasingly humid conditions changing the lake environment from an ephemeral lake-steppe area to a peren-nial lake. This evolution of lake environment suggests a change from a winter-wet temperate climate to one with precipitation throughout the year.GeoBioTec - Geobiociências, Geoengenharias e GeotecnologiasRUNClemmensen, Lars B.Kent, Dennis V.Mau, MalteMateus, OctávioMilàn, Jesper2021-05-05T23:27:14Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article38application/pdfhttp://hdl.handle.net/10362/117152eng0011-6297PURE: 27671563https://doi.org/10.37570/bgsd-2020-68-05info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:00:12Zoai:run.unl.pt:10362/117152Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:43:30.268415Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group
title Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group
spellingShingle Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group
Clemmensen, Lars B.
East Greenland
Lacustrine sediments
Lithostratigraphy
Palaeoclimate
Triassic
Vertebrate fossils
Geology
title_short Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group
title_full Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group
title_fullStr Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group
title_full_unstemmed Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group
title_sort Triassic lithostratigraphy of the jameson land basin (Central east greenland), with emphasis on the new fleming fjord group
author Clemmensen, Lars B.
author_facet Clemmensen, Lars B.
Kent, Dennis V.
Mau, Malte
Mateus, Octávio
Milàn, Jesper
author_role author
author2 Kent, Dennis V.
Mau, Malte
Mateus, Octávio
Milàn, Jesper
author2_role author
author
author
author
dc.contributor.none.fl_str_mv GeoBioTec - Geobiociências, Geoengenharias e Geotecnologias
RUN
dc.contributor.author.fl_str_mv Clemmensen, Lars B.
Kent, Dennis V.
Mau, Malte
Mateus, Octávio
Milàn, Jesper
dc.subject.por.fl_str_mv East Greenland
Lacustrine sediments
Lithostratigraphy
Palaeoclimate
Triassic
Vertebrate fossils
Geology
topic East Greenland
Lacustrine sediments
Lithostratigraphy
Palaeoclimate
Triassic
Vertebrate fossils
Geology
description 8410, the Independent Research Fund Denmark and GEUS. Constructive comments from Gunver K. Pedersen (Co-editor), Gregers Dam (reviewer), and Atle Mork (reviewer) helped to improve the paper.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-01-01T00:00:00Z
2021-05-05T23:27:14Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/117152
url http://hdl.handle.net/10362/117152
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0011-6297
PURE: 27671563
https://doi.org/10.37570/bgsd-2020-68-05
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 38
application/pdf
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instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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