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The AAPG/Datapages Combined Publications Database
Showing 11,104 Results. Searched 200,626 documents.
Experimental Study of Rock Fragments
Sam Boggs, Jr.
Journal of Sedimentary Research (SEPM)
... indicated that calculations based on measurement of 100 grains gave reasonably reliable mean values. Because of the prevalence of elongated or tabular grains...
1968
Environmental Studies of Carboniferous Sediments. Part II: Application of Geochemical Criteria
E. T. Degens, E. G. Williams, M. L. Keith
AAPG Bulletin
...------------------------------ Fig. 1. (after E. G. Williams, 1957) End_Page 983------------------------------ bluish gray weathering calcilutites...
1958
Role of Hurricanes in the Holocene Stratigraphy of Estuaries: Examples from the Gulf Coast of Florida
Richard A. Davis, Jr., Stephen C. Knowles , Michael J. Bland
Journal of Sedimentary Research (SEPM)
... the bays and/or derived from the Gulf of Mexico; 4) clay minerals derived from weathering of Tertiary and Pleistocene carbonates and clays; and 5...
1989
Neoformed Physils in Ordovician Ooids
Charles E. Weaver
Journal of Sedimentary Research (SEPM)
... transformed to the IIb structure at a burial temperature between 150-200°C. ANTWEILER, R.C., AND DREVER, J.I., 1983, The weathering of a late Tertiary...
1992
A Comparison of Fourier and Fractal Techniques in the Analysis of Closed Forms
Stephen K. Kennedy, Wei-Hsiung Lin
Journal of Sedimentary Research (SEPM)
... by silica, anhydrite, and calcite (Mankiewicz and Steidtmann 1979). The modern sediment released to the streams after weathering retains much...
1992
Weibull vs. Lognormal Distributions for Fluvial Gravels
G.M. Kondolf , A. Adhikari
Journal of Sedimentary Research (SEPM)
... weathering follow the "Rosin Distribution" (e.g., Geer and Yancey 1938; Krumbein and Tisdel 1940), whereas sediments that have undergone extensive...
2000
Reconnaissance Geologic Mapping in Chagai Hills, Baluchistan, Pakistan, by Computer Processing of Landsat Data
Jon D. Dykstra , Richard W. Birnie
AAPG Bulletin
... of the intrusive outcrops ranges from high relief to nearly flat. Surface weathering usually produces a friable residual surface; however, some...
1979
Structural Evolution of Southern California: Northern Geosynclinal Basin and Coalinga District (Part of Compilation by Reed and Hollister for AAPG, Dec. 1936)
R. D. Reed, J. S. Hollister
AAPG Bulletin
...-weathering, siliceous shale south of Coalinga. The Lower and Middle Miocene series include the Temblor and Big Blue members. The Wagonwheel Mountain...
1936
Northern Geosynclinal Basin and Coalinga District: Chapter III
R. D. Reed, J. S. Hollister
AAPG Special Volumes
... white sandstone north of Coalinga, and brown, often white-weathering, siliceous shale south of Coalinga. The Lower and Middle Miocene series include...
1936
Quantitative characterization of shales within tidally influenced fluvial valley fill deposits of the Ferron Sandstone, eastern Utah: Implications for hydrocarbon exploration
Kivanc Biber, Shuhab D. Khan, Janok P. Bhattacharya, Mark D. Barton, and Craig L. Glennie
AAPG Bulletin
... component of calculations, where improper usage of 3-D distributions can result in errors of more than an order of magnitude (Geehan and Underwood, 1993...
2017
Weathering of Yucatan Limestones: The Genesis of Terra Rosas
W. C. Isphording
New Orleans Geological Society
...Weathering of Yucatan Limestones: The Genesis of Terra Rosas W. C. Isphording 1976 259 274 Aguilera N. (1959) Clays from some soils and calcareous...
1976
Pre-eocene Paleosol South of Tijuana, Baja California, Mexico
Patrick L. Abbott, John A. Minch, Gary L. Peterson
Journal of Sedimentary Research (SEPM)
...), In the Rancho Delicias area south of Tijuana, Baja California, well preserved remnants of an ancient weathering profile are developed on mid-Cretaceous...
1976
Faunas of Tidal Current and Wave-Dominated Continental Shelves and Their Use in the Recognition of Storm Deposits
John B. Wilson
CSPG Special Publications
... of the Ditrupa tubes support the coral Caryophyllia smithii. Width of photograph in midground is 75 cm. Water depth is 137 m. Zones of rippled sand and sand...
1986
Concave Sand Grains in Eolian Environments: Evidence, Mechanism, and Modeling
B. T. Werner , E. Merino
Journal of Sedimentary Research (SEPM)
... to check subjectivity. These criteria are: the concavity must be well rounded; its depth should be > 5-10% of the grain diameter (detectability...
1997
Preliminary Geochemical and Petrographic Analysis of Lower Eocene Fluvial Sandstones in the Rocky Mountain Region
James D. Vine, Elizabeth B. Tourtelot
Wyoming Geological Association
... as single beds. The samples collected weighed 5 to 10 pounds, and were removed from a small area of outcrop. Weathering rinds, lichens, plant roots...
1970
Chapter 4: Laminae, Laminasets, Beds, and Bedsets
O. R. Lazar, K. M. Bohacs, J. Schieber, J. H. S. Macquaker, T. M. Demko
AAPG Special Volumes
... to lamination. Fissility, however, is not identically equal to lamination—fissility is a by-product of weathering and unloading, and not a unique property...
2022
Carbonate Replacements After Sulfate Evaporites in the Middle Miocene of Egypt
Catherine Pierre, Jean Marie Rouchy
Journal of Sedimentary Research (SEPM)
... buttes where weathering has preferentially eroded the surrounding gypsum/anhydrite sediments (Fig. 2A, B). They also form thinner stratiform bodies...
1988
Origin of Uraniferous Phosphatic Beds in Wilkins Peak Member of Green River Formation, Wyoming
L. V. Mott , J. I. Drever
AAPG Bulletin
.... No special source, other than weathering of volcanic ash, is required for the phosphorus or the uranium. The uraniferous phosphatic beds do not appear...
1983
Structural Analysis and Mapping of the Western Part of the Caddo Anticline, Carter County, Oklahoma
Raphael Louis Ghazal
Oklahoma City Geological Society
... and Brunton. The sections were offset, as much as two miles in some cases, where strata were not well exposed. Trigonometric map calculations were later...
1976
Clay Mineralogy of Weathered Products and of River Sediments, Puerto Rico
Arthur J. Ehlmann
Journal of Sedimentary Research (SEPM)
.... This tentatively indicates halloysite may be an intermediate product in the weathering of the granodiorite. The depth of weathering was below the 10 foot level...
1968
Petrography and Diagenesis of Silcrete from the Kalahari Basin And Cape Coastal Zone, Southern Africa
M. A. Summerfield
Journal of Sedimentary Research (SEPM)
... silcrete) (Frankel, 1952; Frankel and Kent, 1938; Mountain, 1951, 1980; Summerfield, 1981). It is found both overlying and at depth within weathering...
1983
Dolomitization of Lower Cretaceous Peritidal Carbonates By Modified Seawater: Constraints From Clumped Isotopic Paleothermometry, Elemental Chemistry, and Strontium Isotopes
Claire M. Sena,, Cedric M. John, Anne-Lise Jourdan,,† Veerle Vandeginste, Christina Manning
Journal of Sedimentary Research (SEPM)
..., age-equivalent sedimentary rocks in the Oman Interior basins underwent substantial subsidence, and Precambrian deposits presently lie at a depth...
2014
The Occurrence of Polycrystallinity and Undulatory Extinction in Quartz in Sandstones
John R. Conolly
Journal of Sedimentary Research (SEPM)
.... Percentages of polycrystalline quartz present in sandstones can be used for determination of provenance only when corrections are made for differences...
1965
Building a three-dimensional near-surface geologic and petrophysical model based on borehole data: A case study from Chemery, Paris Basin, France
Paola Sala, Marcel Frehner, Nicola Tisato, O. Adrian Pfiffner
AAPG Bulletin
.... 571581, doi:10.1190/1.1441933.Cox, M. J. G., 1999, Static corrections for seismic reflection surveys: Society of Exploration Geophysicists Geophysical...
2013
Chapter 12: Increasing Interpreter Capability in Structurally Complex Settings through Combined Fieldwork, Interpretation, and Geocellular Modeling
John G. Solum, Stephen J. Jolley, Benjamin D. Meyer
AAPG Special Volumes
... proficient interpreters. This can have expensive consequences, including poor models of dynamic flow in reservoirs, erroneous calculations of reserves...
2016