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The AAPG/Datapages Combined Publications Database
Showing 1,444 Results. Searched 200,673 documents.
Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
...-conversions have steeper raypath angles on the receiver side, the presence of dip at the base of the LVL causes a deviation of the rays out of the near...
2015
Abstract: Novel New Method for the Acquisition of High Resolution Outcrop Gamma Ray Profiles That Replicate Well Logs and Allow for Seamless Integration of the Two; #90301 (2017)
P. Ted Doughty
Search and Discovery.com
... of stratigraphic correlation and analysis in subsurface data sets. Subsurface gamma rays are acquired with essentially the same instruments that convert unit time...
2017
The Application of Induced Gamma-Ray Spectroscopy in Cased Hole Formation Evaluation in Sumatra, Indonesia
W. D. Morgan, R. C. Hertzog
Indonesian Petroleum Association
... converts the neutron kinetic energy into gamma-rays, is referred to as an inelastic neutron reaction. It is the most efficient means to induce carbon gamma...
1983
Clay Minerals of Laramie Formation, Golden, Colorado, Identified by X-ray Diffraction
Arthur James Gude, rd
AAPG Bulletin
... rays by crystalline substances. Friedrich and Knipping confirmed Laue's remarkable deductions experimentally. The father-son team of W. H. Bragg and W...
1950
The Miocene of Northwestern Baja California, Mexico
John A. Minch
Pacific Section SEPM
... the vicinity of La Mision have yielded a wellpreserved fauna· consisting of diatoms, radiolarians, foraminifers, mollusks, sharks, rays, bony fish, marine...
1970
Does Mother Earth Show Her Age?
A. C. Lane
Tulsa Geological Society
..., gamma-rays and beta-rays. The method of estimating the age of the Earth by atomic disintegration has been investigated and greatly refined since Holmes...
1939
Unique and Fast Analysis in the Field
Alireza Somarin
GEO ExPro Magazine
... analysis technique in which a sample is bombarded with highenergy primary x-rays or gammas. This causes the sample to emit characteristic ‘secondary...
2013
The Limitations of Seismic Modelling of Geological Structures
B. L. N. Kennett
Petroleum Exploration Society of Australia (PESA)
... reflector' model, which is often augmented by including diffraction points with a spray of rays. Such modelling depends on the assump• tion of pointwise...
1985
A Nigerian Renaissance: Renewed interest in Africa's largest oil producer
John Balch, Matt Lamont, Polarcus, DownUnder GeoSolutions
GEO ExPro Magazine
... relative amplitude Kirchhoff pre-stack depth migration with the Green’s functions determined by dynamic ray tracing – the rays are traced through...
2014
Memorial: John Wesley Merritt (1885-1958)
Ruth Sheldon Knowles
AAPG Non-Technical and Memorials
... measurements, he selected gamma rays as the most dependable medium. John was always the true scientist, constantly shifting his field and laboratory...
1958
The Miocene of Northwestern Baja California, Mexico
John A. Minch
Pacific Section SEPM
... Mision have yielded a wellpreserved fauna consisting of diatoms, radiolarians, foraminifers, mollusks, sharks, rays, bony fish, marine mammals...
1970
ABSTRACT: Application of Etching and SEM in Botanical Analysis of Coal
T.A. Moore
The Society for Organic Petrology (TSOP)
.... In Figure 1D (tangential longitudinal section), the uniseriate nature of the rays is visible. In secondary xylem the presence of uniseriate rays and lack...
1992
The Geiger Counter X-Ray Diffractometer for Determining the Rutile Content of Heavy Mineral Separations of Beach Sands: NOTES
David S. Buist
Journal of Sedimentary Research (SEPM)
... that the diffracted X-rays from the unknown material and the internal standard will be influenced in the same way. The theoretical and mathematical aspects...
1963
Precise Sediment Density Determination by Gamma-ray Attenuation Alone: NOTES
Robert B. Whitmarsh
Journal of Sedimentary Research (SEPM)
... of gamma-rays passing through a known volume of sediment indirectly leads to a determination of the sediment density (Evans, 1965; Preiss, 1968). The basic...
1971
Extended Abstract: Climate Change: Facts and Fictions
W. C. ‘Rusty’ Riese
GCAGS Transactions
.... Dommen, A. Downard, M. Ehn, and R. C. Flagan, 2011, Role of sulphuric acid, ammonia and galactic cosmic rays in atmospheric aerosol nucleation: Nature, v...
2014
SEM, XRD, CL, and XF Methods: Part 5. Laboratory Methods
J. B. Thomas
AAPG Special Volumes
... of carbon or gold-palladium. A spectrum of X-rays are generated as the beam hits the sample. The X-radiation is resolved into characteristic peaks...
1992
Silver Coating Inhibits Electron Microprobe Beam Damage of Carbonates: RESEARCH METHOD PAPER
Michael P. Smith
Journal of Sedimentary Research (SEPM)
... using wavelength dispersive spectrometry (WDS) under optimum conditions, and the resolution of characteristic X-rays is significantly lower using EDS...
1986
Abstract: Accurate Conversion between Offset Image Gathers and Angle Image Gathers, by Jianming Sheng and Chengbin Peng; #90105 (2010)
Search and Discovery.com
2010
Abstracts: The Integrated Use of new Wireline Technologies to Reduce Full Bore Core Requirements and Cost in the Canadian Oil Sands; #90173 (2015)
Grant D. Ferguson and Amer Hanif
Search and Discovery.com
... permits the use of a much larger detector to improve the count rates of the gamma rays emitted from the elements present in the formation as a result...
2015
Non-traditional Techniques for Microporosity Evaluation in a Low-Permeability Carbonate Reservoir From a Giant Reservoir Offshore Abu Dhabi, U.A.E, #41270 (2014)
Tiffany Dawn Jobe
Search and Discovery.com
... F5b F6 F7 QEMSCAN ® -BSE mode Energy Dispersive X-Ray (EDS) Detector Energy Dis~ive X-Ray (EDS) Detector r::::.... X-rays ,\~SES l' e- /B...
2014
The Earthquake Process in Oklahoma; #80497 (2015)
Robert B. Herrmann, Han Su, Hao Guo
Search and Discovery.com
... that pattern for deeper depths does not build up as rapidly 18 Rays Grazing rays are almost super-critical in the layer and thus have large...
2015
Multi-Azimuth Coherence Attribute Applications; #42284 (2018)
Satinder Chopra, Kurt J. Marfurt
Search and Discovery.com
... is experienced by rays traveling perpendicular to a discontinuity. Rays travelling parallel to a discontinuity are also diffracted, but only as forward...
2018
A Practical Approach to Seismic Imaging of Complex Geology, by M. Brzostowski and T. Jones #40057
Search and Discovery.com
N/A
Tomography Techniques Applied to Near Surface Velocity Models in Complex Areas of Colombia
Jorge Monsegny, Saúl Guevara
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... that follows the schemes used in Nishi (2001) and Korenaga (2000). It uses a graph theory method as a first stage and later improves the rays using a ray...
2008
Geophysical Techniques Used in Uranium Exploration
P.A. Meyer
Rocky Mountain Association of Geologists
... with thorium and potassium that radiate alpha, beta and gamma rays; direct methods have been developed and improved upon to measure this radiation...
1977