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The AAPG/Datapages Combined Publications Database

Showing 23,917 Results. Searched 200,693 documents.

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Reducing parameter coupling effect for subsoil density estimation using 3D seismic full-waveform inversion with horizontal-force source

Y. Kawasaki, S. Minato, R. Ghose

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Estimating P-wave velocity (VP) of the shallow soil layers is difficult when using seismic frequencies up to say 50 Hz, due to too large wavelength...

2022

Stratigraphy and Paleoecology of the Tamiami Formation in Lee and Hendry Counties, Florida (1)

Douglas M. Peck , David H. Slater , Tom M. Missimer , Sherwood W. Wise, Jr. , Thomas H. O'Donnell

GCAGS Transactions

... species, rarely exceeds frequencies greater than 1% in the present day Gulf of Mexico (Phleger and Parker, 1951). It is found today as the dominant...

1979

Systematic Application of Seismic Amplitude Analysis for Exploration in the Upper Cibulakan Formation, Example from Gas Discovery LES-1 Offshore Northwest Java

Gunawan, V. L. Ball, Z. Imran, M. J. Gresko

Indonesian Petroleum Association

... and Pre-Parigi of the Upper Cibulakan. These data were acquired on 1/2-km line spacing and have dominant frequencies in the shallow section...

1995

Probable Burial Diagenetic and Provenance Effects on Dakota Group Clay Mineralogy, Denver Basin

Robert C. Rettke

Journal of Sedimentary Research (SEPM)

... (± chlorite, vermiculite) encountered from northeastern to southeastern "D" locales are interpreted as the results of differing sources. BOLES, J. R...

1981

CO2-EOR monitoring using time-lapse FWI with walkaway VSP datasets in a carbonate field onshore Abu Dhabi

Yuji Yamada, Shotaro Nakayama, Tomohide Ishiyama, Mikako Mochizuki, Takuji Mouri, Hidehiko Shimizu, Aysha Mohammad Al Hamedi, Afra Aljaberi

International Meeting for Applied Geoscience and Energy (IMAGE)

... and according to the same frequency schedule, starting from low frequencies and then moving to high frequencies up to 120 Hz. Wavenumber filter was applied...

2023

A Reappraisal of Dolomite Abundance and Occurrence in the Phanerozoic: PERSPECTIVE

S. Qing Sun

Journal of Sedimentary Research (SEPM)

... of marine-derived carbon sources, while the oxygen isotopic values of 2-4 fall within the range expected for dolomitization from evaporated seawater (e.g....

1994

Continent-Derived Vitric Mud and Mafic-Arc Rocks in Deep Kermadec Trench Diamictons

Peter F. Ballance , Harry A. Follas , Paul C. Froggatt , Eugene V. Mikhailic

Journal of Sedimentary Research (SEPM)

... slope in gravity flows that bypassed the mid-slope terrace. There was extensive mixing of products from various eruptions and sources during multiple...

2000

Increasing The Resolution of Seismic Imaging With Spectral Blueing, Spectral Decomposition RGB And HSV Blending to Delineate The Fluvial Facies on Fluvio Deltaic Environment

Aji Darma Maulana, Nine Safira, Ongki Ari Prayoga, Egie Wijaksono, Alit Ascaria

Indonesian Petroleum Association

... carries different geological information. The separation of these anomalies aims to obtain specific and accurate dominant frequencies in each formation...

2022

Integrating Experiments with Subtidal Death Assemblages to Unveil the Predatory Habits of Muricid Gastropods from the Southeastern Pacific

J. C. Martinelli, C. S. Ruz, A. Pérez-Matus, M. M. Rivadeneira

PALAIOS

... was Quintay, where the dominant drilled species belong to the Mytilidae and Nacellidae families (Table 2). In terms of drilling predation frequencies, our...

2022

Facies Successions in Peritidal Carbonate Sequences

Bruce H. Wilkinson , Nathaniel W. Diedrich , Carl N. Drummond

Journal of Sedimentary Research (SEPM)

... as the dominant depositional motif on epicontinental platforms, and many examples of such recurrent shallowing have now been reported from a large...

1996

Seismic Modeling of an Early Jurassic, Drowned Carbonate Platform: Djebel Bou Dahar, High Atlas, Morocco (1)

A. EWAN CAMPBELL and JAN STAFLEU

AAPG Bulletin

...-marine sediments. Exceptional outcrops allowed detailed lithologic models of the platform to be made with a resolution of a few meters. We constructed...

1992

Abstract: An Alternative Analysis of Surface Waves Data for Site Characterization

Abdul Rahim Samsudin, Suharsono, Abdul Ghani Rafek

Geological Society of Malaysia (GSM)

... an alternative analysis of the Rayleigh waves. This alternative analysis comprises four main steps (1) determine the range of frequencies based on the best...

2003

Ecology of Foraminifera and Associated Micro-Organisms from Mississippi Sound and Environs: ADDENDUM

AAPG Bulletin

... low frequencies of open-gulf forms at a few places near the mainland. Additional samples south of Biloxi Bay contain a relatively high percentage...

1954

Abstract: Characterizing Spatial Deformation Patterns in a Laramide Rocky Mountain Basin; #90301 (2017)

Cody W. Bomberger, Brianna Berg, Jenica Andersen, Michael H. Hofmann

Search and Discovery.com

... as prominent. Through creating a power summation map of these dominant frequencies, we show where the two prominent scales are most important in the basin...

2017

Deciphering Interplay of Tectonism and Redox Conditions on Temporal Variation in Total Organic Carbon Content in the Marcellus Shale: Evidence from Multiple Geochemical Proxies, #51421 (2017).

Ruiqian Chen, Shikha Sharma

Search and Discovery.com

...‰) in the OR zone indicate marine organic matter;, O δ13 -30.5‰) 3 30 the value increase upward in the OP suggest higher contribution of terrestrial sources...

2017

Holocene and Late Pleistocene Sediment Sources, Continental Shelf off Brunswick, Georgia

Robert E. Carver

Journal of Sedimentary Research (SEPM)

... of the shelf (L1 and L2) represent sands deposited during transgression and regression during Wisconsin time, the dominant sources should have been...

1971

Broadband Seismic Technology and Beyond: PART X: IsoMetrix … Isometric Sampling

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... WesternGeco Trident leaving Cape Town earlier this year after an IsoMetrix marine seismic technology upgrade. 68 GEOExPro September 2014 acoustic...

2014

Statistical imaging through strongly scattering near-surface with path summation techniques

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov, Dmitry Neklyudov

International Meeting for Applied Geoscience and Energy (IMAGE)

... process, thus emphasizing true geological interfaces, albeit with a slight attenuation of higher frequencies. We establish an important connection between...

2024

Cyclothems of the Black Warrior Basin, Alabama, U.S.A.: Eustatic Snapshots of Foreland Basin Tectonism

J. C. Pashin and R. A. Gastaldo, Jack C. Pashin

AAPG Special Volumes

... geodynamics indicates a transition from dominant third-order cyclicity to dominant fourth- and fifth-order cyclicity that may be equivalent to the 0.4...

2004

Controls on Deep-Marine Sedimentation

Donn S. Gorsline

Pacific Section SEPM

... University of Southern California Los Angeles, California 90089-0740 erosion may be the dominant local sources, plus some influx from outside the area via...

1990

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