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The AAPG/Datapages Combined Publications Database
Showing 2,589 Results. Searched 200,685 documents.
Polarity of Asymmetric Half-Grabens in the South Atlantic and Its Influence on Trap Integrity: Examples from Offshore Brazil and Uruguay; #30317 (2014)
Oscar Lopez-Gamundi and Ethel Morales
Search and Discovery.com
...Polarity of Asymmetric Half-Grabens in the South Atlantic and Its Influence on Trap Integrity: Examples from Offshore Brazil and Uruguay; #30317...
2014
Pre-Bonneville Quaternary Lakes in the Bonneville Basin, Utah
Charles G. Oviatt, Donald R. Currey
Utah Geological Association
...: Brigham Young University Geology Studies, v. 32, p. 19–37. Mankinen, E. A., and Dalrymple, G. B., 1979, Revised geomagnetic polarity timescale...
1987
Seismic Reflections from a Lau Basin Magma Chamber
Janet L. Morton, Norman H. Sleep
Circum Pacific Council Publications
... is interpreted as the top of a crustal magma chamber. Deconvolution shows that the polarity of the reflection phase is shifted 180° as expected for the top...
1985
Magnetostratigraphy: A Powerful Tool for High Resolution Age-Dating and Correlation in the Miocene Monterey Formation of California: Results From Shell Beach Section, Pismo Basin
Sheraz Khan Omarzai, Robert S. Coe, John A. Barron
Special Publications of SEPM
... California 95064 AND JOHN A U S ABSTRACT Geological Survey M S 915 345 BARRON Middlefteld Road Magnetic polarity stratigraphy...
1993
Fracture Identification and Evaluation Using S Waves, by Bob Hardage, #40792 (2011).
Search and Discovery.com
2011
Normalized energy-norm imaging condition for elastic reverse-time migration
Can Oren, Jeffrey Shragge
International Meeting for Applied Geoscience and Energy (IMAGE)
... decomposition, outputs a scalar image with attenuated backscattering artifacts and does not su↵er from polarity reversal at normal incidence. Realistic...
2022
Magnetic Stratigraphy and Tectonic Rotation of the Upper Paleocene Pattiway Formation, Caliente Range, San Luis Obispo County, California
Donald R. Prothero, Robert B. Vacca
Pacific Section SEPM
... of the formation showed a remanence held mostly in magnetite with goethite overprints, which is entirely reversed in polarity, and rotated approximately 60...
2001
Preliminary Paleomagnetic Investigation of the Winnfield Salt Dome Cap Rock, Louisiana
Wulf A. Gose , J. Richard Kyle , Mark R. Ulrich
GCAGS Transactions
... revealed the magnetic polarity of most samples. Using only reversely magnetized samples with a well-defined stable magnetization (N=50, 95 = 6.2°) yields...
1985
Two-Dimensional Geophysical Workstation Interpretation: Generic Problems and Solutions: Part 8. Integrated Computer Methods
Joe D. Stevens, Carl A. Marrullier
AAPG Special Volumes
... -- Well data files -- Cultural information files 2. Seismic preparation -- Datum reference plane -- Polarity and phase convention -- Trace amplitude...
1992
Testing the Daptocephalus and Lystrosaurus assemblage zones in a lithostratographic, magnetostratigraphic, and palynological framework in the Free State, South Africa
Robert A. Gastaldo, Johann Neveling, John W. Geissman, Cindy V. Looy
PALAIOS
... reverse polarity magnetozone that encompasses the reported assemblage-zone boundary, implying that these rocks are not correlative with the end-Permian...
2019
Identification and Initial Correlation of Magnetic Reversals in the Lower to Middle Ordovician of Northern Arkansas
M. Randy Farr, Donald R. Sprowl, Jordan Johnson
Special Publications of SEPM
... polar wander path for stable North America Component C is likely a chemical remanent magnetization CRM acquired during Permian time Polarity changes...
1993
Acostic Velocities, Synthetic Seismograms, and Lithologies of Thrusted Precambrian Rocks, Rocky Mountain Foreland
R. Randy Ray, Robbie Gries, James W. Babcock
Rocky Mountain Association of Geologists
... displays are normal polarity with an increase in rock velocity being a positive reflection coefficient which shows as a blackened peak wave form...
1983
Quantitative Interpretation in the Bedout Sub-basin: The value of seismic inversion in areas of sub-optimal seismic data quality
M. Kongawoin, A. Pauli, A. Locke, L. Hansen
Petroleum Exploration Society of Australia (PESA)
... dashed lines). SEG Standard Polarity. Seismic courtesy of TGS. Perth, WA, 2–5 September 2019 West Australian Basins Symposium 2019 5 M. KONGAWOIN...
2019
Microseismic Activity: What Does It Really Say? Insights from Coulomb Failure Function Analysis
Pierre-Francois Roux
Unconventional Resources Technology Conference (URTEC)
...-slip events with polarity reversal, regardless of the background stress. Such events typically strike parallel to the maximum horizontal stress, which...
2016
Magnetic Stratigraphy of the Upper Eocene-Upper Oligocene Lincoln Creek Formation, Porter Bluffs, Washington
Donald R. Prothero, Christopher D. Jaquette, John M. Armentrout
Pacific Section SEPM
..., but two out of three samples showed a clear polarity preference. The strata had only a shallow (6° to the northwest) homoclinal dip, so no fold test could...
2001
Magnetic Stratigraphy of the Upper Miocene (Wishkahan) Empire Formation, Coos County, Oregon
Donald R. Prothero, Jordan N. Lau, John M. Armentrout
Pacific Section SEPM
... a reversal test. The base of the sampled portion of the formation (Zone XIa) is reversed in polarity, followed by normal-reversed-normal magnetozones...
2001
Seismic Evidence for Widespread Possible Gas Hydrate Horizons on Continental Slopes and Rises
Thomas H. Shipley, Mark H. Houston, Richard T. Buffler, F. Jeanne Shaub, Kenneth J. McMillen, John W. Ladd, J. Lamar Worzel
AAPG Bulletin
... coefficients, reflection polarity, and pressure-temperature relations all support the identification of the anomalous reflections as the base of gas...
1979
Along-Axis Segmentation and Growth History of the Rome Trough in the Central Appalachian Basin1
Dengliang Gao, Robert C. Shumaker, and Thomas H. Wilson
AAPG Bulletin
... Appalachian foreland basin in eastern North America. On the basis of changes in graben polarity and rock thickness shown from exploration and production...
2000
S1P and S2P separation and shear wave splitting correction for SVP data
Yuan Yuan Yue, Zhongping Qian, Hongmei Nie, Pengyuan Sun, Zhiwen Deng, Jianfeng Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... and Fig.1d show obvious shear wave splitting characteristics, and the reflection events of SVP-T show four polarity reversals in or normal to fracture...
2022
Brazos A-105 D-Sand Reservoir Modeling by Integration of Seismic Elastic Inversion Results with Geostatistical Techniques
W. Xu, K. Wrolstad, D. Kramer, P. Dooley, K. Domingue, D. T. Vo
AAPG Special Volumes
... but bulk density decrease, relative to the overlying shale. This causes a midoffset polarity reversal and a near-zero stack trace amplitude (a class 2...
2006
Planktonic Foraminiferal Biostratigraphy and Paleomagnetics of Late Pliocene and Early Pleistocene Strata at Le Castella, Italy
James L. Lamb
GCAGS Transactions
... their planktonic foraminiferal biostratigraphy and geomagnetic polarity reversal patterns. The percentage distribution of warm- and cold- water planktonic...
1971
A novel vector PP imaging condition for elastic reverse-time migration
Bingkai Han, Weijian Mao, Xiao-Bi Xie
International Meeting for Applied Geoscience and Energy (IMAGE)
... in artificial polarity reversals. Yan and Xie (2012) propose an angle-domain imaging condition that applies filters to pre-stack angle-domain images to suppress...
2023
Impact of Seismic Attenuation on Downhole Microseismic Moment Tensor Inversion
Donghong Pei, Natalia Verkhovtseva, Jon Doucette, Price Stark
Unconventional Resources Technology Conference (URTEC)
... offset wells is illustrated in Figure 1. There are at least three seismic attributes (arrival time, seismic amplitude, and polarity) used in MTI...
2016
AVO Seismic Technology - Workshop Summary
Brian Russell
PTTC
... and the density as they differ in the sand and shale units. It is important to note that the P-wave response changes polarity in going from a wet to a gas...
2003
Pleistocene Chronology: Long or Short?
H. B. S. Cooke
Atlantic Geology
... of the fact that periodic inversions have taken place in the polarity of the Earth's magnetic field (Rutten, 1959) has led to the development...
1972