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The AAPG/Datapages Combined Publications Database
Showing 1,447 Results. Searched 201,044 documents.
Acoustic Tomography for Reservoir Surveillance: Reservoir Characterization and Modeling
J. H. Justice, M. E. Mathisen, A. A. Vassiliou, S. Singh , P. S. Cunningham, J. R. Bulau
AAPG Special Volumes
... propagating through the medium to be imaged. In medical CAT scanning, the attenuation of X-rays propagating through the body to be imaged is the physical...
1991
Strategy for Developing and Calibrating Shale and Mudstone Chemostratigraphies Using Hand-Held X-ray Fluorescence Units, #40634 (2010)
Harry Rowe, Niki Hughes
Search and Discovery.com
..., Zn, etc.). THE X-RAY SOURCE (RHODIUM IN THIS CASE) EMITS HIGH-ENERGY X-RAYS THAT KNOCK INNER-SHELL ELECTRONS OUT OF THEIR SHELLS. 30000 0.4 0 0...
2010
Using B4 LiDAR and CRN Age Data to Constrain Slip Rates Along the San Andreas Fault System at Millard Canyon, San Gorgonio Pass; #41652 (2015)
Ian Desjarlais, Doug Yule, Richard Heermance
Search and Discovery.com
... of in-situ Cosmogenic Radionuclides (CRN) by spallation reactions. Primary cosmogenic rays originate in outer space from many sources including supernovae...
2015
When the Syn-Depositional Climatic Variations Influence My Source Rock Properties The Case Study of the Vaca Muerta, #51523 (2018).
Alain Lejay, Johannes Monkenbusch, Lionel Martinez, Gregory N. Boitnott, Laurent Louis, François Gelin
Search and Discovery.com
... (spectral gamma-rays and density), CT-scans and scratch tests for geomechanical studies. For gas wells only, they also comprise a continuous TOC...
2018
Brackish-water ichnological trends in a microtidal barrier island embayment system, Kouchibouguac National Park, New Brunswick, Canada
Tyler E. Hauck, Shahin E. Dashtgard, S. George Pemberton, Murray K. Gingras
PALAIOS
... transmission of X-rays such that the resultant image reflects internal structures in the sediment and not artifacts of the container (i.e....
2009
Petrological, Geochemical, and Statistical Analysis of Eocene–Oligocene Sandstones of the Western Thrace Basin, Greece and Bulgaria
Luca Caracciolo, Hilmar Von Eynatten, Raimon Tolosana-Delgado, Salvatore Critelli, Piero Manetti, Peter Marchev
Journal of Sedimentary Research (SEPM)
...) and the original variable axes (as rays) are projected onto the plane defined by the first two PC. For compositional data, Aitchison (1997) showed that a valid...
2012
Brackish and Non-Marine Miocene in Southeastern Texas
H. B. Stenzel , F. E. Turner , C. J. Hesse
AAPG Bulletin
... of their tolerance of low salinity. Mixed with the fossil oyster shells one finds teeth of rays (Plinthicus and Rhinoptera) and sea cows (Desmostylus sp...
1944
Thorium-to-Uranium Ratios as Indicators of Sedimentary Processes: Example of Concept of Geochemical Facies
John A. S. Adams , Charles E. Weaver
AAPG Bulletin
... the gamma rays from the thorium series, the uranium series, and potassium-40. In addition to providing all the information obtainable from a conventional...
1958
Chapter 14: Gravity, Seismic Reflection, and Tomographic Constraints on the Subduction-to-Strike-Slip Transition at the Southeastern Caribbean Plate Boundary Zone
Tricia G. Alvarez, Paul Mann, Carlos A. Vargas, Lesli J. Wood
AAPG Special Volumes
... formulas (Nolet, 1981). Traveltime tables are used to compute travel-times of the respective rays, correct station elevations and determine source...
2021
Petrogenesis of Early Cambrian Reef Limestones, Labrador, Canada
Noel P. James, Colin F. Klappa
Journal of Sedimentary Research (SEPM)
... (ooids, archaeocyathans, and the alga Renalcis). Synsedimentary cements, localized to reefs, are: 1) rays or botryoids in which each acicular crystal...
1983
Outcrop-to-Subsurface Correlation of the Cretaceous Cedar Mountain and Dakota Formations, Southern Uinta Basin
Mary L. McPherson, Brian S. Currie, Joshua P. Dark, Justin S. Pierson
Rocky Mountain Association of Geologists
... in the study area support this interpretation. Correlation Model Outcrop gamma rays were acquired with a scintillometer and the corresponding...
2008
Bacterial decomposition of avian eggshell: A taphonomic experiment
Denise L. Smith, James L. Hayward
PALAIOS
.... Preliminary trials with boiling water, bleach, hydrogen peroxide, alcohol, and x-rays showed that x-rays sterilized both the inside and outside...
2010
Trend Areas and Exploration Techniques: South-Texas Uranium: Geologic Controls, Exploration Techniques, and Potential
Kendell A. Dickinson, Joseph S. Duval
Houston Geological Society
... by delayed and captured gamma rays using a Cf252 neutron source: Econ. Geol., vol. 67, pp. 579-591. Offield, T. W., 1976, Remote sensing in uranium...
1977
Concretions as sources of exceptional preservation, and decay as a source of concretions: Examples from the Middle Devonian of New York
Donald D. Wilson, Carlton E. Brett
PALAIOS
... of the sulfide. Reactive iron in the anoxic zone is reduced to Fe2+. Sulfate reduction is basically a FIGURE 4—X-rays of specimen P in both: A) 3-D...
2013
Early Cretaceous Aptian charcoal from Xinchang Petrified Wood National Geopark of Zhejiang Province, eastern South China
Feng-Qi Zhang, Han-Lin Chen, Geoffrey E. Batt, Zheng-Xiang Li, Shu-Feng Ya
PALAIOS
.... 4E) with obliquely oriented, slitlike pores (Fig. 4F). The xylem rays of the material are uniseriate and mostly 2–5 cells thick. Cross-fields are 12...
2014
Sedimentology of Great Salt Lake
M. Dane Picard, Lee R. High Jr.
Utah Geological Association
... nucleus with well developed clear radial aragonite rays. Transmitted light, uncrossed nicols. Figure 11. Cerebroid oolite, Saitair Resort. The oolite...
1985
Pelagic Limestones of the Oberalm Beds (Upper Jurassic - Lower Cretaceous), Austrian Alps
Robert E. Garrison
CSPG Bulletin
... be rays from fragmented coccoliths; where separated from their parent discs they could not be easily recognized as skeletally derived. Other small...
1967
Shale Gas Development-Comprehensive Study in Indonesia
Hadist Ginanjar, Samuel Zulkhifly
Indonesian Petroleum Association
... and molecular structure of a crystal, in which X-rays bombard the crystalline atoms and result in a diffraction pattern in many specific directions...
2014
Outcrop-to-Subsurface Correlation of the Cretaceous Cedar Mountain and Dakota Formations, Southern Uinta Basin
Mary L. McPherson, Brian S. Currie, Joshua P. Dark, Justin S. Pierson
Utah Geological Association
... support this interpretation. Correlation Model Outcrop gamma rays were acquired with a scintillometer and the corresponding sections were described...
2008
Crustal Structure and Evolution of an Explosive Silicic Volcanic System at Yellowstone National Park
Robert B. Smith, Lawrence W. Braile
Wyoming Geological Association
... propagating refracted rays and similar to that of the thermally undisturbed lower crust of the surrounding Rocky Mountains. This suggests...
1982
High-Quality 3-D MicroCT Imaging of Source Rocks Novel Methodology to Measure and Correct for X-Ray Scatter
Alexander Katsevich, Michael Frenkel, Qiushi Sun, Shannon L. Eichmann, Victor Prieto
Unconventional Resources Technology Conference (URTEC)
... modality, is based on measuring the attenuation of X-rays as the source and detector rotate around the patient (Townsend, 2010). Through sophisticated...
2018
Analysis of Geophysical Well Logs from the Mariano Lake-Lake Valley Drilling Project, San Juan Basin, Northwestern New Mexico
James H. Scott
AAPG Special Volumes
... scatter, a small percentage of gamma rays originating from thorium-series isotopes also appears in the uranium and potassium channels, and a small...
1986
Coalbed Methane Applications of Wireline Logs: Chapter 13
Patrick L. Scholes, Dave Johnston
AAPG Special Volumes
... increases). This is simply because it is easier for gamma rays to find their way from the source through the rock to the detector when porosity...
1993
Nuclear magnetic resonance and x-ray microtomography pore-scale analysis of oil recovery in mixed-porosity carbonates
Hubert King, Michael Sansone, John Dunsmuir, Nicole Callen, Pavel Kortunov, Ye Xu, Antonio Buono, Bo Gao, and James Kralik
AAPG Bulletin
... experiments. The fiberglass body of this holder is relatively transparent to x-rays. The holder was fitted at top and bottom with specially designed...
2020
Cave Pearls and Pisoliths: A Sedimentological Comparison
Carol A. Hill
West Texas Geological Society
..., Brick-like texture radial rays in Triassic pisolites of Lombardy, Italy: a clue to distinguish ancient aragonitic pisolites: Sedimentary Geology, v...
1992