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The AAPG/Datapages Combined Publications Database
Showing 3,219 Results. Searched 200,621 documents.
ABSTRACT: Penecontemporaneous Dolomitization and Preservation of "Oncolitic" Stromatoporoids in Lower Middle Devonian of Ohio, by Roger J. Bain; #91022 (1989)
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1989
Three-Dimensional Measurement of Sand Grains: GEOLOGICAL NOTES
Jim L. Huitt
AAPG Bulletin
... it is necessary to characterize non-spherical sand grains dimensionally. In viewing most sand grains under magnification on a given plane, two dimensions...
1954
Archeopyle in Fossil Dinoflagellates: ABSTRACT
William R. Evitt
AAPG Bulletin
... in studying those dinoflagellates with spherical bodies, long processes, and obscure tabulation, called hystrichospheres. End_of_Article - Last_Page...
1965
Ordovician Algal Stromatolites in Upper Mississippi Valley: ABSTRACT
Richard A. Davis, Jr.
AAPG Bulletin
... including biogenic sand-size material and large pieces of shell material. Small spherical pellets are rare. Most samples contain some End_Page 609...
1966
Texture and Grain Surface Character of St. Peter Sandstone: ABSTRACT
Eugene J. Amaral, Wayne A. Pryor
AAPG Bulletin
... description of the St. Peter Sandstone as a very well-sorted sandstone with very well-rounded nearly spherical, and eolian frosted grains, is in error. End...
1971
Geologic Reservoir Analysis of Kirkwood Sandstone, Illinois: ABSTRACT
M. Holmes, A. J. Eloy, D. J. Ver Steeg
AAPG Bulletin
... network than those with skewed distributions. A theoretical 2-dimensional model of the pore network involving cubic packing of spherical grains...
1972
Radiolarian Ratios and Pleistocene-Holocene Boundary: ABSTRACT
Kenneth J. McMillen
AAPG Bulletin
... with the Pleistocene-Holocene boundary. The ratio of nassellarian (cone-shaped) radiolarians versus spumellarian (spherical) radiolarians decreases...
1979
Origin of Ooids in Pleistocene Miami Limestone, Florida Keys: ABSTRACT
Charles Franz, Kahle
AAPG Bulletin
... of calcified spherical bodies of algal or fungal origin. (3) Sheet (common): pavement-like layers of batons that are typically 0.5 to 2.0 µ long...
1981
Progressive Stages of Diagenesis in Early-Middle Eocene Fore-Arc Delta, Shelf, Slope, and Basin Sandstones, Southern Coast Range, Oregon: ABSTRACT
Marjorie A. Chan
AAPG Bulletin
... of calcite cementation preserved open framework-supported textures in spherical concretions. A second stage of mixed-layer clays formed cement rims...
1982
Pisoliths of Fairview Valley Formation, San Bernardino County, California: ABSTRACT
J. C. Nellis
AAPG Bulletin
... Fairview Valley Formation (Permian-Triassic?) crops out beneath the Sidewinder Volcanics in the Mojave block, southern California. Abundant spherical...
1982
Carbonate Sediment Produced by Rock-Boring Urchin, Echinometra lucunter, and Infauna, Black Rock, Little Bahama Bank: ABSTRACT
Charles M. Hoskin, John K. Reed
AAPG Bulletin
.... The samples were placed separately in 20L, 62.5 µm screen-walled buckets for 2 days (18 useable measurements). Urchins produced spherical...
1984
Morphologic Information on Cretaceous Nannofossils from Niobrara Formation: ABSTRACT
J. Mitchener Covington
AAPG Bulletin
.... Nine species were found with coccospheres intact, including a species of Biscutum with extraordinary cylindrical rather than spherical coccospheres...
1985
Abstract: Possible Acidophilic Bacteria Trapped In Permian Halite, by K. C. Benison and T. Phillips; #90928 (1999).
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1999
Linear Features on Global Topographic Image: DISCUSSION
I. B. Campbell
AAPG Bulletin
... of these disruptions? Why are they global and apparently spiral on a spherical projection? I pose these questions with the hope that readers may examine...
1993
Abstract: Petrogenesis and Petrography of Pisoliths and their Connection to Terra Rosa “Red Earth”, by Adair, Christopher; #90031 (2004)
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2004
Abstract: Opening History of the South Atlantic, by Ian Davison, C. Reeves, and Pedro Baptista; #90039 (2005)
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2005
Abstract: Tidal Rhythmites and their Implications in Surmising Earth-Moon Dynamics, by Christopher Coughenour; #90070 (2007)
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2007
Abstract: A Cold Phosphatic Woodford Shale, Michael Aufill
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N/A
ABSTRACT: Analysis of the Relations between Porosity and Permeability in Non-Consolidated Granular Media, by Da Silva, Melia R.; Santos, Carlos A.; #90142 (2012)
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2012
Abstract: Tectonic significance of the Avroman Formation: confirmation of Glennie et al.’s (1974) model from Kurdistan Region of Iraq, by Laura Davies, Ágoston Sasvári1, and Andrew Mann, #90188 (2014)
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2014
Multiple Approaches to Pore Structure Characterization of Self-Sourced Shales
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N/A
ABSTRACT: A Deep-Water Seafloor Implosive Source with Applications for Off-Shore Instrumented Oil Fields and Sub-Sea Exploration; #90007 (2002)
Allan W. Sauter, LeRoy M. Dorman
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.... In addition, the cylindrical rather than spherical shape of our implosion chamber should radiate energy non-isotropically, producing shear waves. Presently...
2002
ABSTRACT: Characterization of lateral petrophysical heterogeneity within Paleozoic dolomite reservoir facies using outcrop analogs; #90018 (2003)
Colette B. Hirstius
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... meters and can be modeled using a spherical model. The nugget effect is generally high and accounts for approximately 50% of the variance. A distinct...
2003
ABSTRACT: Self-Organized Breakup of Gondwana; #90061 (2006)
James W. Sears
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..., and fracture arrangement met conditions imposed by Euler’s rule for ordering convex polyhedrons on a spherical shell. The tensile stress field that initiated...
2006
ABSTRACT: Outcrop Characteristics for the Woodford Shale; #90133 (2011)
Richard D. Andrews
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... perfectly spherical and contain concentric internal banding. The nodule core is typically calcareous. Thin siltstone and dolomitic beds ~1 ft thick...
2011