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...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/38219 2024-01-14T10:07:22+01:00 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 http://hdl.handle.net/1885/38219 https://doi.org/10.1144/0016-76492007-179 https://openresearch-repository.anu.edu.au/bitstream/1885/38219/5/Fanning%2526Yaxley_RSES_Morton_Detrital_zircon_age_constraints.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/38219/7/01_Morton_Detrital_zircon_age_2009.pdf.jpg unknown Geological Society of London 0016-7649 http://hdl.handle.net/1885/38219 doi:10.1144/0016-76492007-179 https://openresearch-repository.anu.edu.au/bitstream/1885/38219/5/Fanning%2526Yaxley_RSES_Morton_Detrital_zircon_age_constraints.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/38219/7/01_Morton_Detrital_zircon_age_2009.pdf.jpg Journal of the Geological Society Keywords: Cretaceous crystallization mineralogy Paleogene provenance sandstone uranium-lead dating zircon Atlantic Ocean Hatton Bank Rockall Bank Journal article ftanucanberra https://doi.org/10.1144/0016-76492007-179 2023-12-15T09:38:05Z 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) Journal of the Geological Society 166 1 137 146 |
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Australian National University: ANU Digital Collections |
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ftanucanberra |
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Keywords: Cretaceous crystallization mineralogy Paleogene provenance sandstone uranium-lead dating zircon Atlantic Ocean Hatton Bank Rockall Bank |
spellingShingle |
Keywords: Cretaceous crystallization mineralogy Paleogene provenance sandstone uranium-lead dating zircon Atlantic Ocean Hatton Bank Rockall Bank 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 |
topic_facet |
Keywords: Cretaceous crystallization mineralogy Paleogene provenance sandstone uranium-lead dating zircon Atlantic Ocean Hatton Bank Rockall Bank |
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 |
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 |
url |
http://hdl.handle.net/1885/38219 https://doi.org/10.1144/0016-76492007-179 https://openresearch-repository.anu.edu.au/bitstream/1885/38219/5/Fanning%2526Yaxley_RSES_Morton_Detrital_zircon_age_constraints.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/38219/7/01_Morton_Detrital_zircon_age_2009.pdf.jpg |
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 doi:10.1144/0016-76492007-179 https://openresearch-repository.anu.edu.au/bitstream/1885/38219/5/Fanning%2526Yaxley_RSES_Morton_Detrital_zircon_age_constraints.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/38219/7/01_Morton_Detrital_zircon_age_2009.pdf.jpg |
op_doi |
https://doi.org/10.1144/0016-76492007-179 |
container_title |
Journal of the Geological Society |
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166 |
container_issue |
1 |
container_start_page |
137 |
op_container_end_page |
146 |
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1788061769645686784 |