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

dc.contributor.authorMorton, Andrew
dc.contributor.authorHitchen, Kenneth
dc.contributor.authorFanning, Christopher
dc.contributor.authorYaxley, Gregory
dc.contributor.authorJohnson, Howard
dc.contributor.authorRitchie, J. Derek
dc.date.accessioned2015-12-08T22:48:08Z
dc.date.issued2009
dc.date.updated2016-02-24T10:28:27Z
dc.description.abstractU-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.
dc.identifier.issn0016-7649
dc.identifier.urihttp://hdl.handle.net/1885/38219
dc.publisherGeological Society of London
dc.sourceJournal of the Geological Society
dc.subjectKeywords: Cretaceous; crystallization; mineralogy; Paleogene; provenance; sandstone; uranium-lead dating; zircon; Atlantic Ocean; Hatton Bank; Rockall Bank
dc.titleDetrital zircon age constraints on the provenance of sandstones on Hatton Bank and Edoras Bank, NE Atlantic
dc.typeJournal article
local.bibliographicCitation.lastpage146
local.bibliographicCitation.startpage137
local.contributor.affiliationMorton, Andrew, HM Research Associates Ltd
local.contributor.affiliationHitchen, Kenneth, British Geological Survey
local.contributor.affiliationFanning, Christopher, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationYaxley, Gregory, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationJohnson, Howard, British Geological Survey
local.contributor.affiliationRitchie, J. Derek, British Geological Survey
local.contributor.authoremailu4029993@anu.edu.au
local.contributor.authoruidFanning, Christopher, u4029993
local.contributor.authoruidYaxley, Gregory, u4039347
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor040303 - Geochronology
local.identifier.absfor040399 - Geology not elsewhere classified
local.identifier.ariespublicationu4027924xPUB159
local.identifier.citationvolume166
local.identifier.doi10.1144/0016-76492007-179
local.identifier.scopusID2-s2.0-69249199544
local.identifier.thomsonID000262572600013
local.identifier.uidSubmittedByu4027924
local.type.statusPublished Version

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