Download or read book Reconstruction of Depositional Environments of the Lower Carpenter and Glassy Intervals of the Middle Atoka Formation Pennsylvanian in the Arkoma Basic Arkansas written by Melody Rae Hacker and published by . This book was released on 2002 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Shelf to Basin Transition and Tectonostratigraphy of the Atoka Formation lower Pennsylvanian in the Arkoma Basin Northwest Arkansas written by Travis Gibson White and published by . This book was released on 2019 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: The east-to-west oriented Arkoma Basin is a peripheral foreland basin or depositional trough that developed during the Carboniferous Period. This formation covers an aerial extent of approximately 33,800 square miles and spans from west-central Arkansas into southeastern Oklahoma (McGilvery, Manger, and Zachry, 2016; Perry, 1995). The Atoka Formation, deposited during the early Pennsylvanian, is the largest Paleozoic formation by aerial extent in the state of Arkansas and is located within and comprises the bulk of Arkoma Basin sediments (McFarland, 2004; Nance, 2018). This formation has been informally divided into three divisions, the lower, middle, and upper, based on their stratigraphic response to differing tectonic processes. A tectonostratigraphic interpretation was made for each division of the Atoka Formation using high resolution cross sections; correlated using well log, seismic, and surface data. Five condensed regional transects were constructed that aided in the development of a cross section "grid" meant to represent the deep marine to shallow marine depositional hinge lines. Each of the three Atoka divisions have a different dominant depositional force. The Lower Atoka deposition was dominated by eustasy, and with sediment supply from the start of Arkoma Basin tectonics, the middle division was dominated by tectonic subsidence and the upper was dominated by sediment supply. The transition between the Atoka divisions and the magnitude of migration between each deep marine hinge line indicates the progradation of the Upper Atoka depositional cycles occurred more rapidly than the retrogradation of the Middle Atoka. The maximum flooding of the formation occurred within the Middle Atoka's uppermost informal member, the Morris Member. The Lower Atoka was deposited on an extensive tectonically stable structural platform, which is supported by no lithostratigraphic transition to deep marine deposits within this project's study area. The deep marine deposition is characterized by shales encapsulating tumultuously distributed and isolated sandstone complexes. These sandstone complexes are not correlated to the shallow marine sandstones by anything but a condensed geologic timeline.
Download or read book Depositional Dynamics and Stratigraphic Correlation Basal Atoka Formation Spiro Foster Members Middle Pennsylvanian Arkoma Basin Eastern Oklahoma written by Zachary W. Mullen and published by . This book was released on 2009 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Depositional Environment and Petrology of the Lower Member of the Pennsylvanian Atoka Formation Ouachita Mountains Arkansas and Oklahoma written by Anthony Ross Grafton Sprague and published by . This book was released on 1985 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Master s Theses Directories written by and published by . This book was released on 2002 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Download or read book Diagenesis and Reservoir Characterization of the Pennsylvanian Middle Atoka Formation Sebastian and Logan Counties West Central Arkansas written by Elvis Chekwube Bello and published by . This book was released on 2012 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Middle Atoka Formation evolved from a stable passive margin during the early Pennsylvanian time to a rapidly subsiding basin, with the sedimentary fill thickening greatly southward during the middle Pennsylvanian time. The basin dips in north-south direction. An east-west anticlines and synclines were observed. The purpose of this study is to establish the stratigraphic units, reservoir geometry and distribution, and infer the depositional environments and reservoir quality. Well correlation and petrographic studies are used to achieve the goals. Sandstone Point Count method was used. The Point Counts was divided into five categories. They include the framework grains (quartz, feldspar, and lithic fragments), accessory minerals (muscovite and biotite), cementing materials (quartz overgrowths, feldspar overgrowths, dolomite, and calcite cements), pore-spaces (primary and secondary), and the "Other" (minerals that cannot be identified under the microscope, and matrix and pyrite). Vertical sequences of sand bodies that are closely spaced and separated by thick marine shale intervals, and sandstones that blocky signatures and abrupt bases and tops, were correlated as genetically related sand bodies. Four stratigraphic units; Borum, Turner, Nichol, and Basham Sandstone Units were identified. The sandstones of the Middle Atoka Formation are composed of very fine silt to coarse quartzarenites, subarkoses, sublitharenites, and litharenites. The reservoirs are heterogeneous and were divided into two: the amalgamated reservoirs (proximal and medial submarine fans), and the overbank reservoirs (levee-overbank deposits, crevasse splays, and distal lobes). The geometries of the reservoirs are elongate and radial depending on the stratigraphic units. Quartz overgrowths and clay cements are intense and advanced and variable within the two reservoirs. Porosity loss was significantly caused by compaction and quartz cementation. Secondary porosity, where it occurs, resulted from the dissolution of the labile grains, probably from the interaction with migrating organic acids or as a result of the increasing geothermal gradient. Diagenetic processes either enhance the porosity by dissolving mineral grains, or reducing the porosity by stimulating growth of clay and quartz minerals. Amalgamated reservoirs contain higher amount of dissolution, clay cements, and lower quartz overgrowths. Dissolutions are filled with clay cements. Dissolution when present in overbank reservoirs are better preserved than is in amalgamated portions. Dissolutions and clay cements are also higher in the south than is in the northern part. Higher clay content in the south ensures that the dissolution is almost effectively occluded by clay cements. Consequently there seem to be no net-gain in porosity despite in the area.
Download or read book Subsurface Stratigraphic Interpretation of the Lower Atoka Formation Northern Arkoma Basin Arkansas written by William Stephen Denham and published by . This book was released on 2018 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arkoma Basin is a Carboniferous peripheral foreland basin creating a structural depression covering an approximate area of 33,800 miles2 that extends through east-central Oklahoma and west-central Arkansas. The entire basin fill includes Pre-Mississippian carbonate shelf deposits, Mississippian marine carbonates and black shales, and Pennsylvanian mixed carbonated/clastic and shore zone/deltaic deposits. The Lower Atoka formation (Pennsylvanian) occurs in outcrop along the southern Boston Mountain Plateau in northern Arkansas and extends into the subsurface of the Arkoma Basin over an area of 2,300 miles2. The Lower Atoka ranges from 600 to 1500 feet in thickness and represents a cyclic succession of stacked shelf to shore zone/deltaic deposits recording a single 3rd order (1-10 m.y.) Vail/Exxon depositional sequence. It was deposited across a broad, tectonically stable platform along the southern margin of Laurasia just before its collision with the Gondwana and the formation of Pangea at the end of the Paleozoic. Tectonic influences meant that it was not a 100% stable platform during the Lower Atoka deposition. This affected the deposition of all the sequences in the Lower Atoka. Topographic relief on preceding deposition also helped create areas of accommodation space filled by offset, compensation bedding. Finally, subsidence on a passive margin has been argued to be up to almost 4 km. This helps explain the "long distance" shoreline shifts and cyclicity in the current time of deposition. This means that these 4th to 5th order cycles (10's to 100's k.y.) may reflect glacio eustacy and sediment supply and can be correlated across the entire area or a very large area. In addition, there appears to be a tectonic over print that influences onlap edges that define northern limits and areas of bypass and nondeposition.
Download or read book Facies Depositional Environments and Peterology of the Hartshorne Formation Eastern Arkoma Basin Arkansas written by David Joseph Steyaert and published by . This book was released on 1980 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Resolution Facies Analysis of Deltaic Subenvironments of the Pennsylvanian Atoka Formation Arkansas written by Tanwi Gangopadhyay and published by . This book was released on 1997 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stratigraphic and Structural Analysis of Middle Atoka Formation in Aetna Gas Field Franklin Johnson and Logan Counties Arkansas written by Ikramuddin Bahram and published by . This book was released on 2015 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arkoma basin is a prolific natural gas basin. The defining feature of this basin is the Atoka Formation that was deposited in the early-middle Pennsylvanian. The Atoka is held equivalent to the tectonic and structural evolution of the basin. This study focuses on one of the many gas fields in the Arkoma Basin in Arkansas to assess the stratigraphic and structural evolution that the strata in this particular field display. Aetna Gas Field extends from T. 8N. R. 27 W to T. 9 N, R. 27 W and T. 8 N, R. 26 W to 8N, R. 27. Geographically, Aetna field covers parts of Franklin, Johnson and Logan counties. It is one of the pioneer gas fields in the Arkoma Basin. First discovery of gas in Aetna Field was made in March 1928. The first three producing wells were completed in the upper Carpenter and middle Alma sands of the middle Atoka Formation. An analysis of structures and stratigraphy of the gas field through well log correlations reveal a combination trap for the gas. Using IHS Petra, stratigraphic correlations were performed on 49 wells in 10 cross sections. The wells selected were sorted by several criteria. Gamma ray logs were given priority. Stratigraphic tops were determined for correlation purposes. The stratigraphic tops were picked and correlated. The middle Atoka Formation was addressed exclusively for the purpose of this study. Structural analysis indicates an arch-and-trough setting that led to gas accumulation in this field. The stratigraphic analysis confirms a thickening to the south following the general southern thickening trend of Atoka Formation in the Arkoma Basin.
Download or read book The Stratigraphy and Depositional Environments of the Upper Bloyd and Lower Atoka Formations Pennsylvanian in Central Franklin Eastern Crawford and North Eastern Sebastian Counties Arkansas written by Uzoma N. Iheme and published by . This book was released on 1978 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Facies Depositional Environments and Petrology of the Hartshorne Formation Eastern Arkoma Basin Arkansas written by David Joseph Steyaert and published by . This book was released on 1980 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sedimentary Facies Structure and Palynology of the Lower and Middle Members of the Atoka Formation Central Arkansas written by Harold Edward Quinn and published by . This book was released on 1986 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regional Aspects of Pottsville and Allegheny Stratigraphy and Depositional Environments Ohio and Kentucky written by Charles L. Rice and published by . This book was released on 1992 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Depositional Nature and Hydrocarbon Potential of the Lower Pennsylvanian Atoka Formation Delaware Basin Southeast New Mexico written by Debra Twitty Parish and published by . This book was released on 2000 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elements of Pennsylvanian Stratigraphy Central Appalachian Basin written by Charles L. Rice and published by Geological Society of America. This book was released on 1994-01-01 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers based on geological mapping completed in the last 30 years and on associated stratigraphic and biostratigraphic studies deal with the contentious subject of correlation of Pennsylvanian units, and serve as an addendum to the work of Harold R. Wanless. Includes b&w photos and diagrams, and a g
Download or read book A Study of the Atoka Depositional System NW Shelf of the Arkoma Basin written by David M. Thomas and published by . This book was released on 1997 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
