Correlation of basinal carbonate cycles to nearshore parasequences in the late Cretaceous Greenhorn seaway, Western Interior USA

W. P. Elder, E. R. Gustason, B. B. Sageman

Research output: Contribution to journalArticle

97 Scopus citations

Abstract

In the central basin in Colorado and Kansas, these sedimentary cycles are represented by limestone-shale and marlstone-shale couplets ~0.5-1.0m in thickness. More calcareous parts of these couplets may be correlated westward into condensed, fossiliferous concretion and shell beds in proximal offshore lithofacies of Arizona and Utah. These concretion and shell beds are physically traceable farther landward (westward) into bioturbated, fossil-rich, transgressive lag deposits that bound 10-20m thick coarsening-upward progradational strand-plain deposits (parasequences) in southwestern Utah. We consider Milankovitch-style orbital forcing of climate and tectonically induced fluctuations in rates of foredeep basin subsidence as possible forcing mechanisms for these basinwide events. -from Authors

Original languageEnglish (US)
Pages (from-to)892-902
Number of pages11
JournalGeological Society of America Bulletin
Volume106
Issue number7
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Geology

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