The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains
Annual Report Yukon Exploration and Geology 2013 Studies of biogeochemical and evolutionary change in the Neoproterozoic require a detailed understanding of stratigraphic successions and their intrabasinal correlation to integrate those records into regional and global frameworks. The early Neoprote...
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ftccsdartic:oai:HAL:insu-00985324v1 2023-05-15T17:52:26+02:00 The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains Kunzmann, Marcus Halverson Galen, P. Hodgskiss, Malcolm Sansjofre, Pierre Schumann, Dirk Macdonald, Francis A. Rainbird, Robert H Department of Earth and Planetary Sciences/Geotop McGill University = Université McGill Montréal, Canada Domaines Océaniques (LDO) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS) Department of Earth and Planetary Sciences Cambridge, USA (EPS) Harvard University Cambridge Geological Survey of Canada Ottawa (GSC Central & Northern Canada) Geological Survey of Canada - Office (GSC) Natural Resources Canada (NRCan)-Natural Resources Canada (NRCan) 2014-04-01 https://hal-insu.archives-ouvertes.fr/insu-00985324 en eng HAL CCSD insu-00985324 https://hal-insu.archives-ouvertes.fr/insu-00985324 https://hal-insu.archives-ouvertes.fr/insu-00985324 2014, pp.93-107 [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/other Other publications 2014 ftccsdartic 2021-10-24T13:33:17Z Annual Report Yukon Exploration and Geology 2013 Studies of biogeochemical and evolutionary change in the Neoproterozoic require a detailed understanding of stratigraphic successions and their intrabasinal correlation to integrate those records into regional and global frameworks. The early Neoproterozoic Fifteenmile Group in the Ogilvie Mountains has previously been shown to archive important information on the evolution of the biosphere, including ocean redox and early evolution of eukaryotes. Here, we formally define the Chandindu Formation, a 150 to 420-m-thick siltstone-dominated mixed carbonate-siliciclastic succession of the lower Fifteenmile Group in the Coal Creek and Hart River inliers. We present ten sections of the Chandindu Formation and propose a type section and formalization to promote the development of a consistent stratigraphic framework for Proterozoic successions in northwest Canada. The Chandindu Formation begins with muddy tidal flat facies, which are succeeded by shale-siltstonesandstone coarsening-upward cycles deposited in a predominantly subtidal environment. However, carbonate occurrences throughout the entire unit suggest localized carbonate buildups, likely nucleated on fault-bound paleohighs where siliciclastic background sedimentation was low. These paleohighs originated from rift-inherited complex basin topography and syn-depositional faulting during deposition of the upper Chandindu Formation. Other/Unknown Material Ogilvie Mountains Yukon Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Canada Hart River ENVELOPE(-136.382,-136.382,65.854,65.854) Ogilvie ENVELOPE(-139.746,-139.746,63.563,63.563) Ogilvie Mountains ENVELOPE(-138.254,-138.254,64.583,64.583) Yukon |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes Kunzmann, Marcus Halverson Galen, P. Hodgskiss, Malcolm Sansjofre, Pierre Schumann, Dirk Macdonald, Francis A. Rainbird, Robert H The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains |
topic_facet |
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE.MCG]Environmental Sciences/Global Changes |
description |
Annual Report Yukon Exploration and Geology 2013 Studies of biogeochemical and evolutionary change in the Neoproterozoic require a detailed understanding of stratigraphic successions and their intrabasinal correlation to integrate those records into regional and global frameworks. The early Neoproterozoic Fifteenmile Group in the Ogilvie Mountains has previously been shown to archive important information on the evolution of the biosphere, including ocean redox and early evolution of eukaryotes. Here, we formally define the Chandindu Formation, a 150 to 420-m-thick siltstone-dominated mixed carbonate-siliciclastic succession of the lower Fifteenmile Group in the Coal Creek and Hart River inliers. We present ten sections of the Chandindu Formation and propose a type section and formalization to promote the development of a consistent stratigraphic framework for Proterozoic successions in northwest Canada. The Chandindu Formation begins with muddy tidal flat facies, which are succeeded by shale-siltstonesandstone coarsening-upward cycles deposited in a predominantly subtidal environment. However, carbonate occurrences throughout the entire unit suggest localized carbonate buildups, likely nucleated on fault-bound paleohighs where siliciclastic background sedimentation was low. These paleohighs originated from rift-inherited complex basin topography and syn-depositional faulting during deposition of the upper Chandindu Formation. |
author2 |
Department of Earth and Planetary Sciences/Geotop McGill University = Université McGill Montréal, Canada Domaines Océaniques (LDO) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Observatoire des Sciences de l'Univers-Institut d'écologie et environnement-Centre National de la Recherche Scientifique (CNRS) Department of Earth and Planetary Sciences Cambridge, USA (EPS) Harvard University Cambridge Geological Survey of Canada Ottawa (GSC Central & Northern Canada) Geological Survey of Canada - Office (GSC) Natural Resources Canada (NRCan)-Natural Resources Canada (NRCan) |
format |
Other/Unknown Material |
author |
Kunzmann, Marcus Halverson Galen, P. Hodgskiss, Malcolm Sansjofre, Pierre Schumann, Dirk Macdonald, Francis A. Rainbird, Robert H |
author_facet |
Kunzmann, Marcus Halverson Galen, P. Hodgskiss, Malcolm Sansjofre, Pierre Schumann, Dirk Macdonald, Francis A. Rainbird, Robert H |
author_sort |
Kunzmann, Marcus |
title |
The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains |
title_short |
The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains |
title_full |
The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains |
title_fullStr |
The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains |
title_full_unstemmed |
The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains |
title_sort |
early neoproterozoic chandindu formation of the fifteenmile group in the ogilvie mountains |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal-insu.archives-ouvertes.fr/insu-00985324 |
long_lat |
ENVELOPE(-136.382,-136.382,65.854,65.854) ENVELOPE(-139.746,-139.746,63.563,63.563) ENVELOPE(-138.254,-138.254,64.583,64.583) |
geographic |
Canada Hart River Ogilvie Ogilvie Mountains Yukon |
geographic_facet |
Canada Hart River Ogilvie Ogilvie Mountains Yukon |
genre |
Ogilvie Mountains Yukon |
genre_facet |
Ogilvie Mountains Yukon |
op_source |
https://hal-insu.archives-ouvertes.fr/insu-00985324 2014, pp.93-107 |
op_relation |
insu-00985324 https://hal-insu.archives-ouvertes.fr/insu-00985324 |
_version_ |
1766159866186956800 |