Download or read book High frequency Sequence Stratigraphy of the La Pascua Formation Effect of Relative Sea Level on the Size Geometry and Spacing of Depositional Systems written by John I. Reistroffer and published by . This book was released on 2001 with total page 590 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 2002 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AAPG Annual Convention written by and published by . This book was released on 2000 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issue for 2000 includes also the abstracts of papers presented, in a separately-paged section.
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2001 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eustasy High Frequency Sea Level Cycles and Habitat Heterogeneity written by Mu Ramkumar and published by Elsevier. This book was released on 2017-02-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eustatic High-Frequency Sea Level Cycles and Habitat Heterogeneity: Basinal-Regional-Global Implications presents the current understanding and future directions of the research on Cretaceous sea level cycles in a single source. This reference work is for beginners, graduates, and postgraduates who are interested in the subject and intend to venture into serious research. This hybrid text/reference is for beginners, academics, and professionals who intend to document sea level dynamics on long and short time scales and resultant habitat and paleobiodiversity changes.
Download or read book Sea level Changes written by Cheryl K. Wilgus and published by . This book was released on 1988 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sequence Stratigraphy Depositional Environment and Reseroir Geology of Wave influence Deltaic Systems in the Lower and Middle Frio Formation Redfish Bay Corpus Christi Texas written by Jinyu Zhang and published by . This book was released on 2013 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sequence stratigraphy, depositional systems and reservoir geology of the lower and middle Oligocene Frio Formation in the Red Fish Bay field, Nueces County, Texas, are examined based on 1,800 feet (548.6 m) of core, 28 wireline-logs and 30 mi2 of 3-D seismic data. The study interval is composed of an incomplete 3rd-order stratigraphic sequence with an incomplete lowstand systems tract (LST), a complete transgressive systems tract (TST) and an incomplete highstand system tract (HST). This 3rd-order succession is divided into 12 4th-order sequences with average thickness of 150 feet (45.7 m). The lowstand system tract (LST) from 4th-order sequence 1 to 4th-order sequence 7 displays an aggradational stacking pattern in cross-sections. The regressive part of each 4th-order sequence has an upward-coarsening trend that reflects a transition of depositional environments from offshore to lower, middle and upper shoreface. The transgressive part of each 4th-order sequence exhibits an upward-fining trend, commonly associated with backstepping cycles composed of shoreface, washover-fan, and back-barrier lagoonal deposits. Sandstone maps of 4th-order sequence and stratal-slice maps from 3-D seismic data within 3rd-order lowstand system tracts display a strike-elongate geometry, indicating wave-dominated depositional systems. The 3rd-order transgressive system tract (TST) displays a retrogradational stacking pattern in cross-sections. The overall upward-fining trend records water deepening during transgression, interpreted as a transition from lower-shoreface to shelf environments. The 3rd-order highstand system tract (HST) from 4th-order sequence 8 to 4th-order sequence 12 displays a progradational stacking pattern in cross-sections. It is upward-coarsening and upward-thickening, indicating a transition from to distal- to proximal-shoreline setting. The geometry of framework sandstone bodies, inferred from gross-sandstone and stratal-slice maps is relatively lobate, suggesting a wave-modified deltaic system. The sandstone body continuity is very good and heterogeneity is very low within shoreface or wave-dominated deltaic systems in LST and HST sequences in Redfish Bay. Sandstone thickness expands towards the growth fault, owing to structurally controlled accommodation, but is thicker in the southwest part of study area, where it is controlled by paleogeomorphology, related to the presence of a deltaic depocenter. The sandstone body thickness of each 4th-order sequence is as much as 240 ft (73.2 m) and commonly ~100 ft (30.5 m) in average. Sandstone development in the study succession is controlled by the sequence stratigraphic context, and modification by depositional processes. The average porosity and permeability of study interval are 19.4% and 33.6 md respectively. Lithology is the main control on porosity and permeability. Sedimentary and biogenic structures also modify grain-size sorting, indirectly affecting porosity and permeability. Reservoir quality in LST is higher than that in the HST, as the depositional environment in LST is within proximal-delta-front facies, whereas in the HST is within distal-delta-front facies. Reservoir quality varies greatly within each 4th-order sequence, owing to different levels of intensity in bioturbation per each sandstone bed.
Download or read book Sequence Stratigraphic Framework of Upper Pliocene to Holocene Sediments of the Los Angeles Basin California written by Kenneth D. Ehman and published by . This book was released on 2012 with total page 47 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 Late Quaternary Stratigraphic Evolution of the Northern Gulf of Mexico Margin written by John B. Anderson and published by SEPM Soc for Sed Geology. This book was released on 2004 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Late Quaternary stratigraphic evolution of the north Gulf of Mexico margin : a synthesis -- High-resolution stratigraphy of a sandy, ramp-type margin, Apalachicola, Florida -- Late Quaternary stratigraphic evolution of the Alabama-west Florida outher continental shelf -- late Quaternary geology of the northeastern Gulf of Mexico shelf : sedimentology, depositional history, and ancient analogs of a major shelf sand sheet of teh modern transgressive systems tract -- Sequence stratigraphy of a continental margin subjected to low-energy and low-sediment-supply environmental boundary conditions : late Pleistocene-Holocene deposition offshore Alabama -- Late Quaternary deposition and paleobathymetry at the shelf-slope transition, ancestral Mobile River delta complex, northeastern Gulf of Mexico -- Depositional architecture of the Lagniappe Delta : sediment characteristics, timing of depositional events, and temporal relations with adjacent shelf-edge deltas -- Foraminiferal biostratigraphy and paleoenvironments of the Pleistocene Lagniappe Delta and related section, northeastern Gulf of Mexico -- Late Quaternary stratigraphic evolution of the west Lousiana-east Texas continental shelf -- Late Quaternary Brazos and Colorado deltas, offshore Texas, their evolution and the factors that controlled their deposition -- Late Quaternary evolution of the wave-storm-dominated Central Texas Shelf -- Late Quaternary evolution of the Rio Grande Delta.
Download or read book Sequence Stratigraphy of the Late Pleistocene Holocene Deposits on the Northwestern Margin of the South Caspian Basin written by Ogtay Rasim Rahmanov and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Interpretation of 900 km of a closely spaced grid of high-resolution seismic profiles over the northwestern margin of South Caspian Basin (SCB) allows recognition and study of six late Pleistocene - Holocene depositional sequences. Sequence stratigraphy analysis of sedimentary strata from 117,000 years B.P. to present led to the identification of a highstand systems tract, two transgressive systems tracts and six lowstand systems tracts. Each systems tract is characterized by specific seismic facies. Diverse depositional processes on the northwestern margin of the SCB are suggested by the thirteen seismic facies patterns recognized in the study area. Two distinct progradational complexes were interpreted within Sequence III and Sequences IV and V in the northeastern and northwestern parts of the study area, respectively. Stratigraphic interpretation of the sequences provided important information on parameters that control depositional architectures, such as lake level fluctuations, tectonic dynamics, and sediment supply. High sedimentation rates combined with a series of high-frequency and high-amplitude lake-level fluctuations, abrupt changes at the shelf edge, abnormally high formation pressure, and high tectonic activity during Quaternary time resulted in the development of a variety of complex geologic drilling hazards. I distinguished three types of hazards as a result of this study: mud volcanoes, sediment instability, and shallow gas. The 2D high-resolution seismic dataset from the northwestern margin of the SCB allowed more detailed seismic sequence stratigraphic analysis in the study area than has previously been attempted. In particular, it has a clear application in deciphering sediment supply and relative lake level changes as well as tectonic relationship of the northwestern shelf margin of the SCB. Results of this work led us towards better understanding of recent depositional history, improved our knowledge of the nature of the basin tectonics, climate history and styles of and controls on sedimentation processes within a sequence stratigraphic framework during the late Pleistocene-Holocene time.
Download or read book Halokinetic Sequence Stratigraphy and Structural Geometry of the Eocene Fluvial Carroza Formation Adjacent to La Popa Salt Weld La Popa Basin Mexico written by Joseph Richard Andrie and published by . This book was released on 2010 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Depositional History and High Resolution Sequence Stratigraphy of the Leonardian Bone Spring Formation Northern Delaware Basin Eddy and Lea Counties New Mexico written by Charles Braddock Crosby and published by . This book was released on 2015 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High frequency Palaeoenvironmental Changes in Mixed Carbonate siliciclastic Sedimentary Systems Late Oxfordian Switzerland France and Southern Germany written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal of this study is to monitor the highfrequency palaeoenvironmental changes occurring during a marine transgression in mixed carbonatesiliciclastic sedimentary systems. Based on a wellestablished bio- and sequence-stratigraphic framework, a narrow time window in the Bimammatum Zone of the Late Oxfordian is investigated. Seven shallow platform sections (Swiss Jura, Lorraine), two deep platform sections (Haute-Marne, Swabian Jura), and one basin section (SE France) have been logged and analysed in detail. Then, the deposits have been interpreted in terms of palaeoenvironments and sequence- and cyclostratigraphy with a high time resolution. Facies and microfacies analysis allows to propose depositional models for the Swiss Jura platform and the other studied areas. The highresolution sequence- and cyclostratigraphic analysis permits defining hierarchically stacked depositional sequences: medium-scale, small-scale, and elementary sequences, formed through orbitally controlled sealeve changes with periodicities of 400, 100, and 20 kyr, respectively. This study investigates deposits comprised in the first half of a medium-scale sequence, corresponding to two small-scale sequences, each composed of five elementary sequences. In the shallow platform sections, an elementary sequence generally consists of one to four beds including more or less developed marl intervals. In the deep platform sections, an elementary sequence generally consists of one or two limestone beds with a more or less developed marl interval. In the basin section, an elementary sequence is defined by one marl-limestone couplet. The good correlation of depositional sequences over long distances between the seven shallow platform sections and the similar number of elementary sequences in all sections are valuable arguments that allocyclic processes must have been involved in the formation of these depositional sequences. Additional factors such as the position on the platform and the pre-existi.
Download or read book Facies Analysis and Sequence Stratigraphy of the Middle Devonian Givetian Geneseo Formation of New York written by Ryan D. Wilson and published by . This book was released on 2012 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Timing and Depositional History of Eustatic Sequences written by Charles A. Ross and published by . This book was released on 1987 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High frequency Palaeoenvironmental Changes on a Shallow Carbonate Platform During a Marine Transgression Late Oxfordian Swiss Jura Mountains written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a well-established bio- and sequence-stratigraphic framework, a narrow time window in the Bimammatum ammonite zone (Late Oxfordian) is investigated in six Swiss Jura sections representing a shallow-water carbonate platform. From the detailed facies and microfacies analysis of oncoid-rich (Hauptmumienbank Member) and ooid-rich (Steinebach Member) limestones, a microfacies classification is established, depositional environments are interpreted, and a depositional model for the Swiss Jura platform is proposed. The sequence- and cyclostratigraphic interpretation has been performed for the transgressive part of the medium-scale sequence Ox6+, independently for each section, with a very high time resolution at the scale of elementary depositional sequences. The good correlation of the elementary and small-scale sequences between the six studied sections and the similar number of elementary sequences in all sections strongly suggest that allocyclic processes were involved in their formation. The hierarchically stacked depositional sequences (small-scale and elementary sequences) result from orbitally controlled sea-level changes with periodicities of 100 and 20 kyr, respectively. Thickness variations in the correlated small-scale and elementary sequences imply variable sedimentation rates, probably resulting from differential subsidence due to the activity of tectonic blocks. The tectonically controlled platform morphology contributed significantly to the general pattern of depositional environments and, combined with high-frequency sea-level fluctuations, created a complex facies distribution in time and space on the Swiss Jura carbonate platform.
