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The AAPG/Datapages Combined Publications Database

Showing 364 Results. Searched 200,663 documents.

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Involvement of microbial mats in delayed decay: An experimental essay on fish preservation

Miguel Iniesto, Ana I. Lopez-Archilla, Marian Fregenal-Martínez, Angela D. Buscalioni, M. Carmen Guerrero

PALAIOS

... to those of natural mats. Conductivity (as an indirect measured of salinity), temperature, and pH were monitored in the course of the experiment...

2013

A Methodology For Disaggregation and Textural Analysis of Quartz-cemented Sandstones

Sarah A. Maithel, Leonard R. Brand, John H. Whitmore

Journal of Sedimentary Research (SEPM)

... Materials: Berlin, Springer-Verlag, 520 p. Houseknecht, D.W., 1984, Influence of grain size and temperature on intergranular pressure solution, quartz...

2019

Porosity and mineralogy in the Lajas tight gas sandstone reservoir, Neuquén Basin, Argentina

Nathan Lavauzelle, Marja Siitari-Kauppi, Paul Sardini, Didier Loggia, Juuso Sammaljärvi, Daniel Beaufort, Ana Laura Rainoldi, Daniel Minisini

Journal of Sedimentary Research (SEPM)

... to 1200 × 1150 µm2 and an optimized contrast and brightness to discriminate each mineral phase from their average grayscale level. In this study...

2025

EXCEPTIONAL PYRITIZED CYANOBACTERIAL MATS ENCRUSTING BRACHIOPOD SHELLS FROM THE UPPER ORDOVICIAN (KATIAN) OF THE CINCINNATI, OHIO, REGION

MARK A. WILSON, PAUL D. TAYLOR

PALAIOS

... detail. The shape, size and SEM brightness of these framboids is consistent with pyrite framboids described numerous times in the literature (see...

2017

Coal Seam Gas Distribution in the Moranbah-German Creek Coal Measures, Bowen Basin, Queensland

Joan Esterle, Ray Williams

Petroleum Exploration Society of Australia (PESA)

... samples deleted from the database. Multiple samples within a seam were composited and normalised to a standard ash yield (15%), temperature (20°C...

2002

Quantitative Characterization of Deformation and Damage in Shale Under Compression Utilizing Digital Image Correlation

Fatick Nath, Edgardo Aguirre, Gabriel Aguirre, Jose L. Perez, Cesar Netro, Flavio Borjas, Valeria Limon

Unconventional Resources Technology Conference (URTEC)

... sources with adjustable brightness, and a computer with data acquisition. DIC collects 2 FPS during the diametrical and uniaxial compression of rock...

2022

The Effects of Manganese(II) And Iron(II) on the Cathodoluminescence Signal in Synthetic Apatite

Gabriel M. Filippelli, Margaret L. Delaney

Journal of Sedimentary Research (SEPM)

... of 0.7M NaCl at room temperature (23 ± 1°C). Two solutions were added to the reaction chamber at 7.0 ml/hr each using peristaltic pumps. The first...

1993

Evaluation of Spacing of Stylolites and its Implications for Self-Organization of Pressure Dissolution

L. Bruce Railsback

Journal of Sedimentary Research (SEPM)

... microlamination in chalk: Journal of Sedimentary Petrology, v. 58, p. 857-861. GROSHONG, R.H., JR., 1988, Low-temperature deformation mechanisms...

1998

Geology of a Continental Slope Oil Seep, Northern Gulf of Mexico

E. William Behrens

AAPG Bulletin

... higher than those usually occurring (2.55°C/km; 0.14°F/100 ft) on the Gulf Coast, to reach a temperature that would produce maturation within...

1988

Tectonics and Thermal Maturation of the Bakken Formation of the Williston Basin, with Comments on Landsat Analysis Applications*

Warren Shepard

Montana Geological Society

..., Role of temperature and time on organic metamorphism: AAPG Bull. v. 66, p. 1124-1129. Heck, Thomas, 1978, Depositional...

1991

The Asteroidal Impact Theory and Some Geologic Evidence for Asteroidal Impacts on Earth: A discussion of Direct and Indirect Data of Extraterrestrial Bodies and Their Motions and How They May Have Affected Earth Structures

Robert E. Cohenour, Byron J. Sharp

Utah Geological Association

..., and southern Russia. It was so luminous that one could read a newspaper without artificial light. The brightness of the nights gradually diminished and ceased...

1987

Reservoir Modeling by Constraining Stochastic Simulation to Deterministically Interpreted Three-dimensional Geobodies: Case Study from Lower Cretaceous McMurray Formation, Long Lake Steam-assisted Gravity Drainage Project, Northeast Alberta, Canada

Milovan Fustic, David Thurston, Adal Al-Dliwe, Dale A. Leckie, Dany Cadiou

AAPG Special Volumes

... are characterized by changes in color intensity and brightness contrast (Figure 10A, B) and are seen as strong curved reflectors in cross section views...

2013

Study of the Reed Dolomite Aided by Remotely Sensed Imagery, Central White-Inyo Range, Easternmost California

W. G. Ernst , Earnest D. Paylor II

AAPG Bulletin

... on relative brightness contrasts to differentiate lithostratigraphic units. RESULTS Remotely sensed imagery, combined with field investigations, allowed us...

1996

Chapter 16 - Diagenesis: Sulfate & Halide Cements and Authigenic Precipitates

Dana S. Ulmer-Scholle, Peter A. Scholle, Juergen Schieber, Robert J. Raine

AAPG Special Volumes

... with changes in temperature and water chemistry. Thus, what may be initially formed as gypsum cement, may transform to anhydrite, in surficial settings...

2014

Geology and Exploitation of Kaolin Deposits in the Bidor Area, Peninsular Malaysia

P. C. Aw

Geological Society of Malaysia (GSM)

... granitic texture, high grit and lower clay content compared to metasedimentary kaolin. The granitoid kaolin generally has a higher brightness. Quartz...

1986

RECENT STUDIES ON SASKATCHEWAN CLAYS

J.H. HUDSON

Saskatchewan Geological Society

... not be bleached by the standard method of acid hydrosulphite; in fact, a point or so of brightness was lost. At intervals during the past 20 years...

1987

The Geologic History of Quartz Grains, as Revealed by Color SEM-CL

John N. Hooke, Stephen E. Laubach

GCAGS Transactions

... as recycled authigenic quartz. Gneissic grains are invariably mottled and purple with sealed microfractures whose relative brightness varies with metamorphic...

2007

Authigenic Apatite in a Fluvial Sandstone Sequence: Evidence for Rare-Earth Element Mobility During Diagenesis and a Tool for Diagenetic Correlation

Jon E. Bouch,, Malcolm J. Hole, Nigel H. Trewin, Simon Chenery, Andrew C. Morton

Journal of Sedimentary Research (SEPM)

..., N.H., AND MORTON, A.C., 1995, Low-temperature aqueous mobility of the rare-earth elements during sandstone diagenesis: Geological Society of London...

2002

AAPG Archie Series, No. 1, Chapter 9: Borehole Image Logs in Thinly Bedded Reservoirs

Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia

AAPG Special Volumes

... on the right, pad and flap images have similar brightness and contrast. In most cases, button equalizaton is recommended. However, in some applications where...

2006

Techniques for Automated Measurement of Floc Properties

Gwyn Lintern, Gilliane Sills

Journal of Sedimentary Research (SEPM)

... shown in plot of mean pixel brightness across the image (Fig. 3B). The left-hand side of the plot shows a much higher overall illumination than...

2006

Textural and geochemical features of freshwater microbialites from Laguna Bacalar, Quintana Roo, Mexico

Set I. Castro-Contreras, Murray K. Gingras, Ernesto Pecoits, Natalie R. Aubet, Daniel Petrash, Saulo M. Castro-Contreras, Gregory Dick, Noah Planavsky, Kurt O. Konhauser

PALAIOS

... and brightness were modified). B) Domal stromatolites displaying a dark-gray coloration, and a smooth outer exterior. C) Stromatolite (5–15 wide) removed...

2014

Depositional setting and diagenetic processes and their impact on the reservoir quality in the late ViseanBashkirian Kashagan carbonate platform (Pre-Caspian Basin, Kazakhstan)

Paola Ronchi, Andrea Ortenzi, Ornella Borromeo, Michele Claps, William G. Zempolich

AAPG Bulletin

... temperature, and low-salinity fluid inclusions. The complex diagenetic evolution diagenesis produced better matrix porosity in the platform interior...

2010

An Integrated Multi-Analysis Procedure That Qualifies DHI’s: A Case History in the Louisiana Hackberry Trend

Russell Hoopes, W. M. Aber, Jr.

Bulletin of South Texas Geological Society

... (Figure 6), is a qualitative expression of the overall brightness or reflective amplitude of the data. The events to the right of the zero bias line...

1990

Three-dimensional Laser Scanning of Speleothems in the Carlsbad Caverns

Seiichi Nagihara, Ramey Goss, Bryan Musgrave, Jon Gamel, Glenn Hill, Thomas Bemis

West Texas Geological Society

... of each ray and measures the travel time and the brightness of the corresponding reflection. The survey data can be displayed on a computer screen...

2002

Enhancing SEM Grayscale Images through Pseudocolor Conversion: Examples from Eagle Ford, Haynesville, and Marcellus Shales

Wayne K. Camp

Unconventional Resources Technology Conference (URTEC)

... displayed in any given SEM image are the result contrast and brightness adjustments made by the SEM operator to produce a desirable image, and thus...

2013

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