Provenance of Pennsylvanian–Permian sedimentary rocks associated with the Ancestral Rocky Mountains orogeny in southwestern Laurentia: Implications for continental-scale Laurentian sediment transport systems
International audience The Ancestral Rocky Mountains system consists of a series of basement-cored uplifts and associated sedimentary basins that formed in southwestern Laurentia during Early Pennsylvanian-middle Permian time. This system was originally recognized by aprons of coarse, arkosic sandst...
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ftunivaixmarseil:oai:HAL:hal-03657026v1 2023-12-24T10:14:12+01:00 Provenance of Pennsylvanian–Permian sedimentary rocks associated with the Ancestral Rocky Mountains orogeny in southwestern Laurentia: Implications for continental-scale Laurentian sediment transport systems Leary, Ryan Umhoefer, Paul Smith, M. Elliot Smith, Tyson Saylor, Joel Riggs, Nancy Burr, Greg Lodes, Emma Foley, Daniel Licht, Alexis Mueller, Megan Baird, Chris New Mexico Institute of Mining and Technology New Mexico Tech (NMT) Northern Arizona University Flagstaff University of Houston University of British Columbia (UBC) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) University of Washington Seattle 2020 https://hal.science/hal-03657026 https://hal.science/hal-03657026/document https://hal.science/hal-03657026/file/Leary%20et%20al%202020%20Lithosphere.pdf https://doi.org/10.1130/l1115.1 en eng HAL CCSD Geological Society of America info:eu-repo/semantics/altIdentifier/doi/10.1130/l1115.1 hal-03657026 https://hal.science/hal-03657026 https://hal.science/hal-03657026/document https://hal.science/hal-03657026/file/Leary%20et%20al%202020%20Lithosphere.pdf doi:10.1130/l1115.1 info:eu-repo/semantics/OpenAccess ISSN: 1941-8264 EISSN: 1947-4253 Lithosphere https://hal.science/hal-03657026 Lithosphere, 2020, 12, pp.88 - 121. ⟨10.1130/l1115.1⟩ [SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy info:eu-repo/semantics/article Journal articles 2020 ftunivaixmarseil https://doi.org/10.1130/l1115.1 2023-11-28T23:35:36Z International audience The Ancestral Rocky Mountains system consists of a series of basement-cored uplifts and associated sedimentary basins that formed in southwestern Laurentia during Early Pennsylvanian-middle Permian time. This system was originally recognized by aprons of coarse, arkosic sandstone and conglomerate within the Paradox, Eagle, and Denver Basins, which surround the Front Range and Uncompahgre basement uplifts. However, substantial portions of Ancestral Rocky Mountain-adjacent basins are filled with carbonate or fine-grained quartzose material that is distinct from proximal arkosic rocks, and detrital zircon data from basins adjacent to the Ancestral Rocky Mountains have been interpreted to indicate that a substantial proportion of their clastic sediment was sourced from the Appalachian and/or Arctic orogenic belts and transported over long distances across Laurentia into Ancestral Rocky Mountain basins. In this study, we present new U-Pb detrital zircon data from 72 samples from strata within the Denver Basin, Eagle Basin, Paradox Basin, northern Arizona shelf, Pedregosa Basin, and Keeler-Lone Pine Basin spanning ~50 m.y. and compare these to published data from 241 samples from across Laurentia. Traditional visual comparison and inverse modeling methods map sediment transport pathways within the Ancestral Rocky Mountains system and indicate that proximal basins were filled with detritus eroded from nearby basement uplifts, whereas distal portions of these basins were filled with a mix of local sediment and sediment derived from marginal Laurentian sources including the Arctic Ellesmerian orogen and possibly the northern Appalachian orogen. This sediment was transported to southwestern Laurentia via a ca. 2,000-km-long longshore and aeolian system analogous to the modern Namibian coast. Deformation of the Ancestral Rocky Mountains slowed in Permian time, reducing basinal accommodation and allowing marginal clastic sources to overwhelm the system. Article in Journal/Newspaper Arctic Aix-Marseille Université: HAL Arctic Lone ENVELOPE(11.982,11.982,65.105,65.105) Keeler ENVELOPE(-63.217,-63.217,-68.850,-68.850) Lithosphere 12 1 88 121 |
institution |
Open Polar |
collection |
Aix-Marseille Université: HAL |
op_collection_id |
ftunivaixmarseil |
language |
English |
topic |
[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
spellingShingle |
[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy Leary, Ryan Umhoefer, Paul Smith, M. Elliot Smith, Tyson Saylor, Joel Riggs, Nancy Burr, Greg Lodes, Emma Foley, Daniel Licht, Alexis Mueller, Megan Baird, Chris Provenance of Pennsylvanian–Permian sedimentary rocks associated with the Ancestral Rocky Mountains orogeny in southwestern Laurentia: Implications for continental-scale Laurentian sediment transport systems |
topic_facet |
[SDU.STU.ST]Sciences of the Universe [physics]/Earth Sciences/Stratigraphy |
description |
International audience The Ancestral Rocky Mountains system consists of a series of basement-cored uplifts and associated sedimentary basins that formed in southwestern Laurentia during Early Pennsylvanian-middle Permian time. This system was originally recognized by aprons of coarse, arkosic sandstone and conglomerate within the Paradox, Eagle, and Denver Basins, which surround the Front Range and Uncompahgre basement uplifts. However, substantial portions of Ancestral Rocky Mountain-adjacent basins are filled with carbonate or fine-grained quartzose material that is distinct from proximal arkosic rocks, and detrital zircon data from basins adjacent to the Ancestral Rocky Mountains have been interpreted to indicate that a substantial proportion of their clastic sediment was sourced from the Appalachian and/or Arctic orogenic belts and transported over long distances across Laurentia into Ancestral Rocky Mountain basins. In this study, we present new U-Pb detrital zircon data from 72 samples from strata within the Denver Basin, Eagle Basin, Paradox Basin, northern Arizona shelf, Pedregosa Basin, and Keeler-Lone Pine Basin spanning ~50 m.y. and compare these to published data from 241 samples from across Laurentia. Traditional visual comparison and inverse modeling methods map sediment transport pathways within the Ancestral Rocky Mountains system and indicate that proximal basins were filled with detritus eroded from nearby basement uplifts, whereas distal portions of these basins were filled with a mix of local sediment and sediment derived from marginal Laurentian sources including the Arctic Ellesmerian orogen and possibly the northern Appalachian orogen. This sediment was transported to southwestern Laurentia via a ca. 2,000-km-long longshore and aeolian system analogous to the modern Namibian coast. Deformation of the Ancestral Rocky Mountains slowed in Permian time, reducing basinal accommodation and allowing marginal clastic sources to overwhelm the system. |
author2 |
New Mexico Institute of Mining and Technology New Mexico Tech (NMT) Northern Arizona University Flagstaff University of Houston University of British Columbia (UBC) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) University of Washington Seattle |
format |
Article in Journal/Newspaper |
author |
Leary, Ryan Umhoefer, Paul Smith, M. Elliot Smith, Tyson Saylor, Joel Riggs, Nancy Burr, Greg Lodes, Emma Foley, Daniel Licht, Alexis Mueller, Megan Baird, Chris |
author_facet |
Leary, Ryan Umhoefer, Paul Smith, M. Elliot Smith, Tyson Saylor, Joel Riggs, Nancy Burr, Greg Lodes, Emma Foley, Daniel Licht, Alexis Mueller, Megan Baird, Chris |
author_sort |
Leary, Ryan |
title |
Provenance of Pennsylvanian–Permian sedimentary rocks associated with the Ancestral Rocky Mountains orogeny in southwestern Laurentia: Implications for continental-scale Laurentian sediment transport systems |
title_short |
Provenance of Pennsylvanian–Permian sedimentary rocks associated with the Ancestral Rocky Mountains orogeny in southwestern Laurentia: Implications for continental-scale Laurentian sediment transport systems |
title_full |
Provenance of Pennsylvanian–Permian sedimentary rocks associated with the Ancestral Rocky Mountains orogeny in southwestern Laurentia: Implications for continental-scale Laurentian sediment transport systems |
title_fullStr |
Provenance of Pennsylvanian–Permian sedimentary rocks associated with the Ancestral Rocky Mountains orogeny in southwestern Laurentia: Implications for continental-scale Laurentian sediment transport systems |
title_full_unstemmed |
Provenance of Pennsylvanian–Permian sedimentary rocks associated with the Ancestral Rocky Mountains orogeny in southwestern Laurentia: Implications for continental-scale Laurentian sediment transport systems |
title_sort |
provenance of pennsylvanian–permian sedimentary rocks associated with the ancestral rocky mountains orogeny in southwestern laurentia: implications for continental-scale laurentian sediment transport systems |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03657026 https://hal.science/hal-03657026/document https://hal.science/hal-03657026/file/Leary%20et%20al%202020%20Lithosphere.pdf https://doi.org/10.1130/l1115.1 |
long_lat |
ENVELOPE(11.982,11.982,65.105,65.105) ENVELOPE(-63.217,-63.217,-68.850,-68.850) |
geographic |
Arctic Lone Keeler |
geographic_facet |
Arctic Lone Keeler |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ISSN: 1941-8264 EISSN: 1947-4253 Lithosphere https://hal.science/hal-03657026 Lithosphere, 2020, 12, pp.88 - 121. ⟨10.1130/l1115.1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1130/l1115.1 hal-03657026 https://hal.science/hal-03657026 https://hal.science/hal-03657026/document https://hal.science/hal-03657026/file/Leary%20et%20al%202020%20Lithosphere.pdf doi:10.1130/l1115.1 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1130/l1115.1 |
container_title |
Lithosphere |
container_volume |
12 |
container_issue |
1 |
container_start_page |
88 |
op_container_end_page |
121 |
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1786190801530781696 |