Academic literature on the topic 'Norphlet Formation'

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Journal articles on the topic "Norphlet Formation"

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Bearden, Bennett L., and Robert M. Mink. "Seismic expression of structural style in Norphlet formation, offshore Alabama." GEOPHYSICS 54, no. 10 (October 1989): 1230–39. http://dx.doi.org/10.1190/1.1442582.

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During the past several years, the Jurassic Norphlet formation in offshore Alabama has been the focus of active exploration and development operations. Since the 1979 discovery of deep gas [greater than 6096 m (20 000 ft)] in Norphlet sandstones which contain estimated reserves of several trillion cubic feet, six Norphlet fields have been established in Alabama state waters and an additional six fields have been established in Federal Outer Continental Shelf (OCS) waters in offshore Alabama. We describe, using seismic data, the structural style associated with the Norphlet formation in offshore Alabama. More than 563 line‐kilometers (350 line‐miles) of multifold common‐depth‐point (CDP) seismic reflection data in Mobile Bay and offshore Alabama have been analyzed, interpreted, and mapped. The Lower Mobile Bay‐Mary Ann natural gas field provides an excellent seismic case study for the structural style in the deep Norphlet play. The field may be used as a geophysical exploration model for other Jurassic structures in offshore Alabama and the central and eastern Gulf of Mexico. Interpretation of the seismic data and maps indicates that Norphlet structures in offshore Alabama are predominantly east‐west trending, low‐relief, broad, elongate anticlines. The Lower Mobile Bay fault trend associated with the anticlines consists of pull‐apart, listric, normal faults characteristic of salt‐detachment structures. Many of these faults exhibit small‐scale growth. Salt thickness ostensibly increases from Mobile Bay to offshore Alabama and is exemplified by the development of a sequence of various structures typically associated with basinward increase of salt. Offshore Alabama structures may be classified as early horizontal phase or pillow‐stage features. Strata above the Haynesville seismic marker appear to be relatively flat, indicating early salt movement in the area. Small downbends associated with salt withdrawal exhibit thickening in the Haynesville‐Smack‐over section and are further complicated by normal faulting. The preponderance of the data suggests that the structures containing the large gas accumulations in the Norphlet formation in offshore Alabama are the result of salt tectonism.
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Weiss, Chester J., and Gregory A. Newman. "Electromagnetic induction in a fully 3‐D anisotropic earth." GEOPHYSICS 67, no. 4 (July 2002): 1104–14. http://dx.doi.org/10.1190/1.1500371.

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The bulk electrical anisotropy of sedimentary formations is a macroscopic phenomenon which can result from the presence of porosity variations, laminated shaly sands, and water saturation. Accounting for its effect on induction log responses is an ongoing research problem for the well‐logging community since these types of sedimentary structures have long been correlated with productive hydrocarbon reservoirs such as the Jurassic Norphlet Sandstone and Permian Rotliegendes Sandstone. Presented here is a staggered‐grid finite‐difference method for simulating electromagnetic (EM) induction in a fully 3‐D anisotropic medium. The electrical conductivity of the formation is represented as a full 3 × 3 tensor whose elements can vary arbitrarily with position throughout the formation. To demonstrate the validity of this approach, finite‐difference results are compared against analytic and quasi‐analytic solutions for tractable 1‐D and 3‐D model geometries. As a final example, we simulate 2C–40 induction tool responses in a crossbedded aeolian sandstone to illustrate the magnitude of the challenge faced by interpreters when electrical anisotropy is neglected.
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Hunt, Bryan, Delores M. Robinson, Amy L. Weislogel, and Ryan C. Ewing. "Sediment source regions and paleotransport of the Upper Jurassic Norphlet Formation, eastern Gulf of Mexico." AAPG Bulletin 101, no. 09 (September 2017): 1519–42. http://dx.doi.org/10.1306/10171615156.

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Mankiewicz, Paul J., Robert J. Pottorf, Michael G. Kozar, and Peter Vrolijk. "Gas geochemistry of the Mobile Bay Jurassic Norphlet Formation: Thermal controls and implications for reservoir connectivity." AAPG Bulletin 93, no. 10 (October 2009): 1319–46. http://dx.doi.org/10.1306/05220908171.

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Mudford, Brett, Paul Lundegard, and Ian Lerche. "Timing of hydrocarbon generation and accumulation in fault-bounded compartments in the Norphlet Formation, offshore Alabama." Marine and Petroleum Geology 12, no. 5 (January 1995): 549–58. http://dx.doi.org/10.1016/0264-8172(95)91508-m.

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Ajdukiewicz, J. M., P. H. Nicholson, and W. L. Esch. "Prediction of deep reservoir quality using early diagenetic process models in the Jurassic Norphlet Formation, Gulf of Mexico." AAPG Bulletin 94, no. 8 (August 2010): 1189–227. http://dx.doi.org/10.1306/04211009152.

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Thomas, Andrew R. "40Ar/39Ar Analyses of Authigenic Muscovite, Timing of Stylolitization, and Implications for Pressure Solution Mechanisms: Jurassic Norphlet Formation, Offshore Alabama." Clays and Clay Minerals 41, no. 3 (1993): 269–79. http://dx.doi.org/10.1346/ccmn.1993.0410301.

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Pilcher, Robin S., Ryan T. Murphy, and Jessica McDonough Ciosek. "Jurassic raft tectonics in the northeastern Gulf of Mexico." Interpretation 2, no. 4 (November 1, 2014): SM39—SM55. http://dx.doi.org/10.1190/int-2014-0058.1.

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The northeastern Gulf of Mexico is dominated by the 900–1800-m Florida Escarpment, which forms the bathymetric expression of the Cretaceous carbonate shelf edge. Outboard of the escarpment lies a region of salt-detached raft blocks, which are closely analogous to type examples in the Kwanza Basin, Angola, in terms of structural style, scale, and amount of extension. We undertook the first detailed structural interpretation of an emerging petroleum exploration province. The rafts detached and translated basinward by gravity gliding on the autochthonous Louann salt in the late Jurassic to early Cretaceous. The Upper Jurassic source rock (lime mudstones) of the Smackover Formation and eolian sandstone reservoir intervals of the Norphlet Formation are structurally segmented and entirely contained within the raft blocks. The rafts are separated by salt ridges and/or extensional fault gaps containing expanded uppermost Jurassic and lower Cretaceous strata of the Cotton Valley Group. The main episode of rafting occurred after deposition of the Smackover and Haynesville Formations and broke the Jurassic carbonate platform into raft blocks 2–40 km in length, which were then translated 25–40 km basinward from their original position. Map-view restoration of the raft blocks suggested a minimum extension of 100%, with basinward transport directions indicating a radial divergence of rafts. In the north of the study area, the transport direction was westerly, whereas in the south, translation was southerly. This pattern, which mimics the Florida Escarpment, suggested that the morphology of the Jurassic slope controlled the style of gravitational tectonics and the location of subsequent Cretaceous carbonate buildups. As with other linked systems on mobile substrates, the observed extension and translation must be balanced by downdip contraction. In the case of the northeastern Gulf of Mexico, the contraction is largely cryptic, being accommodated by salt evacuation, compression of salt walls/stocks, and possibly open-toed canopy advance.
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ELIAS, ANDRÉIA REGINA DIAS, LUIZ FERNANDO DE ROS, and ANA MARIA PIMENTEL MIZUSAKI. "Padrões Diagenéticos em Arenitos de Sistemas de Sabkha Costeiros-Eólicos: Um Estudo Comparativo dos Reservatórios Juruá da Área de Urucu, Bacia do Solimões, AM." Pesquisas em Geociências 31, no. 1 (June 30, 2004): 51. http://dx.doi.org/10.22456/1807-9806.19567.

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Coastal-eolian sabkha sandstones from different ages and basins show similar diagenetic patterns, which understanding is important for their evaluation as geochemical systems and as hydrocarbon reservoirs. The Carboniferous sandstones of the Juruá Formation (Solimões Basin) are one of the most important gas reservoirs of Brazil. The sandstones and interbedded mudrocks, evaporites and dolostones were deposited within a coastal sabkha environment with pervasive eolian reworking, under increasing marine influence, and hot and dry climate. Four stacked drying/wetting upward cycles were identified, with sabkha facies in the base overlain by eolian deposits, followed again by sabkha deposits, commonly eroded by the next cycle. Eolian dune and sandsheet sandstones are the best reservoirs. The diagenetic evolution and the relationships among diagenesis, depositional facies and stratigraphic unit boundaries show similarities with other coastal-eolian sabkha sandstones. The eodiagenesis is characterized by mechanical compaction, hematite and infiltrated clay coatings, framboidal pyrite, microcrystalline and blocky dolomite. Mesodiagenesis comprises chemical compaction, K-feldspar and quartz overgrowths, poikilotopic anhydrite, feldspar dissolution and albitization, illite and chlorite authigenesis, and late quartz, Fedolomite/ ankerite, calcite and siderite. Localized telogenetic effects include oxidation of ferroan constituents and kaolinite precipitation. Blocky dolomite and quartz cementation, and chemical compaction through intergranular and stylolitic pressure dissolution are more abundant in the non-eolian sandstones. Microcrystalline pore-filling and pore-lining dolomite, and patchy, poikilotopic, post-compactional anhydrite cementation, mostly close to the contacts with interbedded evaporites, are more abundant in the eolian sandstones. These diagenetic patterns are similar to those of the Rotliegend Group in northern Germany and in the North Sea, of the Norphlet and Tensleep Formations in USA, of the Muschelkalk Formation in Spain, and of the Monte Alegre Formation from the Amazonas Basin, northern Brazil. The similarities among the diagenetic histories of these coastal-eolian sabkha sandstones are ascribed to their similar patterns of stratigraphic organization (intercalated evaporite and carbonate beds) and of composition and circulation of pore fluids.
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L. Kugler, Robert M. Mink, Ralph. "Depositional and Diagenetic History and Petroleum Geology of the Jurassic Norphlet Formation of the Alabama Coastal Waters Area and Adjacent Federal Waters Area." Marine Georesources & Geotechnology 17, no. 2-3 (June 1999): 215–32. http://dx.doi.org/10.1080/106411999273909.

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Dissertations / Theses on the topic "Norphlet Formation"

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Cook, Preston Scott. "Sedimentology and Stratigraphy of the Middle Jurassic Preuss Sandstonein Northern Utah and Eastern Idaho." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6206.

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The purpose of this study is to analyze the sedimentology and stratigraphy of the Middle Jurassic Preuss Sandstone and re-evaluate past sedimentological interpretations. The Preuss is located in northern Utah, western Wyoming and eastern Idaho and is stratigraphically equivalent to the Entrada Sandstone, which is Callovian in age (Dossett et al., 2014). This study is the first attempt at 1) a sequence stratigraphic framework, 2) a petroleum system analysis and 3) an extraterrestrial analog study for the Preuss. This study frames the Preuss within three broad facies groups: marine, coastal and terrestrial. The marine group includes the open marine and restricted marine facies with associated subfacies, the coastal group includes coastal sabkha and associated subfacies, and the terrestrial group includes alluvial, inland sabkha and eolian facies with associated subfacies. Three sections in northern Utah and one section in eastern Idaho compromise the focus of this study. The three Utah sections were measured and described, and samples were collected from two Utah sections and the Idaho section. The Preuss Sandstone was deposited in an asymmetrical retroarc basin, consequently the Preuss thickens from the east towards west-central Utah and the Jurassic Elko highlands. The deposits are mostly terrestrial, which is in accord with recent sedimentological interpretations, but at odds with the old paradigm, which postulates that the Entrada and Preuss were largely tidal in origin. There are marine transgressions within the trough of the retroarc basin, and the transgressions affect terrestrial sedimentary patterns. During marine incurstions, alluvium shed off the highlands is confined west of the seaway, and does not prograde east of the trough until all the available accommodation is filled. The Preuss was deposited during a complete third-order sequence-stratigraphic cycle that lies within the Lower Zuni II second-order lowstand. The Preuss Sandstone can be used as an outcrop analog for ancient and modern environments both here on Earth and on other planetary bodies. The petroliferous Norphlet Formation along the U.S. Gulf Coast was deposited in an environment very similar to the Preuss, but the Waltherian succession of facies might be slightly different. Likewise, the facies present in the Preuss are analogous to modern arid environments, such as the Persian Gulf. Furthermore, the alluvial, sabkha, eolian and shallow marine facies of the Preuss are highly similar to facies observed in ancient Martian environments and modern environments on Saturn's moon, Titan.
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Jennings, George R. III. "Facies Analysis, Sequence Stratigraphy and Paleogeography of the Middle Jurassic (Callovian) Entrada Sandstone: Traps, Tectonics, and Analog." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/4083.

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The late Middle Jurassic (Callovian) Entrada Sandstone has been divided into two general facies associations consisting primarily of eolian sandstones in eastern Utah and "muddy" redbeds in central Utah. Sedimentary structures within the redbed portion are explained by the interfingering of inland sabkha, alluvial, and eolian depositional systems. A complete succession from the most basinward facies to the most terrestrial facies in the Entrada Sandstone consists of inland sabkha facies overlain by either alluvial or eolian facies. Where both alluvial and eolian facies interfinger, alluvial facies overlain by eolian facies is considered a normal succession. Sequence boundaries, often identified by more basinward facies overlying more landward facies, are observed in the Entrada Sandstone and are extrapolated for the first time across much of Utah, including both the eolian-dominated and redbed-dominated areas. Using these sequence boundaries as well as recent tephrochronologic studies, three time correlative surfaces have been identified in the Entrada. Based on the facies interpretations at each surface, five paleogeographic reconstructions and five isopach maps have been created, illustrating two major intervals of erg expansion and the location of the Jurassic retroarc foreland basin's potential forebulge. Eolian (erg-margin) sandstones pinch-out into muddy redbeds creating combination traps, as evidenced by dead oil (tar) and bleached eolian sandstone bodies within the Entrada. The Entrada Sandstone is a world-class analog for similar systems, such as the Gulf of Mexico's Norphlet Sandstone, where eolian facies grade into muddy redbed facies.
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Books on the topic "Norphlet Formation"

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Bearden, Bennett L. Seismic expression of structural style and hydrocarbon traps in the Norphlet Formation, offshore Alabama. Tuscaloosa, Ala: Geological Survey of Alabama for the State Oil and Gas Board, 1987.

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Book chapters on the topic "Norphlet Formation"

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Studlick, Joseph R. J., Roger D. Shew, George L. Basye, and Johnny R. Ray. "A Giant Carbon Dioxide Accumulation in the Norphlet Formation, Pisgah Anticline, Mississippi." In Casebooks in Earth Sciences, 181–203. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-8988-0_9.

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Thomson, Alan, and Richard J. Stancliffe. "Diagenetic Controls on Reservoir Quality, Eolian Norphlet Formation, South State Line Field, Mississippi." In Casebooks in Earth Sciences, 205–24. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-8988-0_10.

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Mancini, Ernest A., Robert M. Mink, Bennett L. Bearden, Steven D. Mann, and David E. Bolin. "Desert Environments and Petroleum Geology of the Norphlet Formation, Hatter’s Pond Field, Alabama." In Casebooks in Earth Sciences, 153–80. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-8988-0_8.

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Gomes, Sonnet, Amy Weislogel, and David Barbeau. "Detrital Zircon Evidence for Amazonian Provenance of Upper Jurassic Norphlet Formation in North Central Gulf, Mobile Bay: Implications for Paleoriver Systems in South and Central America." In Mesozoic of the Gulf Rim and Beyond: New Progress in Science and Exploration of the Gulf of Mexico Basin, 274–85. Gulf Coast Section SEPM, 2016. http://dx.doi.org/10.5724/gcs.15.35.0274.

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GINGER, ELLIOTT P., ANDREW R. THOMAS, W. DAVID GEORGE, and EMILY L. STOUDT. "RESERVOIR CHARACTERIZATION AND MODELING OF THE JURASSIC SMACKOVER AND NORPHLET FORMATIONS, HATTER’S POND UNIT, MOBILE COUNTY, ALABAMA." In Hydrocarbon Reservoir Characterization, 227–316. SEPM (Society for Sedimentary Geology), 1995. http://dx.doi.org/10.2110/scn.95.34.0227.

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Conference papers on the topic "Norphlet Formation"

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Fischer, Lorraine E. "Model for isopaching the Jurassic age Norphlet formation in the Mobile Bay, Alabama area." In SEG Technical Program Expanded Abstracts 1988. Society of Exploration Geophysicists, 1988. http://dx.doi.org/10.1190/1.1892415.

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Gutierrez, Maria A., and Ryan C. Ewing. "AEOLIAN ARCHITECTURAL ELEMENTS AND FACIES VARIABILITY IN A PROXIMAL SOURCE-TO SINK-TRANSECT, NORPHLET FORMATION, SOUTHWESTERN ALABAMA." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-283726.

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Gomes, Sonnet W., Amy L. Weislogel, David L. Barbeau, and Delores M. Robinson. "NEOPROTEROZOIC PROVENANCE OF THE EARLY JURASSIC NORPHLET FORMATION, MOBILE BAY, ALABAMA: MEXICAN AND SOUTH AMERICAN CONNECTION WITH EASTERN GULF OF MEXICO THROUGH CONTINENTAL SCALE PALEO DRAINAGE SYSTEM." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-285447.

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Reports on the topic "Norphlet Formation"

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Petrology and Provenance of the Norphlet Formation, Panhandle, Florida. Florida Geological Survey, 1991. http://dx.doi.org/10.35256/ic107p3.

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