Late Ordovician carbonate mounds from North Greenland: A peri-Laurentian dimension to the Boda Event?

David Alexander Taylor Harper; Jisuo Jin; Christian Mac Ørum Rasmussen

doi:10.1080/11035897.2013.865669

Late Ordovician carbonate mounds from North Greenland: A peri-Laurentian dimension to the Boda Event?

David Alexander Taylor Harper, Jisuo Jin, Christian Mac Ørum Rasmussen

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7 Citations (Scopus)

Abstract

Late Katian (Late Ordovician) carbonate mudmounds in the Turesø Formation, Peary Land, North Greenland, succeed normal marine faunas dominated by brachiopods, bryozoans, cephalopod and gastropod molluscs, aulaceratid stromatoporoids, corals and receptaculitid algae, in the Børglum River Formation, and are themselves succeeded by organic-rich, largely barren limestones. This peri-Laurentian succession suggests deteriorating environmental conditions from a normal marine to a more restricted basin during the Late Katian and Hirnantian, against a background of gradual marine regression following the peak of the Boda Warming Event. The generally low-energy depositional setting probably lay within the Inter-Tropical Convergence Zone on the equator.

Original language	English
Journal	GFF
Volume	136
Issue number	1
Pages (from-to)	95-99
Number of pages	5
ISSN	1103-5897
DOIs	https://doi.org/10.1080/11035897.2013.865669
Publication status	Published - Jan 2014

Keywords

carbonate mounds
Greenland
Katian
Late Ordovician
Peary Land

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10.1080/11035897.2013.865669

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title = "Late Ordovician carbonate mounds from North Greenland: A peri-Laurentian dimension to the Boda Event?",

abstract = "Late Katian (Late Ordovician) carbonate mudmounds in the Tures{\o} Formation, Peary Land, North Greenland, succeed normal marine faunas dominated by brachiopods, bryozoans, cephalopod and gastropod molluscs, aulaceratid stromatoporoids, corals and receptaculitid algae, in the B{\o}rglum River Formation, and are themselves succeeded by organic-rich, largely barren limestones. This peri-Laurentian succession suggests deteriorating environmental conditions from a normal marine to a more restricted basin during the Late Katian and Hirnantian, against a background of gradual marine regression following the peak of the Boda Warming Event. The generally low-energy depositional setting probably lay within the Inter-Tropical Convergence Zone on the equator.",

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T2 - A peri-Laurentian dimension to the Boda Event?

AU - Harper, David Alexander Taylor

AU - Jin, Jisuo

AU - Rasmussen, Christian Mac Ørum

PY - 2014/1

Y1 - 2014/1

N2 - Late Katian (Late Ordovician) carbonate mudmounds in the Turesø Formation, Peary Land, North Greenland, succeed normal marine faunas dominated by brachiopods, bryozoans, cephalopod and gastropod molluscs, aulaceratid stromatoporoids, corals and receptaculitid algae, in the Børglum River Formation, and are themselves succeeded by organic-rich, largely barren limestones. This peri-Laurentian succession suggests deteriorating environmental conditions from a normal marine to a more restricted basin during the Late Katian and Hirnantian, against a background of gradual marine regression following the peak of the Boda Warming Event. The generally low-energy depositional setting probably lay within the Inter-Tropical Convergence Zone on the equator.

AB - Late Katian (Late Ordovician) carbonate mudmounds in the Turesø Formation, Peary Land, North Greenland, succeed normal marine faunas dominated by brachiopods, bryozoans, cephalopod and gastropod molluscs, aulaceratid stromatoporoids, corals and receptaculitid algae, in the Børglum River Formation, and are themselves succeeded by organic-rich, largely barren limestones. This peri-Laurentian succession suggests deteriorating environmental conditions from a normal marine to a more restricted basin during the Late Katian and Hirnantian, against a background of gradual marine regression following the peak of the Boda Warming Event. The generally low-energy depositional setting probably lay within the Inter-Tropical Convergence Zone on the equator.

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KW - Late Ordovician

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Late Ordovician carbonate mounds from North Greenland: A peri-Laurentian dimension to the Boda Event?

Abstract

Keywords

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