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The AAPG/Datapages Combined Publications Database
Showing 6,082 Results. Searched 200,636 documents.
Geochemical and micropaleontological evidence of paleoenvironmental change in the Late Cretaceous Western Interior Seaway from the Niobrara to the Pierre Shale Formation
Kira K. Timm, Stephen A. Sonnenberg
Rocky Mountain Association of Geologists
... Seaway, south-central Wyoming: AAPG Bulletin, v. 71, p. 859–881. 146 ANALYTICAL METHODS 147 RESULTS AND DISCUSSION 153 CONCLUSIONS 172...
2018
Biogeochemical Reactions in a Diffusion-limited Zone Around Wellbore Cement Relevant to Underground Hydrogen Storage
Christopher Rooney, Qingyun Li
Unconventional Resources Technology Conference (URTEC)
... of different oxidation states at a micron scale resolution, which is hard to obtain by other methods such as SEM-EDS. S maps of cement samples were collected...
2023
Diagenetic Transformation of Dolomite into Stevensite in Lacustrine Sediments from Jbel Rhassoul, Morocco
Azeddine Chahi , Philippe Duringer , Mohamed Ais , Mohamed Bouabdelli , Francois Gauthier-Lafaye , Bertrand Fritz
Journal of Sedimentary Research (SEPM)
... of diatom frustules (Badaut and Risacher 1983; Risacher 1992). METHODS In the field, sedimentological studies were made on the rhassoul facies...
1999
Nanoindentation on Fluid-altered Shale and Implications for Proppant Embedment
Qingyun Li, Cormac Killeen, Jason Trelewicz, Wei Xiong
Unconventional Resources Technology Conference (URTEC)
... geothermal systems, and gas storage in unconventional reservoirs. Methods Shale samples Three Marcellus shale samples were reacted with water-based fluids...
2023
A Multiscale Method for Characterizing Shales by Downscaling and Upscaling Statistically Sampled Datasets from Multiple Imaging Modalities; #41868 (2016)
Sreenivas Bhattiprolu, Andy Steinbach, Benjamin Tordoff
Search and Discovery.com
... methods fail at identifying rock types. Lithology Map A B End trim from a 1” core plug was imaged using secondary electrons (SE) on an SEM. The SEM-SE...
2016
Quartz Cement in Upper Jurassic Brora Formation Sandstone: What Electron Backscatter Diffraction Reveals about Microquartz Coatings
Sasha C. Haddad, Richard H. Worden, David Prior, Craig Smalley
Search and Discovery.com
... cement; in some cases, even on the same grains. This study combined the use of SEM techniques, including CL and EBSD, in order to address the occurrence...
Unknown
U-Series, Oceanographic and Sedimentary Evidence in Support of Recent Formation of Phosphate Nodules off Peru
W. C. Burnett, H. H. Veeh, A. Soutar
Special Publications of SEPM
... phosphorites as deduced by uranium The various assumptions and series methods rationale towards that end were presented in sea are interpret...
1980
Numerical Simulation the Supercritical CO2 Sequestration in Shale Gas Reservoir with Enhanced Gas Recovery
Yulong Zhao, Liehui Zhang, Ruihan Zhang, Shengnan Chen, Yu Pang, Ruihe Wang
Unconventional Resources Technology Conference (URTEC)
... because of different defects. Methods In this paper, the absolute adsorption isotherms of CH4 and CO2 on two Longmaxi core samples are shown in Figure 1...
2020
Measurement of Independent Variables - Composition
Peter T. Stanton, Michael D. Wilson
Special Publications of SEPM
..., cathodoluminescent microscopy (CL), back scattered electron/scanning electron microscopy (BSE/SEM), or microprobe analysis. Image analysis is based...
1994
Sem Observations on Some Sand Fulgurites from Northern Australia
Kenneth Pye
Journal of Sedimentary Research (SEPM)
... suggests cooling of the molten glass without internal constriction. CONCLUSIONS SEM examination has provided a valuable adjunct to conventional methods...
1982
Composition and Genesis of Temperate, Shallow-Marine Carbonate Muds: Spencer Gulf, South Australia
Laura G. O'Connell, Noel P. James
Journal of Sedimentary Research (SEPM)
... of Spencer Gulf expands on the methods of El-Sammack by implementing XRD mineralogical analysis and additional SEM point-counting techniques (similar...
2015
Thermally - Induced Fractures in Coal, Balingian Province, Sarawak, Malaysia
Search and Discovery.com
N/A
Sedimentology of the Joulters Cays Ooid Sand Shoal, Great Bahama Bank - Introduction to Appendices
P.M. (Mitch) Harris
Search and Discovery.com
... Tides Geochemistry B Methods of Study Climatological data Mapping Bottom Description and Sediment Sampling Sediment Sieving Sediment Thin section (Grain...
1977
Fracture characterization using rotary-drilled sidewall cores: an example from the Ellenburger Formation, West Texas
L. A. Gomez, J. F. W. Gale, S. C. Ruppel, S. E. Laubach
West Texas Geological Society
... in well A. Petrographic analysis A combination of conventional petrography, SEM-based cathodoluminescence (SEM-CL), and SEM-based energy-dispersive...
2001
Workshop: Blue Gem Geochemistry
James Hower
The Society for Organic Petrology (TSOP)
... in the production of silicon metal Blue Gem geochemistry • Methods • Density gradient centrifugation, without demineralization, of selected lithotypes...
2021
Chapter 6: Pyritization History in the Late Cambrian Alum Shale, Scania, Sweden: Evidence for Ongoing Diagenetic Processes
Neil S. Fishman, Sven O. Egenhoff, Heather A. Lowers, Adam R. Boehlke, Per Ahlberg
AAPG Special Volumes
...., 2013). METHODS Petrographic examination (transmitted and reflected light microscopy) was undertaken on ultrathin (~20 μm thick) polished thin sections...
2019
Pore-to-regional-scale Integrated Characterization Workflow for Unconventional Gas Shales
Roger M. Slatt, Paul R. Philp, Younane Abousleiman, Prerna Singh, Roderick Perez, Romina Portas, Kurt J. Marfurt, Steven Madrid-Arroyo, Neal O'Brien, Eric Eslinger, Elizabeth T. Baruch
AAPG Special Volumes
... correlation of time and facies: AAPG Methods in Exploration Series 7, p. 55. Recent discoveries of potentially vast global gas resources locked in shales...
2012
Source potential and reservoir characterization of the Cambay Shale, Cambay Basin, India: Implications for tight gas and tight oil resource development
Mateen Hafiz, Naveen Hakhoo, Ghulam M. Bhat, Sudeep Kanungo, Bindra Thusu, Jonathan Craig, and Waquar Ahmed
AAPG Bulletin
... Silurian black shales in the Chuandong Thrust Fold Belt, Southwestern China using low pressure N2 adsorption and FE-SEM methods: Marine and Petroleum...
2020
Feldspar dissolution-enhanced porosity in Paleoproterozoic shale reservoir facies from the Barney Creek Formation (McArthur Basin, Australia)
Elizabeth T. Baruch, Martin J. Kennedy, Stefan C. Löhr, and David N. Dewhurst
AAPG Bulletin
... in XRD pyrite abundance, however, were not recognized during SEM image analysis suggesting variability is sampling related. The EM mineral maps confirm...
2015
Significance of the Boring Sponge Cliona for the Origin of Fine Grained Material of Carbonate Sediments
Dieter K. Futterer
Journal of Sedimentary Research (SEPM)
... of the limited potential of the light optical methods. Through development of new methods using a scanning electron microscope (SEM) the fine fractions are now...
1974
Looking Down the Wellbore
David Macdonald, Dave Healy, Graham Webber
GEO ExPro Magazine
... of Petrophysics Specialist petrophysics may involve development of new logging tools or interpretation methods; support for geophysical studies of rock properties...
2014
New Frontiers in Salt Research; #80706 (2019)
Peter A. Kukla, Janos L. Urai, Frank Strozyk
Search and Discovery.com
... analysis to quantify tectonic stress Methods: → Development of microanalytical LA-ICP-MS methods for salt minerals → Triple-halogen (Cl, Br, I) analysis...
2019
Mechanisms of Organic/Inorganic Interactions in Sandstone/Shale Sequences
Ronald C. Surdam, Laura J. Crossey
Special Publications of SEPM
... blocked with reaction products, and no effective porosity enhancement occurs. 177 Our FIGURE 3-1. SEM photomicrograph of a corroded dolomite grain from...
1985
Oxygen Isotopic Analysis of Diagenetic Quartz Overgrowths from the Brent Sands: A Comparison of Two Preparation Methods
J. F. Brint , P. J. Hamilton, R. S. Haszeldine, A. E. Fallick, S. Brown
Journal of Sedimentary Research (SEPM)
...Oxygen Isotopic Analysis of Diagenetic Quartz Overgrowths from the Brent Sands: A Comparison of Two Preparation Methods J. F. Brint , P. J. Hamilton...
1991
Composite Particles in Mudstones: Examples from the Late Cretaceous Tununk Shale Member of the Mancos Shale Formation
Zhiyang Li, Juergen Schieber
Journal of Sedimentary Research (SEPM)
.... In this study, the Tununk Shale in Utah has been examined by optical and scanning electron microscopy (SEM) to determine how variations...
2018