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The AAPG/Datapages Combined Publications Database

Showing 365 Results. Searched 200,691 documents.

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Ascending

Dolomitization of supratidal to shallow-marine carbonates in the Pennsylvanian successions of the Wyoming Shelf

Sébastien Blanchard, Tracy D. Frank, Christopher R. Fielding

Rocky Mountain Association of Geologists

... captured using a constant exposure time to allow direct comparison between luminescence in different samples, although brightness was increased for (E...

2016

Analyzing Spatial Patterns in Modern Carbonate Sand Bodies From Great Bahama Bank

Paul M. Mitch Harris, Samuel J. Purkis, James Ellis

Journal of Sedimentary Research (SEPM)

... elevation models (DEMs) of Figure 1. The brightness and water-depth relationships are only an approximation for TOTO and Schooners because...

2011

Stalactite Growth Mediated by Biofilms: Example from Nani Cave, Cayman Brac, British West Indies

Brian Jones

Journal of Sedimentary Research (SEPM)

...© was used to adjust the brightness and contrast of the digital-field, thin-section, and SEM images. Biofilm and Microbes The microbes include...

2011

Kinneyia-type wrinkle structures on sandstone beds: not microbially induced but deformation features caused by synsedimentary earthquakes

Brian R. Pratt

PALAIOS

.... Photographs taken with a close-up lens were switched to grayscale and the brightness and contrast adjusted slightly in PhotoshopTM as needed to bring...

2021

Lacustrine cyclicity in the early Eocene Green River Formation, Uinta Basin, Utah: Evidence from X-ray fluorescence core scanning

Andrew P. Walters, Stephen R. Meyers, Alan R. Carroll, Tina R. Hill, Michael D. Vanden Berg

Journal of Sedimentary Research (SEPM)

... of visual lamination, mainly defined by differences in facies brightness, and elemental composition. Intensity values for grayscale measurements range...

2020

Taphonomy of Tiny Tetrapod Tracks in an Example from the Lower Permian (Cisuralian) Slupiec Formation (SW Poland)

Grzegorz Sadlok

PALAIOS

... color, contrast, and brightness adjustments), Inkscape (schematic drawings and figure labeling) and SAGA GIS (map) applications (Conrad et al. 2015...

2023

Application of Integrated Core and Multiscale 3-D Image Rock Physics to Characterize Porosity, Permeability, Capillary Pressure, and Two- and Three-Phase Relative Permeability in the Codell Sandstone, Denver Basin, Colorado

Alan P. Byrnes, Shawn Zhang, Lyn Canter, Mark D. Sonnenfeld

Unconventional Resources Technology Conference (URTEC)

... but is not percolating. G represents all solid mineral grains including Quartz, Feldspars, Carbonate, and Pyrite. Brightness of minerals varies with density...

2018

Chapter 4: New Evidence for Putumayo Crust in the Basement of the Falcon Basin and Guajira Peninsula, Northwestern Venezuela

Marvin Baquero, Sebastian Grande, Franco Urbani, Umberto Cordani, Chris Hall, Richard Armstrong

AAPG Special Volumes

... images (Figure 17) suggest three different zircon populations: (1) those with weak CL brightness, suggesting a metamorphic origin with a slightly darker...

2015

Application of Overburden Amplitude Variations to Constrain Hydrocarbon Column Heights in the Hammerfest Basin, Norwegian Barents Sea

Lidia Georgescu, Christian Hermanrud, Roar Heggland, Trine Helle Simmenes

AAPG Special Volumes

... variations of this horizon, with brights associated with the relay ramp and the northern fault intersection. The increased brightness to the east...

2017

Lower Cretaceous Barranquin Formation of Northeastern Venezuela

Erimar Von Der Osten

AAPG Bulletin

... member conformably overlies the Morro Blanco member and is recognized by the brightness of its shales, the predominance of sandstones over End_Page...

1957

Taphonomy of the lower Jurassic Konservat-Lagerstatte at Ya Ha Tinda (Alberta, Canada) and its significance for exceptional fossil preservation during oceanic anoxic events

A.D. Muscente, Rowan C. Martindale, James D. Schiffbauer, Abby L. Creighton, Brooke A. Bogan

PALAIOS

... multiple high-magnification images acquired with the same operating conditions (focus setting, brightness, contrast, dwell time, probe spot diameter, working...

2019

Vertebrate taphonomy, paleontology, sedimentology, and palynology of a fossiliferous Late Devonian fluvial succession, Catskill Formation, northcentral Pennsylvania, USA

David R. Broussard, Cayla J. Treaster, Jeffrey M. Trop, Edward B. Daeschler, Pierre A. Zippi, Matthew B. Vrazo, Michael C. Rygel

PALAIOS

... assembled in Adobe Photoshop and Illustrator. Images were corrected only for brightness and contrast. Mudrocks were sampled for palynology to provide...

2020

Interpreting pre-vegetation landscape dynamics: The Cambrian Lower Mount Simon Sandstone, Illinois, U.S.A.

Arnold Jan H. Reesink,, Jim Best, Jared T. Freiburg, Nathan D. Webb, Charles C. Monson, Robert W. Ritzi

Journal of Sedimentary Research (SEPM)

.... The brightness (resistive, white) of FMI images typically increases with decreasing porosity, which, for the LMSS, is dominantly controlled by grain size...

2020

Summary and Analysis: Chapter 24

Edgar Wesley Owen

AAPG Special Volumes

... that brightness is not evaluated equally by all observers. Anyway, something of great importance has come to hand, and its potentiality is not yet bounded...

1975

Factors controlling shale microstructure and porosity: A case study on upper Visean Rudov beds from the Ukrainian Dneiper–Donets Basin

D. Misch, J. Klaver, D. Gross, V. Mayer-Kiener, F. Mendez-Martin, J. Schmatz, and R. F. Sachsenhofer

AAPG Bulletin

... and Fe/Mg signals do not coincide, indicating (1) a pure calcite (Cc) and (2) a Ca-free Fe/Mg-carbonate phase (note the difference in brightness...

2018

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