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The AAPG/Datapages Combined Publications Database

Showing 23,042 Results. Searched 195,372 documents.

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ABSTRACT: Provenance and Paleogeography of the Late Jurassic Norphlet Formation; #90113 (2010)

Thomas Lovell

Search and Discovery.com

... of U-Pb ages and compositional data support rocks of the Appalachian Orogen as the dominant source of Norphlet Fm. In addition, 540- 580 Ma zircons...

2009

Chapter 8-part 2: Spectral Decomposition

Gregory A. Partyka, Michael D. Bush, Paul G. A. Garossino, Paul R. Gutowski

AAPG Special Volumes

... on substantially higher electromagnetic frequencies to map interference at the surface of the earth, spectral decomposition makes use of much lower seismic...

2011

Abstract: Sources and pathways of polycyclic aromatic hydrocarbons in St. Johns most famous body of water

V. O’Malley, J. Hellou, L. Winsor, T. Abrajano

Atlantic Geology

...% of the total PAR. For most of the Harbour sediments, combustion sources (car emission and woodburning) are the dominant contributors, possibly as a result...

1994

Out-of-phase cyclical sediment supply: A potential causal mechanism for generating stratigraphic asymmetry and explaining sequence stratigraphic spatial variability

R. Bruce Ainsworth, Adam J. Vonk, Paul Wellington, Victorien Paumard

Journal of Sedimentary Research (SEPM)

.... 2020), approximate delta and/or coastal-plain length from literature sources, and the dominant icehouse versus greenhouse climatic regime. Note...

2020

Modern Paleoecological Techniques: An Evaluation of the Role of Paleoecology in Gulf Coast Exploration

Hubert C. Skinner

GCAGS Transactions

... elements intermixed in the deeper open marine waters, the benthonic and pelagic faunas. The faunas in his well-oxygenated environments E through L...

1966

Abstract: VSP P-Wave Attenuation Model Study in Elastic Earth: Spectral Ratio method Vs Centroid Frequency Shift Method; #90187 (2014)

Waheduzzaman Talukder and Ralph Phillip Bording

Search and Discovery.com

... signal-to-noise ratio in data at higher frequencies. In this study two different methods, spectral ratio (SR) and centroid frequency down shift (CFD...

2014

Geophysical Techniques for Evaluating the Internal Structure of Cheniers, Southwestern Louisiana

Robbie R. Zenero , David L. Seng , Mark R. Byrnes , Randolph A. McBride

GCAGS Transactions

.... Anderson, L. C., M. R. Byrnes, and R. A. McBride, 1995, Paleoenvironmental and taphonomic evidence of diverse bioclast sources and its implications...

1995

Size Distribution Characteristics of Shallow Marine Sands from the Cape of Good Hope, South Africa

A. O. Fuller

Journal of Sedimentary Research (SEPM)

...Size Distribution Characteristics of Shallow Marine Sands from the Cape of Good Hope, South Africa A. O. Fuller 1961 Vol. 31 No. 2. (June...

1961

Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)

Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen

Search and Discovery.com

... of frequencies in updating model. Vigh and Starr (2006) used plane-wave method for 3D problems and Margrave et. al., (2010) used Phase Shift Plus Interpolation...

2014

Investigating Natural Fracture Effects on Well Productivity: Eagle Ford, La Salle County, Texas

Paolo Grossi

Unconventional Resources Technology Conference (URTEC)

... of wells; those that have several dominant (high intensity/amplitude) frequencies below 0.02 cycles/ft, specifically at 0.0125 cycles/ft and 0.006 cycles...

2015

Facies Mosaics Across the Persian Gulf and Around Antigua-Stochastic and Deterministic Products of Shallow-Water Sediment Accumulation

Bruce H. Wilkinson, Carl N. Drummond

Journal of Sedimentary Research (SEPM)

... Holocene surfaces are directly analogous to lithofacies thickness frequencies from ancient successions. In addition to the fact that both of the size...

2004

Repurposing Legacy Seismic Reflection Data in Support of Aquifer Characterization in Texas

Thomas E. Ewing, Cody H. Draper, Daniel M. Lupton

GCAGS Transactions

...) and the velocity of the rocks involved. Typical conventional 3D surveys have frequency ranges of 10–60 Hz, occasionally up to 120 Hz. Dominant frequencies...

2021

Carbonate Facies within Siliciclastic Submarine Fan Deposits, Lower Cenozoic Toledo Formation, Southern Belize: Petrography and Provenance

Jason D. Fisher, David T. King Jr.

GCAGS Journal

... that the skeletal grains represent an Early Cenozoic openmarine assemblage of crinoids and echinoids that is combined with a restricted marine assemblage...

2019

Abstract: Slime, Sand, and Shells: Lacustrine Hydrocarbon Play Elements Within a Continental-Environment Phase Stability Framework

Kevin M. Bohacs

Houston Geological Society Bulletin

... and clastic sediment supply rates. Hydrocarbon sources are influenced strongly by these controls on the ecosystem and reservoir- and seal-prone strata...

2004

Enhancing Spectral Decomposition to Delineates Subtle Channels … A Case Study from Offshore Nile Delta; #42180 (2018)

Islam A. Mohamed, Ahmed S. Abdel-Rahman, Amr E. Khalafalah, Abdul-Rahman Ali Mohamed

Search and Discovery.com

... shows that the dominant frequency of the fullstack seismic data is approximately 25 Hz. Consequently, the three frequencies used are: 10, 25, and 55...

2018

Mineralogy and Origin of Southern New England Shelf Sediments

Robert L. Mcmaster, Louis E. Garrison

Journal of Sedimentary Research (SEPM)

..., Amsterdam, 104 p. GARRISON, L. E., AND MCMASTER, R. L., 1966, Sediments and geomorphology of the continental shelf off southern New England. Marine...

1966

Heavy Mineral Correlation of the Fox Hills, Hell Creek, and Cannonball Sediments, Morton and Sioux Counties, North Dakota

Marie Louise Lindberg

Journal of Sedimentary Research (SEPM)

... and Sioux Counties, North Dakota, are studied. Nine mineral zones are established on the basis of heavy mineral frequencies. The first three correspond...

1944

Important Paleotectonic and Chronostratigraphic Considerations of the Late Paleocene in the Northernmost Andes as Constrained by Paleocene Rocks in the Cerrejón Coal Mine, Guajira, Colombia

G. Bayona, C. Jaramillo, M. Rueda, A. Pardo, A. Christie, G. Hernandez

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... Base: onset of acme of Proxapertites psilatus Assemblage: Good recovery of palynomorphs, with high frequencies of Proxapertites psilatus, Proxapertites...

2004

Size Distribution of Zircon and Tourmaline Grains in Some Samples of the Lissie Formation

John J. W. Rogers, Ross E. Dawson, Jr.

Journal of Sedimentary Research (SEPM)

... in percentage representation of heavy mineral frequencies: Nat. Acad. Sci. Proc., v. 17, p. 233-238. EPSTEIN, B., 1947, The mathematical description...

1958

Enso and Sunspot Cycles in Varved Eocene Oil Shales from Image Analysis

Maurizio Ripepe , Lillian T. Roberts , Alfred G. Fischer

Journal of Sedimentary Research (SEPM)

... sources for the investigation of prehistoric climatic patterns-of-change at frequencies extending from a year to centuries or, rarely...

1991

Evidence of precessional and eccentricity orbital cycles in a Tithonian source rock: The mid-outer carbonate ramp of the Vaca Muerta Formation, northern Neuquen Basin, Argentina

Diego A. Kietzmann, Javier Martin-Chivelet, Ricardo M. Palma, Jose Lopez-Gomez, Marina Lescano, Andrea Concheyro

AAPG Bulletin

... with frequencies within the Milankovitch band. According to biostratigraphic data, the dominant cycle in the studied section has a period of 20 k.y....

2011

Abstract: Low-Frequency Tremor Signals from a Hydraulic Fracture Treatment in Northeast British Columbia, Canada; #90187 (2014)

David W. Eaton, Mirko van der Baan, Jean-Baptiste Tary, and Kim Pike

Search and Discovery.com

... shoreface sands to offshore marine muds (NEB, 2009). The Montney consists of interbedded shale, siltstone and sandstone layers; the dominant lithology...

2014

Late Neogene Palynomorph Diagrams, Northern Gulf of Mexico

William C. Elsik

GCAGS Transactions

..., Source and distribution of palynomorphs in bottom sediments, southern part of Gulf of California: Marine Geology, v. 4, p. 467-524. Cushing, E. J...

1969

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