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The AAPG/Datapages Combined Publications Database
Showing 7,692 Results. Searched 195,452 documents.
Seismic Velocity Model Building in an Area of Complex Geology, Southern Alberta, Canada
Helen Isaac and Don Lawton
Search and Discovery.com
... sections, near-surface velocity models from refraction statics analysis, averaged sonic interval velocities and limited migration velocity analysis...
2009
ABSTRACT: SUBSURFACE GEOMETRY AND STRUCTURE OF THE SAN ANDREAS AND ASSOCIATED FAULT ZONES FROM HIGH-RESOLUTION SEISMIC IMAGING; #90014 (2003)
Catchings, R. D., M. J. Rymer, M. R. Goldman
Search and Discovery.com
... images show that the SAFZ consists of numerous interconnected faults with varying components of slip. Near-surface faulting occurs over lateral...
Unknown
Lateral Changes in Seismic Velocities and Their Effect on Depth Prediction
J. Pinchin, M. Bayly
Petroleum Exploration Society of Australia (PESA)
... to predict vertical velocities accurately. Firstly, variations in near-surface statics can, and do, affect stacking velocity measurements. Secondly...
1989
Abstract: Improving Reservoir Imaging with Time-Lag Fwi in the Partitioned Zone Between Kuwait and Saudi Arabia; #91204 (2023)
Art Petrenko, Trevor Coulman, Guangfu Shao, Ibrahim Hakam, Mohammed Almutairi, Sujoy Ghose, Kai Zhang
Search and Discovery.com
...-velocity anhydrite layer, underlying a very slow weathering layer (2500 ft/s near the surface). This combination limits the angle of transmitted...
2023
Seismic Refraction and Reflection in Caribbean Sea
N. Terence Edgar , John I. Ewing , John Hennion
AAPG Bulletin
... on the western flank of the Aves Swell. The upper crustal layer velocities range from 5.8 km/sec near Testigos Island to 6.9 km/sec on the western flank...
1971
Low-Energy Seismic Survey of Quaternary Materials, Rocky Mountain National Park, Colorado
William W. Locke
Rocky Mountain Association of Geologists
...). Such geophys~cal surveys are often commercial in nature, involve large energy sources, and are designed for deep penetration Conseresolut~on near-surface...
1987
Limitations on the Use of Conventional Ground Water Techniques in Characterizing the Fate of Produced Waters in On-Shore Gulf Coast Sediments
Jeffrey S. Hanor
GCAGS Transactions
... have Cl values of less than 20 mg/L, and the areal limit of the extent of near-surface contamination is taken to be their plot of the 100 mg/L dissolved...
1997
ABSTRACT: Evolution of a Near-Surface Model in an Area of Complex Topography; #90051 (2006)
Michael L. Pittman, Ralph Bridle, Robert E. Ley, II, Ameera A. Mustafa
Search and Discovery.com
... weathered and sub-weathered layers. This two-layer model was enhanced by extra upholes and control points in order to better define the near-surface...
Unknown
Abstract: Applications of Surface-Consistent Corrections, by Don W. Frye, M. Turhan Taner; #90976 (1976).
Search and Discovery.com
1976
-- no title --
user
Search and Discovery.com
...user Shallow VSP for Near-Surface Structure and Statics Soo-Kyung Miong, Robert R. Stewart, and Joe Wong University of Calgary, Calgary, AB, Canada...
Unknown
-- no title --
user
Search and Discovery.com
...user Shallow VSP for Near-Surface Structure and Statics Soo-Kyung Miong, Robert R. Stewart, and Joe Wong University of Calgary, Calgary, AB, Canada...
Unknown
Abstract: Near-Surface Volcanic Rocks in the SE Nechako Basin, BC: Results of Interpretation of Seismic Reflection Data using First-Arrival Tomographic Inversion; #90171 (2013)
Nathan Hayward and Andrew J. Calvert
Search and Discovery.com
... and Thickness of Volcanic Rocks in the Block A area. Ray paths from the tomographic models give information of layer thicknesses of near-surface rocks. The depth...
2013
Abstract: Seismic Surface Wave Inversion, by F. Ahmed and A.M. Almarzoug, #90188(2014)
Search and Discovery.com
2014
-- no title --
user
Search and Discovery.com
..., Calgary, AB, Canada [email protected] Abstract/Excerpt This study investigated the variation of near-surface velocities derived by the inversion...
2013
Abstract: A Structural Reinterpretation of Buck Mountain, Eureka Fold-and-Thrust Belt, Nevada, by S. Astle, J. Chester, W. Snyder, and L. M. Liberty; #90946 (1997).
Search and Discovery.com
1997
Some Relations Among Sedimentation, Stratigraphy, and Seismic Exploration
W. C. Krumbein
AAPG Bulletin
... to these relatively unconsolidated rocks, some Paleozoic limestones have velocities exceeding 18,000 ft./sec., even in near-surface depths. The increase...
1951
Application of Seismography to Geological Problems
Eugene McDermott
AAPG Bulletin
.... There is at the surface a thin layer of weathered sediments the velocity of which is very low. It is necessary to determine the thickness of this and the elevations...
1931
Adjustment of Land Derived Clays to the Marine Environment
Maurice C. Powers
Journal of Sedimentary Research (SEPM)
... of the near surface sediments studied. On the other hand, the detrital fraction (illite plus kaolinite) slightly outweighs the diagenetic fraction. In view...
1957
The Use of Physical Modeling to Resolve Offshore Seismic Problems
B. J. Evans, M. Urosevic
Indonesian Petroleum Association
.... The objective for building a model of the Perth Basin was to simulate the recording of poor field data over near-surface carbonates...
1995
The Central Oklahoma Earthquake of April 9, 1952
Ross R. Heinrich
Oklahoma City Geological Society
... and S wave velocities in each layer, and the paths of the three major P phases. Joliat's tables for travel times of the various earthquake phases...
1955
Opal-Cristobalite-Cemented Sands in Catahoula Formation--Implications on Source of Silica Cementation of Quartzose Sandstones: ABSTRACT
Ernest B. Ledger, Thomas T. Tieh
AAPG Bulletin
... developes in sands that are encased in tuffaceous silty mudstones. The development is apparently restricted to outcrops and near-surface zones of high...
1980
Analysis of Electromagnetic Depth Sounding Responses Over a Layered Earth: Investigating Oil & Gas Seeps in the Petroleum Provinces
Shastri L. Nimmagadda, Andrew Ochan
Petroleum Exploration Society of Australia (PESA)
... to commercial production. Because of sediment alteration in the near surface areas, comparatively high resistivity or low conductivity middle layer...
2016
ABSTRACT: Model-Based Coherent Noise Attenuation for Complex Dispersive Waves, by Strobbia, Claudio L.; Zarkhidze, Alexander; May, Roger; Quigley, John; Bilsby, Phillip; #90141 (2012)
Search and Discovery.com
2012
Abstract: Near Surface Anomalies and Solutions; #90211 (2015)
Todd Mojesky, David LeMeur, and Ali Karagul
Search and Discovery.com
...Abstract: Near Surface Anomalies and Solutions; #90211 (2015) Todd Mojesky, David LeMeur, and Ali Karagul Datapages/Search and Discovery Article...
2015
The application of seismic shothole drillers’ log data to petroleum exploration and development
I. Rod Smith
CSPG Bulletin
..., A. and Juhlin, C. 2006. Seismic tomography studies of cover thickness and near-surface bedrock velocities. Geophysics, v. 71, p. U77–U84. Best, M.E., Levson...
2012