Detrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic

U-Pb dating of detrital zircons shows that the provenance of Cretaceous-Palaeogene sandstones on Hatton and Edoras banks (SW Rockall Plateau) comprises magmatic rocks dated at c. 1800 Ma and c. 1750 Ma, respectively. Their depositional setting, first-cycle mineralogy and unimodal detrital zircon pop...

Full description

Bibliographic Details
Main Authors: Morton, Andrew, Hitchen, Kenneth, Fanning, Christopher, Yaxley, Gregory, Johnson, Howard, Ritchie, J. Derek
Format: Article in Journal/Newspaper
Language:unknown
Published: Geological Society of London 2015
Subjects:
Online Access:http://hdl.handle.net/1885/38219
id ftanucanberra:oai:digitalcollections.anu.edu.au:1885/38219
record_format openpolar
spelling ftanucanberra:oai:digitalcollections.anu.edu.au:1885/38219 2023-05-15T16:29:30+02:00 Detrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic Morton, Andrew Hitchen, Kenneth Fanning, Christopher Yaxley, Gregory Johnson, Howard Ritchie, J. Derek 2015-12-08T22:48:08Z http://hdl.handle.net/1885/38219 unknown Geological Society of London 0016-7649 http://hdl.handle.net/1885/38219 Journal of the Geological Society Journal article 2015 ftanucanberra 2015-12-28T23:26:03Z U-Pb dating of detrital zircons shows that the provenance of Cretaceous-Palaeogene sandstones on Hatton and Edoras banks (SW Rockall Plateau) comprises magmatic rocks dated at c. 1800 Ma and c. 1750 Ma, respectively. Their depositional setting, first-cycle mineralogy and unimodal detrital zircon populations suggest that these sandstones are of local origin. The zircon age data are therefore considered to provide constraints on these poorly understood areas of the Rockall Plateau. The U-Pb dates are directly comparable with U-Pb zircon crystallization ages from granitoid rocks reported from the Ketilidian Belt of southern Greenland and from the Rhinns Complex of western Britain. Hf isotopic data from the Edoras Bank sample are consistent with derivation from a juvenile Palaeoproterozoic block. In conjunction with previously reported Sm-Nd Tdm model ages from the Ketilidian Belt, Rockall Bank and the Rhinns Complex, these data extend the known distribution of a large juvenile Palaeoproterozoic terrane spanning the southern NE Atlantic. In contrast, Hf isotopic data from the Hatton Bank sample imply a large contribution from Archaean crust. The zircon population from Edoras Bank also contains sparse Mesoproterozoic grains, providing evidence for the presence of volumetrically minor Grenville-age intrusions in the southern part of the Rockall Plateau. Article in Journal/Newspaper Greenland Australian National University: ANU Digital Collections Greenland Rockall Plateau ENVELOPE(-18.833,-18.833,56.333,56.333) Rockall Bank ENVELOPE(-16.519,-16.519,55.821,55.821) Hatton Bank ENVELOPE(-18.000,-18.000,58.583,58.583) Edoras Bank ENVELOPE(-22.167,-22.167,56.000,56.000)
institution Open Polar
collection Australian National University: ANU Digital Collections
op_collection_id ftanucanberra
language unknown
description U-Pb dating of detrital zircons shows that the provenance of Cretaceous-Palaeogene sandstones on Hatton and Edoras banks (SW Rockall Plateau) comprises magmatic rocks dated at c. 1800 Ma and c. 1750 Ma, respectively. Their depositional setting, first-cycle mineralogy and unimodal detrital zircon populations suggest that these sandstones are of local origin. The zircon age data are therefore considered to provide constraints on these poorly understood areas of the Rockall Plateau. The U-Pb dates are directly comparable with U-Pb zircon crystallization ages from granitoid rocks reported from the Ketilidian Belt of southern Greenland and from the Rhinns Complex of western Britain. Hf isotopic data from the Edoras Bank sample are consistent with derivation from a juvenile Palaeoproterozoic block. In conjunction with previously reported Sm-Nd Tdm model ages from the Ketilidian Belt, Rockall Bank and the Rhinns Complex, these data extend the known distribution of a large juvenile Palaeoproterozoic terrane spanning the southern NE Atlantic. In contrast, Hf isotopic data from the Hatton Bank sample imply a large contribution from Archaean crust. The zircon population from Edoras Bank also contains sparse Mesoproterozoic grains, providing evidence for the presence of volumetrically minor Grenville-age intrusions in the southern part of the Rockall Plateau.
format Article in Journal/Newspaper
author Morton, Andrew
Hitchen, Kenneth
Fanning, Christopher
Yaxley, Gregory
Johnson, Howard
Ritchie, J. Derek
spellingShingle Morton, Andrew
Hitchen, Kenneth
Fanning, Christopher
Yaxley, Gregory
Johnson, Howard
Ritchie, J. Derek
Detrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic
author_facet Morton, Andrew
Hitchen, Kenneth
Fanning, Christopher
Yaxley, Gregory
Johnson, Howard
Ritchie, J. Derek
author_sort Morton, Andrew
title Detrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic
title_short Detrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic
title_full Detrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic
title_fullStr Detrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic
title_full_unstemmed Detrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic
title_sort detrital zircon age constraints on the provenance of sandstones on hatton bank and edoras bank, ne atlantic
publisher Geological Society of London
publishDate 2015
url http://hdl.handle.net/1885/38219
long_lat ENVELOPE(-18.833,-18.833,56.333,56.333)
ENVELOPE(-16.519,-16.519,55.821,55.821)
ENVELOPE(-18.000,-18.000,58.583,58.583)
ENVELOPE(-22.167,-22.167,56.000,56.000)
geographic Greenland
Rockall Plateau
Rockall Bank
Hatton Bank
Edoras Bank
geographic_facet Greenland
Rockall Plateau
Rockall Bank
Hatton Bank
Edoras Bank
genre Greenland
genre_facet Greenland
op_source Journal of the Geological Society
op_relation 0016-7649
http://hdl.handle.net/1885/38219
_version_ 1766019202926247936