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U-Pb geochronology and geochemistry of the McCoy Mountains Formation, southeastern California: A Cretaceous retroarc foreland basin

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U-Pb geochronology and geochemistry of the McCoy Mountains Formation, southeastern California: A Cretaceous retroarc foreland basin; 2004; Article; Journal; Bulletin of the Geological Society of America; Barth, A. P.; Wooden, J. L.; Jacobson, C. E.; Probst, K.

Summary

The timing of deposition of fluvial sediments now forming the >7-km-thick McCoy Mountains Formation is one of the key uncertainties in reconstructing the Mesozoic poleogeography of southern California and western Arizona. Ion-microprobe U-Pb geochronologic data for individual zircons from nine sandstones from the McCoy Mountains type section and six associated igneous rocks provide significant new constraints on the tectonic setting and the timing of deposition within the northwest-trending McCoy basin. U-Pb zircon data from a metavolcanic rock of the underlying Dome Rock sequence in the Palen Mountains confirm that the McCoy Mountains Formation was deposited after regional Middle to Late Jurassic arc magmatism. U-Ph zircon data from [...]

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Type Scheme Key
local-index unknown 70027391
local-pk unknown 70027391
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1130/B25288.1
series unknown Geological Society of America Bulletin

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journalGeological Society of America Bulletin
parts
typevolume
value116
typeissue
value1-2
languageEnglish
citationTypeArticle

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