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Early Miocene continental-scale sediment supply to the Gulf of Mexico Basin based on detrital zircon analysis

2016; Geological Society of America; Volume: 129; Issue: 1-2 Linguagem: Inglês

10.1130/b31465.1

1943-2674

Jie Xu, John W. Snedden, Daniel F. Stöckli, Craig S. Fulthorpe, William E. Galloway,

Geochemistry and Geologic Mapping

Research Article| January 01, 2017 Early Miocene continental-scale sediment supply to the Gulf of Mexico Basin based on detrital zircon analysis Jie Xu; Jie Xu † 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, 2275 Speedway C9000, Austin, Texas 78712, USA2Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, 10100 Burnet Road, Austin, Texas 78758, USA †jiexu@utexas.edu Search for other works by this author on: GSW Google Scholar John W. Snedden; John W. Snedden 2Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, 10100 Burnet Road, Austin, Texas 78758, USA Search for other works by this author on: GSW Google Scholar Daniel F. Stockli; Daniel F. Stockli 1Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, 2275 Speedway C9000, Austin, Texas 78712, USA Search for other works by this author on: GSW Google Scholar Craig S. Fulthorpe; Craig S. Fulthorpe 2Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, 10100 Burnet Road, Austin, Texas 78758, USA Search for other works by this author on: GSW Google Scholar William E. Galloway William E. Galloway 2Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, 10100 Burnet Road, Austin, Texas 78758, USA Search for other works by this author on: GSW Google Scholar GSA Bulletin (2017) 129 (1-2): 3–22. https://doi.org/10.1130/B31465.1 Article history rev-recd: 27 Jun 2016 accepted: 31 Jul 2016 received: 29 Nov 2016 first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Jie Xu, John W. Snedden, Daniel F. Stockli, Craig S. Fulthorpe, William E. Galloway; Early Miocene continental-scale sediment supply to the Gulf of Mexico Basin based on detrital zircon analysis. GSA Bulletin 2017;; 129 (1-2): 3–22. doi: https://doi.org/10.1130/B31465.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The early Miocene was a period of major continental margin progradation in the Gulf of Mexico Basin that accompanied prominent tectonic and climatic changes in North America. However, sediment pathways from continental upland sources to deep basinal sinks remain poorly constrained. This study presents 2192 new detrital zircon U-Pb analyses from 19 Lower Miocene samples spanning the entire northern Gulf of Mexico margin to elucidate early Miocene sediment provenance and paleodrainage systems. The U-Pb age patterns indicate that the Great Plains, southern Rocky Mountains, and mid-Cenozoic volcanic field were the major source terranes for the western-central Gulf of Mexico coast, whereas the Appalachian foreland basin and Appalachian Mountains mainly contributed sediment to the eastern Gulf of Mexico coast. Local source terranes included the Llano uplift and Edwards Plateau in central Texas and the Ouachita Mountains and foreland basin in Oklahoma and Arkansas. A comparison to previous detrital zircon studies around the Gulf of Mexico indicates that sediment recycling was important during the early Miocene.Sediment associated with major paleorivers, including the Rio Bravo, Rio Grande, Houston-Brazos, Red, Mississippi, Tombigbee, and Apalachicola Rivers, can be differentiated using the detrital zircon U-Pb analyses. These data help to better define the early Miocene source-to-sink system in the northern Gulf of Mexico, by relating the basin fill to hinterland tectonic and geological evolution. In comparison to the Paleocene–Eocene Wilcox drainage system, the early Miocene drainage system of the northern Gulf of Mexico was smaller and received less input from western Mexico arc terranes and Archean basement in Wyoming. This drainage area reduction, related to regional thermal uplift and Basin and Range–Rio Grande rifting, likely explains the reduced sediment volume of the Lower Miocene strata in the Gulf of Mexico relative to the Paleocene–Eocene Wilcox Group. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.