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

Late Katian (Late Ordovician) carbonate mudmounds in the TuresO 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 BOrglum River Formation, a...

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Bibliographic Details
Published in:GFF
Main Authors: Harper, David Alexander Taylor, Jin, Jisuo, Rasmussen, Christian
Format: Article in Journal/Newspaper
Language:English
Published: Taylor & Francis 2014
Subjects:
Geology
carbonate mounds
Katian
Late Ordovician
Peary Land
Greenland
Boda
Peary
North Greenland
Online Access:https://lup.lub.lu.se/record/4559593
https://doi.org/10.1080/11035897.2013.865669
Description
Summary:Late Katian (Late Ordovician) carbonate mudmounds in the TuresO 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 BOrglum 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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