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Showing 1 to 20 of 27 for “"Systems tract"”.
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Stratigraphy, Petrology, Diagenesis, Paleontology, and Depositional Environments of the Harrisburg Member of the Kaibab Formation in Northern Arizona and Southern Utah
… three representing a highstand to falling stage systems tract. The top of unit three was subaerially exposed during a lowstand systems tract creating sequence boundary one. Sequence two consists of units four through nine which represent a transgressive stems tract. The Permian-Triassic …
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Fluvial influence on high-frequency sedimentary cycle geometry: The transition from strandplain to deltaic deposition in the Cretaceous Point Lookout Sandstone, San Juan Basin, Colorado
… study area, therefore, represents late highstand systems tract progradation and subsequent shelf-margin systems tract deltaic deposition. Posamentier and Vail's (1988) model of deposition during base-level fail in the absence of fluvial incision predicts many of the stratigraphic relationships …
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Siesmic Stratigraphy of Upper Pleistocene gravel and holocene mudbelt deposits between wreck point and the kamma river on the western shelf of South Africa
… with the identified Type 1 Sequence divided into systems tracts. The Type 1 Sequence Boundary represents a major erosional unconformity formed as a result of tectonic uplift and a relative drop in sea level. A wave-cut knick point provides accommodation space for the deposition of Pleistocene and …
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Stratigraphy, Sedimentology, and Ichnology of the Middle Cambrian to Lower Ordovician Deposits in Subsurface Western Canada
… sequestration, and helium exploration and extraction projects. Despite this, the construction of a depositional model based on the integration of sedimentologic, ichnologic, and sequence stratigraphic datasets has not been attempted before. For this purpose, eighty-six well-cores recovered …
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The Sequence Stratigraphic Context of Mixed Basin Margin Evaporites in the Harrisburg Member of the Permian Kaibab Formation, Northern Arizona and Southern Utah
… study interprets four parasequences making up systems tracts of two depositional sequences. The lower two parasequences are indicative of the highstand systems tract of depositional sequence H1. Facies of the lower parasequences consist of the open-marine wackestone - packstone, restricted …
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Development of cyclic ramp-to-basin carbonate deposits, lower Mississippian, Wyoming and Montana
… into deep subtidal cycles. The transgressive systems tract (TST),which onlapped the ramp during long-term sea level rise, includes thick deep and shallow subtidal cycles; peritidal cycles are restricted to the inner ramp. The highstand systems tract (HST) developed during long-term sea level …
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Architectural Models for Lower Pennsylvanian Strata in Dickenson/Wise County, Southwest Virginia: A Reservior Case Study
… coals occur in both transgressive and highstand systems tracts. Coals within the transgressive systems tract are associated with 4th-order flooding surfaces, while coals within the highstand systems tract occur within high-frequency deltaic autocycles. Therefore, coals formation in the central …
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UTILIZATION OF CHEMOSTRATIGRAPHIC PROXIES FOR GENERATING AND REFINING SEQUENCE STRATIGRAPHIC FRAMEWORKS IN MUDROCKS AND SHALES
… the following general criteria. The Lowstand Systems Tract (LST) is defined by increasing concentrations of Ti, Zr, Al, and K as well as high levels of Mo and V. The Transgressive Systems Tract (TST) is defined by upward declining concentrations of Ti and Zr, though Al and K may remain …
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Relative sea-level rise and the development of channel-fill and shallow-water sequences on Cape Cod, Massachusetts
… sequences are comprised of a transgressive systems tract composed of a consistent sequence of coastal embayment and shoreline facies that have succeeded one another in response to Holocene relative sea-level rise. As relative sea-level flooded these paleo-channels, marsh environments were …
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Relative sea-level rise and the development of channel-fill and shallow-water sequences on Cape Cod, Massachusetts
… sequences are comprised of a transgressive systems tract composed of a consistent sequence of coastal embayment and shoreline facies that have succeeded one another in response to Holocene relative sea-level rise. As relative sea-level flooded these paleo-channels, marsh environments were …
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Sequence Stratigraphy, Depositional Environments, and Regional Mapping of the Late Devonian Interval, Upper Three Forks Formation, Sanish Member, and Lower Bakken Shale, U.S. Portion of the Williston Basin
… identified were then grouped into separate systems tracts based on the identification of several significant sequence stratigraphic surfaces.;The four facies identified in the Sanish include: Facies A, a dolomitic and Skolithos burrowed sandstone with a hard-ground at the base as originally …
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Sequence Stratigraphy and Petrophysics of the late Ordovician Utica-Point Pleasant Interval in the Middle Appalachian Basin, Eastern Ohio and Western Pennsylvania
… through Utica Shale comprise the transgressive systems tract (TST) of a large second-order sequence, composed of three, smaller scale third-order composite sequences. Third order sequences are regionally correlative, aggradational, and lack low-stand deposits. Sequences are separated by type 3 …
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Lithological and sequence stratigraphic examination of the Madison Group marker beds, eastern Williston Basin margin, North Dakota
… represent individual fourth-order regressive systems tracts. Markers dominated by the dolomudstone lithotype (State A, State A2, S.A.M.) reflect deposition during a highstand systems tract where the basal contact represents a fourth-order maximum flooding surface. Dolomitic sandstone markers …
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Regional stratigraphic framework of the Tuscarora Sandstone: A model for geologic CO2 storage in West Virginia
… middle members are grouped into a transgressive systems tract (TST), with a maximum flooding surface (MFS) occurring within the middle member. Above this MFS is the regressive systems tract (RST) which includes the lower portion of the upper member. Within the upper member, a transgression occurs …
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Stratigraphy and Depositional Environment of the Middle Atoka Formation, Central Arkoma Basin, Western Arkansas
… formation is mainly composed of transgressive systems tracts and part of a highstands systems tract. The intervals indicate successive sea-level cycles associated transgression and regression from shallow marine to shoreface.</p> <p>The middle Atoka formation has been proved as a significant …
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High-resolution sequence stratigraphy and diagenesis of mixed carbonate/siliciclastic successions.
… isotope work), was performed on 143 samples extracted from concretions and cemented beds at key horizons within these two successions. The early diagenetic results from within the majority of these cemented bodies generally supports the proposed facies-based sequence stratigraphic …
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Micropalaeontology, Palaeoenvironments and Sequence Stratigraphy of the Sulaiy Formation of Eastern Saudi Arabia
… superimposed on a large scale 3rd order system tract shallowing−upwards, highstand-associated sequence of the Sulaiy Formation. The Lower Ratawi Reservoir is located within the latest high-stand portion of a third-order Sulaiy Formation sequence. The reservoir consists of a succession of several …
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SEDIMENTOLOGY, ICHNOLOGY, AND SEQUENCE STRATIGRAPHY OF THE MIOCENE OFICINA FORMATION, ORINOCO OIL BELT, EASTERN VENEZUELA BASIN
… package and representing the transgressive systems tract. The Middle Member is characterized by widespread evidence of tidal influence (e,g, inclined heterolithic stratification) and by the presence of the impoverished Cruziana Ichnofacies and the Skolithos Ichnofacies, both reflecting …
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High resolution sedimentologic and stratigraphic investigation of a storm-dominated carbonate ramp, Hoogland Platform (ca. 549 Ma), Nama Group, Namibia
… or larger scale "entities" (e.g. parasequences, systems tracts, depositional sequences). This damping of topographic elements on the seafloor was found to act at a variety of temporal and spatial scales from the sub-annual and sub-meter laminae and facies scale, through the Milankovitch band and …
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Stratigraphic Analysis of the Capps Limestone in the North Norton Oil Field in Runnels County, Texas
… represent an influx of sand from fluvial-deltaic systems that were possibly active nearby. Shale units may represent deeper areas on the shallow-shelf, a lagoonal environment, an interdistributary bay, or the occurrence of prodelta muds. The deposition of the Capps Limestone occurred as a part of …
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