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The AAPG/Datapages Combined Publications Database
Showing 365 Results. Searched 200,685 documents.
Spatial Data Visualization in Augmented Reality for Facility Operations and Asset Monitoring in Oil and Gas Industry
Eufrasia Bianca A. Diatmiko, Pachira Eizza Paramitha, Daniel Maynard Samosir
Indonesian Petroleum Association
... buildings. The brightness of the color indicates a higher level of suitability and, together with the Red-Yellow-Green color ramp, created site suitability...
2021
Rock Thin-section Analysis and Mineral Detection Utilizing Deep Learning Approach
Fatick Nath, Sarker Asish, Shaon Sutradhar, Zhiyang Li, Nazmul Shahadat, Happy R. Debi, S M Shamsul Hoque
Unconventional Resources Technology Conference (URTEC)
... vertical flip, random horizontal flip, random 900 rotate, random brightness and random contrast normalization. The model is trained in a GPU-equipped...
2023
Provenance of the Neogene Sedimentary Rocks from the Tukau and Belait Formations, Northwestern Borneo by Mineralogy and Geochemistry
Nagarajan Ramasamy, John Jong, Franz L. Kessler
Geological Society of Malaysia (GSM)
... of backscatter electron brightness and qualitative EDS spot chemical analysis. Detailed, quantitative EDS spot analyses of selected grains, typically chromite...
2017
Petrographic Image Analysis, I. Analysis of Reservoir Pore Complexes
Robert Ehrlich, Stephen K. Kennedy , Sterling J. Crabtree, Robert L. Cannon
Journal of Sedimentary Research (SEPM)
...-level" intensity value. The gray level, a measure of brightness, is restricted to integral values. Because the pixels form a grid, once the grid...
1984
The Coincidence of Macroscopic Paleocurrent Indicators and Magnetic Lineation in Shales from the Precambrian Belt Basin
Jurgen Schieber, Brooks B. Ellwood
Journal of Sedimentary Research (SEPM)
...) Same specimen as in C, but rotated by 45°. Brightness did not increase, and foliation is much more weakly developed than in the dolomite-poor sample...
1988
Enso and Sunspot Cycles in Varved Eocene Oil Shales from Image Analysis
Maurizio Ripepe , Lillian T. Roberts , Alfred G. Fischer
Journal of Sedimentary Research (SEPM)
... of this image on a monitor allows control of focus, brightness and contrast. When everything is tuned, the image (Fig. 3A) can be frozen and the data...
1991
Silt Aggregates in Laminated Marine Sediment Produced by Agglutinated Foraminifera
Jennifer Pike, Alan E.S. Kemp
Journal of Sedimentary Research (SEPM)
... recently, for bathyal and abyssal sediments (Kemp 1990; Grimm 1992; Kemp and Baldauf 1993). The backscatter coefficient h (recorded as image brightness...
1996
Remote Sensing for Petroleum
Joseph Lintz, Jr.
AAPG Bulletin
... of red, with brightness being a function of the vigor of the plant. Notice in Figures 2 and 3 that Ektachrome IR film possesses a greater clarity than...
1972
Applications of Fluorescence Microscopy to Study of Pores in Tight Rocks (1)
DANIEL J. SOEDER
AAPG Bulletin
... not accurately read these high-contrast images. Inasmuch as image brightness is directly proportional to magnification, it is sometimes difficult...
1990
Geologic Stereo Mapping of Geologic Structures with SPOT Satellite Data: Geologic Note (1)
Z. BERGER , T. H. LEE WILLIAMS , and D. W. ANDERSON
AAPG Bulletin
.... This method allows the interpreter to generate an image where the intensity values are more evenly spaced across the available brightness range...
1992
Characterization of the Porosity Distribution within the Clinton Formation, Ashtabula County, Ohio by Geophysical Core and Well Logging; #50737 (2012)
Julie Bloxson and Joseph Ortiz
Search and Discovery.com
... . A sample is taken over a small area (3 mm diameter at 1 cm sampling interval), with L* (brightness), a* (red-green contrast), b* (yellow-blue...
2012
3-D Seismic Volume Visualization in Color; #42491 (2020)
Satinder Chopra, Ritesh Kumar Sharma, Kurt J. Marfurt
Search and Discovery.com
... depends on the strength of the incoming signal, or its SPD, and its brightness is perceived in terms of the color. As our eyes are sensitive to only three...
2020
Evidence for biogenic copper (hemocyanin) in the middle Cambrian arthropod Marrella from the Burgess Shale
M. Jake Pushie, Brian R. Pratt, Tracy C. Macdonald, Graham N. George, Ingrid J. Pickering
PALAIOS
... detected across the face of the specimen. The relative brightness within each map corresponds with the detected elemental fluorescence, where brighter areas...
2014
Petrography and Provenance of the Glauconitic Sandstone, South-Central Alberta, with Comments on the Occurrence of Detrital Dolomite
H.R. Young, D.J. Doig
CSPG Bulletin
... of detrital dolomite based on the brightness and uniformity of luminescence, and demonstrates that some grains have been subjected to more than one cycle...
1986
Seasat Orbital Radar Imagery for Geologic Mapping: Tennessee-Kentucky-Virginia
J. P. Ford
AAPG Bulletin
...-canopy surface over the steep slopes appears to reflect the general shape of the underlying terrane. Strong local brightness variations occur within...
1980
Fault Control on Late Stage Diagenetic Creation and Enhancement of Reservoirs
Richard A. Inden, Randolph B. Burke
Williston Basin Symposium
.... Dissolution of anhydrite cement and dolomite replacive anhydrite. The alteration halos (closely spaced changes in brightness...
1995
Improving the repeatability of low magnification microwear methods using high dynamic range imaging
Danielle Fraser, Jordan C. Mallon, Robin Furr, Jessica M. Theodor
PALAIOS
.... In addition, we found that any darkness that occurred in the processed images could be rectified by increasing the gamma (brightness) setting after tone...
2009
Quantitative variability of burrow percentage estimated from 2D views: example from Thalassinoides-bearing strata, central Saudi Arabia
Hassan Abdalla Eltom, Abdullah Mohammed Alqubalee
PALAIOS
... (Schindelin et al. 2012). Brightness and contrast were automatically adjusted and applied to all the 2D slices. The 2D slices were loaded into Trainable Weka...
2022
Neoichnological Analysis of Mole Cricket Burrows: Implications of Substrate Moisture Changes on Preservation and Morphology
Daniel Sedorko, Diego L. Nascimento, Noelia Carmona, Renata G. Netto, Caio César Rangel, Kimberly Silva Ramos, Luciano Alessandretti
PALAIOS
... on collected samples and photographs edited using Adobe Photoshop for image adjustments (contrast, brightness, and color vibrance) to visualize...
2024
Integrated Seismic (IS) for Shale Gas Exploration and Management
Shastri L. Nimmagadda, Paola Andrea Cardona Mora, Said Hanafy
Petroleum Exploration Society of Australia (PESA)
... Isotherms Core_Descri Coal Brightness, Banding, Cleat Spacing, Mineralogy, Coal Thickness, Composition, Permeability, Heterogeneity of Coal Seam Sorption...
2018
3D Multiscale Imaging of the Distribution of Pores, Organic Matter and Oil in Place in Vaca Muerta Shale Samples
Silvano Sommacal, Andrew Fogden, Benjamin Young, William Noel, Alessio Arena, Leonardo Salazar, Tobias Gerwig, Qianhao Cheng, Andrew Kingston, Denis Marchal, Ana Maria Perez Mazas, Claudio Hugo Naides, Guillermina Kohler, Marcelo Cagnolatti
Unconventional Resources Technology Conference (URTEC)
... brightness of this feature in the tomogram difference of Figure 10(c) reflects the locally very high oil content, and its darkness in the inverted tomogram...
2016
Stratigraphic Framework, Structural Styles and Seismic Signatures of Downdip Yegua Gas-Condensate Fields, Central Wharton County, Texas Gulf Coast
Thomas E. Ewing , Grant Fergeson
GCAGS Transactions
..., that "in a good (i.e. massive sand) reservoir, the seismic will lie to you." The brightness of Class 1 fluid contacts and Class 2 signatures...
1991
Sandstone Petrology, Evidence from Luminescence Petrography
R. F. Sippel
Journal of Sedimentary Research (SEPM)
... grains appeari g very bright in the photographs are blue luminescing grains. These grains vary considerably in brightness from grain to grain...
1968
Flow Archives of Hurricane Harvey in Buffalo Bayou, Houston, Texas: Part 1—Flood, Adjust, and Recover
Katharine P. Kendall, Ariane Roesch, Andrew Stearns, Carolina Ramon-Duenas, Sarah Meyer, Jerome J. Kendall, Jan-Claire Phillips
GCAGS Transactions
... on the wall behind the peel that shifts in saturation and brightness as the viewer moves around the finished, hanging sculpture. This subtle color glow also...
2019
The Determination of Suspended Sediment Concentration in a Macrotidal System Using Landsat Data
C. L. Amos, T. T. Alfoldi
Journal of Sedimentary Research (SEPM)
... and achromatic (proprotional in the first three Landsat bands), and produces an isoluminous image (see Munday and Alfoldi, 1975) in which brightness...
1979