The geology of the Centrumsø area of Kronprins Christian Land, northeast Greenland, and lithological constraints on speleogenesis
The cave-bearing limestones of Kronprins Christian Land, northeast Greenland, were deposited on the Laurentian craton, on a sector of the margin referred to the Franklinian Basin. A 1.4km succession of Ordovician–Silurian carbonates rests unconformably on Lower Cambrian sandstones and Neoproterozoic...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
British Cave Research Association
2020
|
Subjects: | |
Online Access: | https://doi.org/10.5281/zenodo.6812358 https://ora.ox.ac.uk/objects/uuid:a4831527-7e37-480f-a43d-23b29d92b0b2 |
id |
ftuloxford:oai:ora.ox.ac.uk:uuid:a4831527-7e37-480f-a43d-23b29d92b0b2 |
---|---|
record_format |
openpolar |
spelling |
ftuloxford:oai:ora.ox.ac.uk:uuid:a4831527-7e37-480f-a43d-23b29d92b0b2 2024-09-15T18:09:04+00:00 The geology of the Centrumsø area of Kronprins Christian Land, northeast Greenland, and lithological constraints on speleogenesis Smith, MP Rasmussen, JA 2020-06-23 https://doi.org/10.5281/zenodo.6812358 https://ora.ox.ac.uk/objects/uuid:a4831527-7e37-480f-a43d-23b29d92b0b2 eng eng British Cave Research Association doi:10.5281/zenodo.6812358 https://ora.ox.ac.uk/objects/uuid:a4831527-7e37-480f-a43d-23b29d92b0b2 https://doi.org/10.5281/zenodo.6812358 info:eu-repo/semantics/openAccess CC Attribution-NonCommercial (CC BY-NC) Journal article 2020 ftuloxford https://doi.org/10.5281/zenodo.6812358 2024-08-05T14:07:49Z The cave-bearing limestones of Kronprins Christian Land, northeast Greenland, were deposited on the Laurentian craton, on a sector of the margin referred to the Franklinian Basin. A 1.4km succession of Ordovician–Silurian carbonates rests unconformably on Lower Cambrian sandstones and Neoproterozoic sediments, and the carbonate succession is overlain conformably by late Llandovery (Silurian) turbidites that mark the collapse of the continental shelf at the onset of Caledonian tectonics, due to loading by thrust sheets and their erosional products. The cave-bearing limestones form a thin-skinned duplex that sits beneath the Vandredalen thrust sheet, which in turn lies in the footwall of a major fault that bounds exhumed, deep crustal rocks. Despite the thickness of the Lower Palaeozoic succession, most of the caves are concentrated in a thin interval comprising the subtidal–peritidal carbonates of the Odins Fjord Formation and the overlying reef limestones of the Samuelsen Høj Formation (both late Llandovery, Silurian). Caves are found only in the vicinity of the Samuelsen Høj reefs despite extensive exploration of the area as part of the regional mapping programme and the Greenland Caves Project, suggesting a possible genetic link even for those caves developed entirely within the Odins Fjord Formation. Article in Journal/Newspaper Greenland Kronprins Christian land ORA - Oxford University Research Archive |
institution |
Open Polar |
collection |
ORA - Oxford University Research Archive |
op_collection_id |
ftuloxford |
language |
English |
description |
The cave-bearing limestones of Kronprins Christian Land, northeast Greenland, were deposited on the Laurentian craton, on a sector of the margin referred to the Franklinian Basin. A 1.4km succession of Ordovician–Silurian carbonates rests unconformably on Lower Cambrian sandstones and Neoproterozoic sediments, and the carbonate succession is overlain conformably by late Llandovery (Silurian) turbidites that mark the collapse of the continental shelf at the onset of Caledonian tectonics, due to loading by thrust sheets and their erosional products. The cave-bearing limestones form a thin-skinned duplex that sits beneath the Vandredalen thrust sheet, which in turn lies in the footwall of a major fault that bounds exhumed, deep crustal rocks. Despite the thickness of the Lower Palaeozoic succession, most of the caves are concentrated in a thin interval comprising the subtidal–peritidal carbonates of the Odins Fjord Formation and the overlying reef limestones of the Samuelsen Høj Formation (both late Llandovery, Silurian). Caves are found only in the vicinity of the Samuelsen Høj reefs despite extensive exploration of the area as part of the regional mapping programme and the Greenland Caves Project, suggesting a possible genetic link even for those caves developed entirely within the Odins Fjord Formation. |
format |
Article in Journal/Newspaper |
author |
Smith, MP Rasmussen, JA |
spellingShingle |
Smith, MP Rasmussen, JA The geology of the Centrumsø area of Kronprins Christian Land, northeast Greenland, and lithological constraints on speleogenesis |
author_facet |
Smith, MP Rasmussen, JA |
author_sort |
Smith, MP |
title |
The geology of the Centrumsø area of Kronprins Christian Land, northeast Greenland, and lithological constraints on speleogenesis |
title_short |
The geology of the Centrumsø area of Kronprins Christian Land, northeast Greenland, and lithological constraints on speleogenesis |
title_full |
The geology of the Centrumsø area of Kronprins Christian Land, northeast Greenland, and lithological constraints on speleogenesis |
title_fullStr |
The geology of the Centrumsø area of Kronprins Christian Land, northeast Greenland, and lithological constraints on speleogenesis |
title_full_unstemmed |
The geology of the Centrumsø area of Kronprins Christian Land, northeast Greenland, and lithological constraints on speleogenesis |
title_sort |
geology of the centrumsø area of kronprins christian land, northeast greenland, and lithological constraints on speleogenesis |
publisher |
British Cave Research Association |
publishDate |
2020 |
url |
https://doi.org/10.5281/zenodo.6812358 https://ora.ox.ac.uk/objects/uuid:a4831527-7e37-480f-a43d-23b29d92b0b2 |
genre |
Greenland Kronprins Christian land |
genre_facet |
Greenland Kronprins Christian land |
op_relation |
doi:10.5281/zenodo.6812358 https://ora.ox.ac.uk/objects/uuid:a4831527-7e37-480f-a43d-23b29d92b0b2 https://doi.org/10.5281/zenodo.6812358 |
op_rights |
info:eu-repo/semantics/openAccess CC Attribution-NonCommercial (CC BY-NC) |
op_doi |
https://doi.org/10.5281/zenodo.6812358 |
_version_ |
1810446458072072192 |