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Articles reprinted from transactions of the Gulf Coast Association of Geological Societies.
|Other titles||Transactions of the Gulf Coast Association of Geological Societies.|
|Statement||compiled byEdward C. Roy.|
|Series||Readings in Gulf Coast geology -- vol.5|
|Contributions||Roy, Edward C.|
Download Holocene sediments of the Gulf of Mexico basin
Get this from a library. Holocene sediments of the Gulf of Mexico basin. [Edward C Roy; Gulf Coast Association of Geological Societies.;]. Holocene Marine Sedimentation in the North Sea Basin. Editor (s): S.‐D. Nio. Shüttenhelm. Van Weering. First published December Print ISBN |Online ISBN |DOI/ Copyright © The International Association of Sedimentologists.
The Holocene sediments on the northwest shelf of the Gulf of Mexico were formed in interdeltaic as well as deltaic areas during the postglacial rise of the sea and during its stillstand since it reached its present level.
In an interdeltaic area of relatively minor sedimentation off the Texas coast, the Sabine-High Island area, 11 lithotypes were defined during a three-dimensional study of the Holocene sediments. Map showing the distribution and thickness of Holocene sediment on the northwest Gulf of Mexico.
The greatest thickness is on the south Texas shelf (from Holmes ) Muddy sand and sandy mud with mean grain sizes mostly around Φ are found west of the ship channel into Houston (White et al. ).Cited by: 6.
Defined by the updip limit of the first basin-wide depositional unit, the Louann Salt, the Gulf of Mexico sedimentary basin extends from the southern US coastal plain to southern Mexico, Chiapas and Tabasco regions, and east across Yucatán to Cuba, the Florida Straits, and onshore Florida. The Holocene (Recent) sediments are divided into marine transgressive basal nearshore sands and shelf facies muds (silty clays and clayey silts).
The basal sands are exposed at the surface near the shore line and across almost the entire shelf off the Rio Grande, off. The basin contains a succession of Late Jurassic through Holocene strata that is as much as 20 km thick. Sediment supply from the North American continent has filled much of the northern Gulf of Mexico basin with prograding shelf-margin and slope sediments.
Postrift depositional history occurred in seven phases: 1. Late Holocene Climate Variability From Northern Gulf of Mexico Richey, Julie N., "Late Holocene Climate Variability From Northern Gulf of Mexico Sediments: Merging Inorganic and Molecular Organic Geochemical Proxies" ().
Graduate Theses and Dissertations. for the Pigmy Basin, Gulf of Mexico 55 Illustration of Mixed Layer and. The Gulf of Mexico is a small ocean basin lying between the North American plate and the Yucatan block.
Following initiation in the Middle Jurassic, sea-floor spreading continued approximately 25Myr. In the Alfonso Basin, the origin of laminated sediments is due mainly to a depositional cycle regulated by pluvial flux (Molina-Cruz et al., ).
In this study, a sequence of laminated sediments from Alfonso Basin has been analyzed in order to provide a climate and ocean millennial-scale scenario during the middle and late Holocene.
Abstract. The Gulf of Mexico basin is a roughly circular structural basin that has been filled with 0 to 15 km of sedimentary rocks ranging in age from Late Triassic to Holocene. The crust beneath the central part of the basin is oceanic in character; this is surrounded by continental crust, which underneath much of the basin has been greatly attenuated by rift-related extension (Worzel and Burke, ; Buffler.
Gulf PetroLink; Mineralogical Society of Great Britain and Ireland; Book Chapter Nearshore Holocene Stratigraphy, Northern Gulf of Mexico: Integration of Regional Geologic Studies Author(s) Jack L.
Kindinger Jack L. Kindinger U.S. Geological Survey Center for Coastal Geology Fourth Street South St. Petersburg Florida Sediments with anomalously high porosity, in turn, induce low thermal conductivities and so tend to act as a thermal insulator to the flow of heat. In the Gulf of Mexico basin (Gulf basin), the generation of overpressure is caused mainly by the inability of pore pressure fluids to escape at a rate commensurate with sedimentation.
The Gulf of Mexico (GOM) is a marginal sea of the Atlantic Ocean bordered by five states of the United States on the northern and the eastern border, five Mexican states on its western and southern border, and Cuba to the southeast (Fig. ).The GOM is ninth, fifth, and ninth among oceans and semienclosed seas in terms of its area (1, km 2), average depth ( m), and volume.
With regards to the Bay of Bengal, the Himalayas provide a mass of sediment into the Bay. With the Rockies to the west and the Appalachians to the east sediments get focused into the Gulf of Mexico.
Also, rivers change a lot over time and so the Gulf hasn't just been filling sediments. As mentioned above, the pre-rift stratigraphy of the central Gulf of Mexico basin, which now lies beneath nearly 20 kilometers of sediment deposited during the Jurassic through the Holocene, is made up primarily of extensional graben formations filled with "red beds," basalt flows, and diabase dikes and sills deposited and intruded during the break-up of Pangaea and the explosion of the Central Atlantic.
Anoxic sediments in Orca Basin, northern Gulf of Mexico (water depth m) provide late Quaternary planktonic foraminiferal and paleoclimatic records of remarkably high resolution (~ yrs). Black, organic-rich, strongly laminated, unbioturbated muds of Orca Basin contrast with grayish, organic-poor, bioturbated sediments immediately outside.
The heavy mineral assemblages and distributive provinces of most sources can be recognized in the Holocene sediments of the northern Gulf of Mexico. Five heavy mineral provinces have been established, the eastern Gulf, Mississippi, western Gulf, Texas coast, and Rio Grande provinces.
Sediments of the Gulf of Mexico basin are the focus or emphasis of this chapter, and discussions are restricted primarily to surface sediments and only to Holocene sediments where subsurface materials are included. Richard A. Davis, who has studied the sediments and coastal geology of the Gulf of Mexico for more than 45 years, is author of this.
Holocene Continental Flood Events in marine sediments of the Gulf of Mexico Richard Z. Poore and Liana M. Wright U.S. Geological Survey, MS A National Center, Reston VA Introduction This report contains data and initial interpretations from a reconnaissance study of Holocene marine sediments recovered from the Pigmy Basin on the continental slope off Louisiana (Fig.
The central part of Orca Basin, an intraslope basin in the northwest Gulf of Mexico, is anoxic and hypersaline. High-resolution seismic profiles show deformed parallel reflectors along the periphery of the basin, diffractions and indications of slump scars on the slopes, and chaotic reflectors on the basin floor.
Holocene continental flood events in marine sediments of the Gulf of Mexico (OCoLC) Print version: Poore, Richard Z. Holocene continental flood events in marine sediments of the Gulf of Mexico (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type.
The wet Pleistocene−Holocene transition and early Holocene was contemporary with warmer conditions in the Gulf of California. We suggest that the Atlantic had minimal influence on the summer precipitation of the western part of sub‐tropical northern Mexico and that the source of.
Hurricanes pose a considerable threat to coastal communities along the Atlantic seaboard and in the Gulf of Mexico. The complex role of ocean and atmospheric dynamics in controlling storm frequency and intensity, and how these relationships could be affected by climate change, remains uncertain.
To better predict how storms will impact coastal communities, it is vital to constrain their past. Previous studies in the Caribbean Sea and Gulf of Mexico show evidence of linkages between the position of the ITCZ and changes in planktonic foraminiferal flux, shell chemistry, and sediment geochemistry during the Holocene.
The main objective of this project, to calibrate sediment proxy records, will lead to a better understanding of past changes in the position of the Intertropical Convergence. Holocene continental flood events in marine sediments of the Gulf of Mexico (OCoLC) Online version: Poore, Richard Z.
Holocene continental flood events in marine sediments of the Gulf of Mexico (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors.
The Ursa Basin, at ~1, m depth on the Gulf of Mexico continental slope, contains numerous Mass Transport Deposits (MTDs) of Pleistocene to Holocene age. IODP Expedition drilled three sites through several of these MTDs and encompassing sediments. 1 Five principal and three secondary, long‐lived, extrabasinal fluvial–deltaic axes provided the bulk of the sediment that infilled the northern Gulf basin.
2 Paleocene through to middle Eocene pulses of Laramide uplift along the Central and Southern Rockies and Sierra Madre Oriental supported the early Cenozoic depositional episodes. In this study we assessed changes in the contribution of terrigenous organic matter (OM) to the Gulf of Mexico over the course of the last deglaciation (the last 25 kyr).
To this end, we combined optical kerogen analyses with bulk sedimentary, biomarker, and compound-specific carbon isotope analyses. Samples were obtained from core MD from Orca Basin ( m water depth at 26°N. Marine Isotope Stage (MIS) 5e experienced slightly higher insolation and lower global ice volume compared to the pre-industrial climate, however, how climate and vegetation differ regionally during MIS 5e is poorly known.
Here, we examined MIS 5e hydrologic and vegetation conditions in the Mississippi River Basin (MRB) in North America (NA) and compared this to the Holocene. during the Holocene and Last Interglacial as recorded by sediments of the northern Gulf of Mexico Jean‐Carlos Montero‐Serrano,1,2 Viviane Bout‐Roumazeilles,1 Anders E.
Carlson,3 Nicolas Tribovillard,1 Aloys Bory,1 Guillaume Meunier,4 Thomas Sionneau,5 Benjamin P. Flower,6 Philippe Martinez,7 Isabelle Billy,7 and Armelle Riboulleau1. Sediment core MD from Orca Basin located in the northern Gulf of Mexico (GOM) provides a high-resolution early Holocene record of climatic and hydrologic changes from ~ to 7 thousand calendar years before present (ka).
Paired analyses of Mg/Ca and δ18O on the planktonic foraminifer Globigerinoides ruber (white variety, μm) sampled at ~ 20 year resolution were used to. Volume 3 of Gulf of Mexico Origin, Waters, and Biota; a series edited by John W.
Tunnell Jr., Darryl L. Felder, and Sylvia A. Earle A continuation of the landmark scientific reference series from the Harte Research Institute for Gulf Of Mexico Studies, this volume provides the most up-to-date systematic, cohesive, and comprehensive description of the geology of the Gulf of Mexico basin.
Gulf of Mexico Basin Depositional Record of Cenozoic North American Drainage Basin Evolution. William E. Galloway. E-mail address: [email protected] Institute for Geophysics, The University of Texas at Austin, Austin, TX, USA.
Search for more papers by this author. Constraining variations in marine N 2 -fixation over glacial-interglacial timescales is crucial for determining the role of the marine nitrogen cycle in modifying ocean productivity and climate, yet paleo-records from N 2 -fixation regions are sparse.
Here we present new nitrogen isotope (δ 15 N) records of bulk sediment and foraminifera test-bound (FB) nitrogen extending back to the last ice. of mainland Mexico and the Baja California peninsula surround the Gulf, providing characteristic ´geology-climate-morphology´ sources for the sediments.
On the north, the Gulf receives the bulk of its sediments from the Colorado River basin and the desertic and semi-desertic areas of the Mojave-Sonora Desert.
The Gulf is open to. High sedimentation rates can potentially lead to overpressuring and sediment undercompaction within basins. Sediments with anomalously high porosity, in turn, induce low thermal conductivities and so tend to act as a thermal insulator to the flow of heat, In the Gulf of Mexico basin (Gulf basin), the generation of overpressure is caused mainly by the inability of pore pressure fluids to escape.
[et al.] -- Sediment transport measurements in the Sizewell-Dunwich Banks area, East Anglia, U.K. \/ Barbara J. Lees -- Sediment response to waves and currents, North Yorkshire Shelf, North Sea \/ C.F.
Jago -- Holocene sedimentations in the North-western North Sea \/ Roderick Owens -- Interglacial and Holocene sedimentation in the northern. The Lake Pontchartrain Basin is a 12,km 2 watershed in southeastern Louisiana, stretching from the State of Mississippi on the north and east to the Mississippi River on the west and south, and to Breton Sound at the Gulf of Mexico.
The Pontchartrain Basin is about km along strike and 75 km along dip, with modern lakes (Maurepas, Pontchartrain, and Borgne) covering the southern portion. Sediment cores collected from high-accumulation rate basins in the deep Gulf of Mexico, along with lake sediment cores from lakes in the tropics and sub-tropics, are used to develop highly-resolved records of past climate variability over the Holocene (the l years).
The study area (Fig. 1) is in the Northern Gulf of Mexico, km south of Louisiana, and covers the shelf margin and upper slope. Water depths are between 80 and meters. The shelf is around 80 km wide at this location. The Gulf basin originated during Jurassic by rifting accompanied by salt deposition (Salvador, ; Diegel et al., ).The Holocene sediments, in contrast, contain mainly marine OM, which is exceptionally well preserved.
During the deglaciation, terrigenous input was generally high due to large meltwater fluxes, whereby discrepancies between different proxies call for additional influences, such as the change in distance to the river mouth, local productivity.KEYWORDS: Holocene, Gulf of Mexico, millennial- to century-scale climate variability, solar forcing Citation: Poore, R.
Z., H. J. Dowsett, S. Verardo, and T. M. Quinn, Millennial- to century-scale variability in Gulf of Mexico lake sediments, and geomorphic features basin at the northwestern edge of the tropical Atlantic Ocean.