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|Title:||Comment on ''U-Pb calcite age of the Late Permian Castile Formation, Delaware Basin: A constraint on the age of the Permian-Triassic boundary (?)'' by M.L. Becker et al. [Earth Planet. Sci. Lett. 203 (2002) 681-689]||Contributor(s):||Metcalfe, Ian (author)||Publication Date:||2004||DOI:||10.1016/S0012-821X(03)00603-4||Handle Link:||https://hdl.handle.net/1959.11/1379||Abstract:||Becker et al. in their recent paper have proposed a U-Pb calcite age of 251.5±2.8 Ma for the Castile Formation of the Delaware Basin, and infer that the age of the Permian-Triassic boundary should be younger than this age. In addition, Becker et al. imply that U-Pb ages on organic-rich calcite are more accurate than combined U-Pb zircon and Ar/Ar sanidine/biotite ages from volcanic ash falls. I here challenge the accuracy of the Castile Formation calcite age, and in particular, the proposed constraint on the age of the Permian-Triassic boundary.||Publication Type:||Journal Article||Source of Publication:||Earth and Planetary Science Letters, 217(3-4), p. 465-468||Publisher:||Pergamon||Place of Publication:||Amsterdam, The Netherlands||ISSN:||1385-013X
|Field of Research (FOR):||040303 Geochronology||Peer Reviewed:||Yes||HERDC Category Description:||C1 Refereed Article in a Scholarly Journal||Other Links:||http://www-personal.une.edu.au/~imetcal2/EPSL2004.pdf||Statistics to Oct 2018:||Visitors: 69
|Appears in Collections:||Journal Article|
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