The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank
Cambrian–Devonian sedimentary rocks of the northern Canadian Cordillera record both the establishment and demise of the Great American Carbonate Bank, a widespread carbonate platform system that fringed the ancestral continental margins of North America (Laurentia). Here, we present a new examinatio...
Published in: | Canadian Journal of Earth Sciences |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/cjes-2020-0017 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjes-2020-0017 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjes-2020-0017 |
id |
crcansciencepubl:10.1139/cjes-2020-0017 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/cjes-2020-0017 2024-10-20T14:11:11+00:00 The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank Strauss, Justin V. Fraser, Tiffani Melchin, Michael J. Allen, Tyler J. Malinowski, Joseph Feng, Xiahong Taylor, John F. Day, James Gill, Benjamin C. Sperling, Erik A. 2020 http://dx.doi.org/10.1139/cjes-2020-0017 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjes-2020-0017 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjes-2020-0017 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 57, issue 10, page 1193-1219 ISSN 0008-4077 1480-3313 journal-article 2020 crcansciencepubl https://doi.org/10.1139/cjes-2020-0017 2024-09-27T04:07:25Z Cambrian–Devonian sedimentary rocks of the northern Canadian Cordillera record both the establishment and demise of the Great American Carbonate Bank, a widespread carbonate platform system that fringed the ancestral continental margins of North America (Laurentia). Here, we present a new examination of the deep-water Road River Group of the Richardson Mountains, Yukon, Canada, which was deposited in an intra-platformal embayment or seaway within the Great American Carbonate Bank called the Richardson trough. Eleven detailed stratigraphic sections through the Road River Group along the upper canyon of the Peel River are compiled and integrated with geological mapping, facies analysis, carbonate and organic carbon isotope chemostratigraphy, and new biostratigraphic results to formalize four new formations within the type area of the Richardson Mountains (Cronin, Mount Hare, Tetlit, and Vittrekwa). We recognize nine mixed carbonate and siliciclastic deep-water facies associations in the Road River Group and propose these strata were deposited in basin-floor to slope environments. New biostratigraphic data suggest the Road River Group spans the late Cambrian (Furongian) – Middle Devonian (Eifelian), and new chemostratigraphic data record multiple global carbon isotopic events, including the late Cambrian Steptoean positive carbon isotope excursion, the Late Ordovician Guttenberg excursion, the Silurian Aeronian, Valgu, Mulde (mid-Homerian), Ireviken (early Sheinwoodian), and Lau excursions, and the Early Devonian Klonk excursion. Together, these new data not only help clarify nomenclatural debate centered around the Road River Group, but also provide critical new sedimentological, biostratigraphic, and isotopic data for these widely distributed rocks of the northern Canadian Cordillera. Article in Journal/Newspaper Peel River Yukon Canadian Science Publishing Yukon Canada Richardson Mountains ENVELOPE(-136.171,-136.171,67.000,67.000) Peel River ENVELOPE(-135.005,-135.005,67.000,67.000) Road River ENVELOPE(-134.938,-134.938,66.833,66.833) Mount Hare ENVELOPE(-136.205,-136.205,66.630,66.630) Canadian Journal of Earth Sciences 57 10 1193 1219 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Cambrian–Devonian sedimentary rocks of the northern Canadian Cordillera record both the establishment and demise of the Great American Carbonate Bank, a widespread carbonate platform system that fringed the ancestral continental margins of North America (Laurentia). Here, we present a new examination of the deep-water Road River Group of the Richardson Mountains, Yukon, Canada, which was deposited in an intra-platformal embayment or seaway within the Great American Carbonate Bank called the Richardson trough. Eleven detailed stratigraphic sections through the Road River Group along the upper canyon of the Peel River are compiled and integrated with geological mapping, facies analysis, carbonate and organic carbon isotope chemostratigraphy, and new biostratigraphic results to formalize four new formations within the type area of the Richardson Mountains (Cronin, Mount Hare, Tetlit, and Vittrekwa). We recognize nine mixed carbonate and siliciclastic deep-water facies associations in the Road River Group and propose these strata were deposited in basin-floor to slope environments. New biostratigraphic data suggest the Road River Group spans the late Cambrian (Furongian) – Middle Devonian (Eifelian), and new chemostratigraphic data record multiple global carbon isotopic events, including the late Cambrian Steptoean positive carbon isotope excursion, the Late Ordovician Guttenberg excursion, the Silurian Aeronian, Valgu, Mulde (mid-Homerian), Ireviken (early Sheinwoodian), and Lau excursions, and the Early Devonian Klonk excursion. Together, these new data not only help clarify nomenclatural debate centered around the Road River Group, but also provide critical new sedimentological, biostratigraphic, and isotopic data for these widely distributed rocks of the northern Canadian Cordillera. |
format |
Article in Journal/Newspaper |
author |
Strauss, Justin V. Fraser, Tiffani Melchin, Michael J. Allen, Tyler J. Malinowski, Joseph Feng, Xiahong Taylor, John F. Day, James Gill, Benjamin C. Sperling, Erik A. |
spellingShingle |
Strauss, Justin V. Fraser, Tiffani Melchin, Michael J. Allen, Tyler J. Malinowski, Joseph Feng, Xiahong Taylor, John F. Day, James Gill, Benjamin C. Sperling, Erik A. The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank |
author_facet |
Strauss, Justin V. Fraser, Tiffani Melchin, Michael J. Allen, Tyler J. Malinowski, Joseph Feng, Xiahong Taylor, John F. Day, James Gill, Benjamin C. Sperling, Erik A. |
author_sort |
Strauss, Justin V. |
title |
The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank |
title_short |
The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank |
title_full |
The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank |
title_fullStr |
The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank |
title_full_unstemmed |
The Road River Group of northern Yukon, Canada: early Paleozoic deep-water sedimentation within the Great American Carbonate Bank |
title_sort |
road river group of northern yukon, canada: early paleozoic deep-water sedimentation within the great american carbonate bank |
publisher |
Canadian Science Publishing |
publishDate |
2020 |
url |
http://dx.doi.org/10.1139/cjes-2020-0017 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjes-2020-0017 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjes-2020-0017 |
long_lat |
ENVELOPE(-136.171,-136.171,67.000,67.000) ENVELOPE(-135.005,-135.005,67.000,67.000) ENVELOPE(-134.938,-134.938,66.833,66.833) ENVELOPE(-136.205,-136.205,66.630,66.630) |
geographic |
Yukon Canada Richardson Mountains Peel River Road River Mount Hare |
geographic_facet |
Yukon Canada Richardson Mountains Peel River Road River Mount Hare |
genre |
Peel River Yukon |
genre_facet |
Peel River Yukon |
op_source |
Canadian Journal of Earth Sciences volume 57, issue 10, page 1193-1219 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjes-2020-0017 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
57 |
container_issue |
10 |
container_start_page |
1193 |
op_container_end_page |
1219 |
_version_ |
1813451370079977472 |