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The AAPG/Datapages Combined Publications Database
Showing 3,219 Results. Searched 200,621 documents.
Regional Significance and Interpretation of a Coral-Stromatoporoid Carbonate Buildup Succession, Jefferson Formation (Upper Devonian), East-Central Idaho
P. E. Isaacson, S. L. Dorobek
Dallas Geological Society
... (5-10 cm diameter), spherical to hemispherical stromatoporoids (Biofacies A; Fig. 4) which were initiated above the basal hardground horizon. The basal...
1988
High-resolution seismic detection of shallow natural gas beneath Hutchinson, Kansas
Susan E. Nissen, W. Lynn Watney, Jianghai Xia
Environmental Geosciences (DEG)
... to vent the gas indicate that the gas-bearing interval corresponds to thin dolomite layers, which have higher P-wave velocities than the surrounding...
2004
Biostratigraphy and Carbonate Petrology of a Devonian Biostrome, Southeastern California
David H. Suek, S. Robert Bereskin
Rocky Mountain Association of Geologists
... probable wave abrasion, intense bottom scour or subaerial erosion. In more than one location, finely laminated micrite was directly deposited over...
1982
Regional Significance and Interpretation of a Coral-Stromatoporoid Carbonate Buildup Succession, Jefferson Formation (Upper Devonian), East-Central Idaho
P. E. Isaacson, S. L. Dorobek
CSPG Special Publications
... (5-10 cm diameter), spherical to hemispherical stromatoporoids (Biofacies A; Fig. 4) which were initiated above the basal hardground horizon. The basal...
1988
High-resolution Measurements of Elasticity at Core Scale. Improving Mechanical Earth Model Calibration at the Vaca Muerta Formation.
Anton Padin, Gilles Pijaudier-Cabot, Alain Lejay, Hamid Pourpak, Jean-Philippe Mathieu, Atef Onaisi, Gregory Boitnott, Laurent Louis
Unconventional Resources Technology Conference (URTEC)
... of ultrasonic surface wave velocities (P and S) at the milimetric scale, then calibrated the results with discrete triaxial tests performed on plugs...
2019
Petrography of a Carbonate Transgressive-Regressive Sequence: The Bird Spring Group (Pennsylvanian), Arrow Canyon Range, Clark County, Nevada
Christopher P. Heath, David N. Lumsden, Albert V. Carozzi
Journal of Sedimentary Research (SEPM)
... in microfacies 1, 1a, and 2, 2a. They appear as spherical to ovoidal bodies formed of dark gray to black microto cryptocrystalline calcite devoid of internal...
1967
SPINICAUDATANS FROM THE UPPER JURASSIC OF ARGENTINA AND THEIR PALEOENVIRONMENTS
MATEO D. MONFERRAN, NORA G. CABALERI, OSCAR F. GALLEGO, CLAUDIA ARMELLA, MARIANA CAGNONI
PALAIOS
... or microcrystalline silica. We also found spherical structures (15À25 lm in diameter) consisting of iron minerals and organic matter scattered throughout the matrix...
2016
Distinguishing Depositional Environments in Shallow-Water Mixed, Bio-Siliciclastic Deposits on the Basis of the Degree of Heterolithic Segregation (Gelasian, Southern Italy)
Domenico Chiarella, Sergio G. Longhitano
Journal of Sedimentary Research (SEPM)
..., Fielding, C.R., and Jones, B.G., 2008, Ichnological and sedimentological signatures of mixed wave- and storm-dominated deltaic deposits: examples...
2012
Chapter 11: Gravity and Heat Flow Analysis of the Oceanic Subduction Zone in the Eastern Caribbean
Antonio Ughi
AAPG Special Volumes
...., 1956). New models combining seismic refraction and gravity data were proposed later by Talwani et al. (1959). They used a P-wave velocity and density...
2021
Facies Analysis of the Redwater Reef Complex, Alberta, Canada
John Edward-Klovan
CSPG Bulletin
... framework above the sea bottom and potentially capable of growth into turbulent surface waters, to which they would be wave resistant" (Lowenstam, 1950...
1964
Active Ooid Growth Driven By Sediment Transport in a High-Energy Shoal, Little Ambergris Cay, Turks and Caicos Islands
Elizabeth J. Trower, Marjorie D. Cantine, Maya L. Gomes, John P. Grotzinger, Andrew H. Knoll, Michael P. Lamb, Usha Lingappa, Shane S. O'Reilly, Theodore M. Present, Nathan Stein, Justin V. Strauss, Woodward W. Fischer
Journal of Sedimentary Research (SEPM)
... and Dravis (2008) concluded that tidal currents had little influence on sediment transport on the Ambergris shoal relative to wave-generated currents...
2018
Pennsylvanian Glacioeustasy Recorded in a Carbonate Ramp Succession, Ancestral Rocky Mountains, New Mexico
Thomas L. Wiberg, Gary A. Smith
CSPG Special Publications
... in diameter between 1 and 5 cm, are irregular in outline and exhibit elongate or spherical forms. Mottle boundaries cross-cut allochems, indicating...
1994
Influence of Host-Rock Texture on the Morphology of Carbonate Concretions in a Meteoric Diagenetic Environment
William Cavazza, Roberto Braga, Eduard G. Reinhardt, Claudia Zanotti
Journal of Sedimentary Research (SEPM)
... in the surf zone, where shoaling, wave-driven currents typically generate migratory large three-dimensional ripples or dunes. At the base of this facies...
2009
Modeling Methane-hydrate Formation in Marine Sediments
Lili Zheng, Hui Zhang, Mingyu Zhang, Prasad Kerkar, Devinder Mahajan
AAPG Special Volumes
..., A. Sakai, and T. Collett, 1999, Elastic wave velocity in marine sediments with gas hydrates: Effective medium cooling: Geophysical Research Letters...
2009
Genesis and Depositional History of Spraberry Formation, Midland Basin, Texas
George T. Schmitt
AAPG Bulletin
..., pyritiferous, phospatic, siliceous shale. Large, light gray, spherical mass in left center, secondary silica (chalcedony). Large, black mass in right...
1954
Concave Sand Grains in Eolian Environments: Evidence, Mechanism, and Modeling
B. T. Werner , E. Merino
Journal of Sedimentary Research (SEPM)
... the natural tendency for grains to become spherical in an energetic, collisional environment is circumvented. Based on the observations above, we believe...
1997
Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues
Ahmad Ramdani, Pankaj Khanna, Gaurav Siddharth Gairola, Sherif Hanafy, and Volker Vahrenkamp
AAPG Bulletin
... topography part of the mesa. (E) Vertical P-wave geophone before installation. (F) The seismic source: a 500-kg accelerated weight drop (pointed...
2022
Facies Associations of Freshwater Carbonates in the Eocene-Oligocene Chadron Formation, White River Group, Nebraska and South Dakota, USA
James E. Evans
Utah Geological Association
... (wave-reworked) limestone, and charophyte-rich, massive limestone. These field designations are based upon combinations of seven carbonate...
1998
Anatomy of Stratigraphic Trap, Bisti Field, New Mexico
Floyd F. Sabins, Jr.
AAPG Bulletin
... disconformity, after which the sandy mud of the Low SP interval was deposited. Wave action winnowed the mud from this sediment and concentrated...
1963
Magnetic Anomalies and Crustal Structure in Eastern Gulf of Mexico
D. I. Gough
AAPG Bulletin
...., S. Hendricks, W. E. Daniels, and D. C. Jensen, 1964, Computation of the main geomagnetic field from spherical harmonic expansions: N.A.S.A. Pub. TMX...
1967
Holocene Shallow-Water Carbonate and Evaporite Sediments of Khor al Bazam, Abu Dhabi, Southwest Persian Gulf
Christopher G. St. C. Kendall , Sir Patrick A. D'e. Skipwith
AAPG Bulletin
... facies, (5) molluscan sand facies, (6) algal mat facies, and (7) evaporite facies. Nonskeletal calcium carbonate sediment types are related to wave...
1969
Modeling of Sandstone Ngrayong Formation Using Digital Image Analysis
Annisa Rachmi Trahwiwit Widijana, Fourier Dzar Eljabbar, Almira Anissofira, Fatkhan, Handoyo
Indonesian Petroleum Association
... to see the effect of various conditions of the samples. The models are constructed based on their grain shape: spherical, ellipsoidal, and polygon...
2015
Calculation of Stratigraphic Thickness in Parallel Folds: GEOLOGICAL NOTES
John B. Mertie, Jr.
AAPG Bulletin
... spherical, normals to these surfaces at the two station points would intersect in a point. For non-spherical parallel surfaces, however, normals drawn...
1944
Principles of carbonate production
Wolfgang Schlager
Special Publications of SEPM
... substances and sunlight, and origin, they can form wave-resistant structures and they are c.2 controlled precipitates by heterotrophic organisms easily...
2005
Origin of Caballos and Arkansas Novaculite Formations
David E. Park, Jr. , Carey Croneis
AAPG Bulletin
... from organically precipitated silica particles in the 1-10 µ size range. These particles accumulated below wave base where little detrital material...
1969