Download or read book Genetic stratigraphic sequences and depositional systems of the lower and middle Wilcox strata Texas Gulf Coast Basin written by Liangqing Xue and published by . This book was released on 1994 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Stratigraphic Sequence Analysis of the Upper Wilcox Gulf Basin Texas written by Steven Kendrick Miller and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Upper Wilcox genetic sequence (UWGS) is a transgressively bounded unit that represents the last major progradational episode associated with Wilcox (Paleocene-Eocene) deposition in the Texas Gulf Coast basin. The UWGS includes at outcrop, the Sabinetown Formation, the Carrizo Formation and the lower Reklaw Formation, and in the subsurface it includes the upper part of the Middle Wilcox Subgroup, all of the Upper Wilcox Subgroup and the lower part of the Reklaw Formation. UWGS depositional systems in the Rio Grande embayment (South Texas) include two large but distinct delta complexes, the Rosita and Burgos deltas. The Rosita delta system contains the Duval, Massive, and Live Oak deltas which were fed by the Carrizo fluvial system. The Burgos delta system contains the Fandango and the Zapata deltas and was fed by an unnamed and unmapped fluvial system originating from northern Mexico. Depositional systems within the UWGS in the Houston embayment (East Texas) include two small delta systems, the Columbus and the Jasper, and an intervening strandplain system, the Harris. The Columbus delta was supplied by the Jewett fluvial system and the Jasper delta by an unnamed and unmapped fluvial system originating in Louisiana. UWGS deposition began following the transgression of the Lower Wilcox shelf margin and the deposition of a regional marine mudstone containing a maximum flooding surface (MFS). An influx of sediment from the west from the last pulse of the Laramide Orogeny (55ma) began deltaic progradation in the Rio Grande embayment. At approximately the same time, delta systems in the Houston embayment first prograded and then were transgressed as the trunk fluvial system shifted to the southwest. The resulting transgressive deposits include the Yoakum shale, which defines the top of the Sabinetown Formation. A fall in sea level at the end of the Yoakum/Sabinetown transgression extended the delta systems in the Rio Grande embayment to the shelf edge; the smaller delta systems in the Houston embayment shifted basinward. A slow relative rise followed as the systems in both embayments continued to prograde/aggrade and then were progressively transgressed. A transgressive shelf with isolated sands ('Atkinson' sands) developed over the drowned basin margin. The Bigford barrier/lagoon complex marked the maximum landward migration of the shoreline
Download or read book Regional Depositional Systems Tracts Paleogeography and Sequence Stratigraphy Upper Pennsylvanian and Lower Permian Strata North and West central Texas written by Leonard Franklin Brown and published by . This book was released on 1990 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Gulf of Mexico Sedimentary Basin written by John W. Snedden and published by Cambridge University Press. This book was released on 2019-11-21 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive and richly illustrated overview of the Gulf of Mexico Basin, including its reservoirs, source rocks, tectonics and evolution.
Download or read book The Sedimentary Basins of the United States and Canada written by Andrew Miall and published by Elsevier. This book was released on 2008-12-03 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years there have been rapid strides in our understanding of plate-tectonic processes, many developments in methods of basin analysis, and the accumulation of much new surface and subsurface geological and geophysical data. Projects such as COCORP (in the United States) and Lithoprobe (in Canada) have provided essential insights into the deep crustal structure of the continent. Synthesis of all the available information about North America’s geological regions has not been attempted systematically since the “Decade of North American Geology project undertaken by the Geological Society of America and the Geological Survey of Canada nearly twenty years ago. The book commences with a summary of the Phanerozoic geological history of the United States and Canada, illustrated with a suite of new paleogeographic maps, and tying in each of the subsequent regional chapters by the inclusion of numerous cross-references. This followed by a set of fifteen regional syntheses of the principal tectonic regions of the United States and Canada, focusing on the stratigraphic and tectonic history of the major sedimentary basins. Most of these chapters have been contributed by specialists, drawing on their own research, and providing interpretive summaries of a type not previously attempted. Up-to-date synthesis of the sedimentary/tectonic history of the major areas of the United States and Canada Up-to-date references Many new color maps
Download or read book The Depositional System for the Middle and Lower Wilcox in Houston Embayment Northern Gulf of Mexico Basin written by Lauren Kathleen Mercado and published by . This book was released on 2016 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Paleocene-Eocene Wilcox formation has been a very oil and gas productive formation in the Gulf of Mexico. Recoveries are on the order of 40 to 500 million barrels of oil, but the potential exists to produce 3 to 15 billion barrels of oil. However, a number of technical and intellectual difficulties arise in economically producing the Wilcox Formation. Deep water Wilcox discoveries are located in low-permeability turbidite sandstones deposited in lower slope channels and basin floor fans in the Gulf of Mexico. The turbidite channels and fans are deep basin equivalents to the shelf delta systems located >250 miles updip, now below onshore Texas. It is important to understand the Paleocene-Eocene shelf depositional system dynamics as these are sediment feeders to the deep water turbidites and will provide a better understanding of the delivery system into the basin. This thesis focuses on the Middle and Lower Wilcox Formation specifically looking in the area of the Brazos and Colorado paleo-delta systems below the present day Texas coastal plain. The study areas represent shelf, shoreline and deltaic coastal deposits. The data used were well logs, such as gamma ray, spontaneous potential and resistivity. Using well log patterns the deposits have been broken down into six stratigraphic sequences on vertical logs, mapped, and analyzed. Signatures of log patterns also have been used to identify depositional systems from fluvial to coastal plain to the shelf in order to understand cycle stacking. The migration of the depocenters indicated a slight progradation, followed by retrogradation, followed by progradation caused by changes in accommodation and sediment supply. The analysis of the shelf and coastal depocenters suggest a possible complex link to the deep basin sediment transfer rather than a simple fluvial-delta-shelf-edge delta to deep water pathway.
Download or read book Environments of Deposition Wilcox Group Texas Gulf Coast written by Houston Geological Society and published by . This book was released on 1968 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1994 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sequence Stratigraphy as an Exploration Tool written by Society of Economic Paleontologists and Mineralogists. Gulf Coast Section. Foundation. Research Conference and published by . This book was released on 1990 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Depositional History and Stratigraphic Evolution of the Upper Wilcox Group and Reklaw Formation Northern Bee County Tx RI284 written by William A. Ambrose and published by . This book was released on 2018-06 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report of Investigations No. 284, "Depositional history and stratigraphic evolution of the Upper Wilcox Group and Reklaw Formation, northern Bee County, Texas" is a detailed study of the upper Wilcox and Reklaw stratigraphic succession in a 190-mi2 (~490-km2) area along the upper Wilcox shelf margin in northern Bee County, Texas. By interpreting and mapping 19 high-frequency, fourth-order regressive-transgressive sequences, it demonstrates that the upper Wilcox to Reklaw succession contains greater variability in depositional systems, facies, and reservoir sandstone-body geometry than previously documented.
Download or read book Sequence Stratigraphy Sandstone Architecture and Depositional Systems of the Lower Miocene Succession in the Carancahua Bay Area Texas Gulf Coast written by Rattanaporn Fong-Ngern and published by . This book was released on 2011 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study defines depositional environments and constructs the sequence stratigraphic framework of the lower Miocene Oakville Formation and the basal part of the middle Miocene Lagarto Formation in the Carancahua Bay area. The Early Miocene of the northwestern Gulf of Mexico represents a tectonically stable period with a high sediment influx. The analysis is based on a data set composed of 45 well logs and 200 mile2 area 3D seismic volume. The study interval was divided into five depositional sequences 1-5 that encompass 0.6-2.5 My. LST, TST, and HST systems tracts were recognized by stacking patterns and bounding surfaces. Sequence thickness increases from sequence 1 to 3 and displays reverse thickness trends from sequence 3 to 5, implying changes in accommodation space relative to sediment supply, beginning with high rates of accommodation and evolving into low accommodation rates relative. Besides type-1 depositional sequence which forms during relative sea-level fall below the shoreline break, regressive units of T-R sequence model were also defined and delineated. The interval contains four regressive units, R-Unit1-4. The R-Unit net sandstone maps exhibit the same characteristic of a dip-oriented source of delta-plain origin and a delta-front depocenter basinward. Integration of well log patterns, sandstone dispersal trends from net sandstone maps and seismic stratal slices led to interpretation of depositional environments in each sequence. LST deposits are represented mainly by incised-valley fill facies. TSTs are composed predominantly of retrogradational barrier/tidal-inlet facies, whereas other TSTs contain lagoonal and reworked deltaic systems. HST1 is composed mainly of fluvial-dominated deltaic systems, whereas deltaic systems in other HSTs exhibit wave-influenced deltaic and strandplain depositional systems. The integrated methodology reveals depositional facies variations in contrast to previous work that interpreted these deposits as shorezone systems. During LSTs coarse-grained sediments bypassed shelf through incised valley systems to a downdip depocenter. More sandy sediments were stored on shelf as deltaic and strandplain deposits during HSTs. In contrast to the others, destructive process occurred in TSTs and reworked sandy sediments, for example from delta fronts to barrier bar and lagoonal facies. Submarine fans form by sediments transported through incised-valley systems and delta fronts are commonly good reservoirs. Hence, presence of such depositional facies in the study area might be genetically linked to exploration targets.
Download or read book Regional Depositional Systems Tracts Paleography and Sequence Stratigraphy Upper Pennsylvanian and Lower Permian Strata North and West central Texas written by University of Texas at Austin. Bureau of Economic Geology and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the South Texas Geological Society written by and published by . This book was released on 1987 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Geology of Stratigraphic Sequences written by Andrew D. Miall and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sequence stratigraphy represents a new paradigm in geology. The principal hypothesis is that stratigraphie successions may be subdivided into discrete sequences bounded by widespread unconformities. There are two parts to this hypothesis. First, it suggests that the driving forces which generate sequences and their bounding unconformities also generate predietable three-dimensional stratigraphies. In re cent years stratigraphie research guided by sequence models has brought about fundamental im provements in our understanding of stratigraphie processes and the controls of basin architecture. Sequence models have provided a powerful framework for mapping and numerieal modeling, enabling the science of stratigraphy to advance with rapid strides. This research has demonstrated the importance of a wide range of processes for the generation of cyclie sequences, including eustasy, tectonics, and orbital forcing of climate change. The main objective of this book is to document the sequence record and to discuss our current state of knowledge about sequence-generating processes.
Download or read book Eocene Sequence Stratigraphy of the North Sea Basin written by Benjamin John Sloan and published by . This book was released on 1995 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eocene elastic sediments of the central and northern North Sea comprise five stratigraphic sequences. Oldest is the sand-dominated, basin-centered Frigg sequence, which includes submarine fan and apron deposits on the Beryl Terrace and in the Central and Viking Grabens. Middle Eocene Lower and Upper Hordaland sequences are mixed mud and sand units which prograded from the East Shetland Platform and Moray Firth and include discrete slope aprons and basin-center fans. The thin, regressive sand-prone Belton sequence marks the top of the Eocene in most of the basin, except on the eastern margin of the Shetland Platform, where the foreshelf pro grading prism of Thet sequence sandstones and siltstones was deposited. Foraminiferal biofacies analysis of a well on the Beryl Terrace indicates that four or the five sequence boundaries coincide with significant changes in the benthic and planktic foraminiferal assemblages. Cluster analysis confirms the distinct biofacies characterizing each sequence, an impoverished coarsely agglutinated fauna with radiolaria in the Frigg sequence, normal abundances or coarsely agglutinated forms in the Hordaland units, and "Velasco"-type deep-water calcareous benthics in the Upper Eocene, including planktic foraminifera in the Belton. Paleoenvironmental analysis or these biofacies shows an overall Eocene shallowing from lower slope to outer shelf. Subsidence analysis using the derived water depths indicates that the Eocene was part or a major phase of subsidence which began in the Late Paleocene and abated by Oligocene time. Overall, the Eocene constitutes a tectonosequence, or stratigraphic sequence attributable to tectonic influences. Eocene circum-North Sea tectonics include Atlantic domain seafloor-spreading to the north and west and the encroaching Alpine compression from the south. The base Eocene, top Frigg, and top Eocene all correlate with changes in seafloor spreading thought to have contributed, through intraplate stresses, to the stress regime and differential topography of the source area and basin. Latest Eocene eustatic lowering, climatic cooling, and Arctic water circulation are thought to have influenced the Thet sequence.
Download or read book Abstracts 30th International Geological Congress Stratigraphy written by and published by . This book was released on 1996 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
