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The AAPG/Datapages Combined Publications Database
Showing 3,961 Results. Searched 200,636 documents.
Using Volumetric Calculators for Better Accuracy; #41757 (2016)
Lennon Infante Paez, Kurt J. Marfurt
Search and Discovery.com
.... In contrast, the linearly interpolated phase generates inaccurate estimates between samples (yellow arrows) when the phase “wraps” around the circle. The spline...
2016
The Global Storage Readiness: A Global CCS Institute Analysis, #80528 (2016).
Chris Consoli, Rick Causebrook
Search and Discovery.com
... Circle areas proportional to GtCO2 stored Source: IEA (2012) Storage is globally distributed Highly Suitable Suitable Possible Unproven...
2016
Optimizing Perforations; #42159 (2017)
David J. Hatton, Payam Kavousi Ghahfarokhi
Search and Discovery.com
... using ANSYS software for a homogenous media with eight perforations, using laminar and turbulent models shows that if the circle was changed...
2017
Seismic Architecture of Outer Shelf Canyon Segments in the Lüderitz Basin, Offshore Namibia, #11222 (2019).
Ansgar Wanke, Rayde Toirac-Proenza,
Search and Discovery.com
.... The canyon system in the Lüderitz Basin (circle 2) was probably linked to the Tsauchab River (aŌer Bagguley and Prosser, 1999). The modern Tsauchab River...
2019
Reconstructing the paleoecology of Taung, South Africa from low magnification of dental microwear features in fossil primates
Frank L'Engle Williams, James W. Patterson
PALAIOS
... 5 Pp. antiquus (Pp. a.); circle 5 Pp. jonesi (Pp. j.); triangle 5 Pp. broomi (Pp. b.); rectangle 5 indeterminate (indet.). taphonomic evidence...
2010
Modeling the Motion Histories of the Point Arena and Central Salinia Terranes
L. R. Kanter, M. Debiche
Circum Pacific Council Publications
... by a small circle on the globe (Table 3). Tectonostratigraphic Terranes, Pacific Northeast Quadrant 235 Figure 6—Position of central Salinia (in large...
1985
Permian Blanket Sandstones of Colorado Plateau
D. L. Baars
AAPG Special Volumes
... miles northeast of Mexican Hat, Utah. After Reiche, 1938. The inner black circle represents 5° of dip; the outer circle is 30° of dip. The small arrow...
1961
Paleomagnetic Correlation of Units Within Chugwater (Triassic) Formation, West-Central Wyoming
M. Dane Picard
AAPG Bulletin
... assigned to interval 5a. The directions of magnetization of the samples in interval 5a are along the great circle between Table V. DIFFERENCES IN AVERAGE...
1964
Application of seismic curvature attributes in the delineation of coal texture and deformation in Zhengzhuang field, southern Qinshui Basin
Lutong Cao, Yanbin Yao, Dameng Liu, Yanhui Yang, Yingjin Wang, and Yidong Cai
AAPG Bulletin
... of the angle dω with respect to the arc length dS. A circle, called the osculating circle, has a radius defined as the radius of curvature, R...
2020
Geotectonic Setting of Australasia
S. Warren Carey
Petroleum Exploration Society of Australia (PESA)
.... The innermost circle on Figure 2 (from Wilson & McElhinny, 1974) shows the resulting statistical position of the north Figure 1: Wilson (1970) found...
1985
Microfractures in Chalks of Albuskjell Field, Norwegian Sector, North Sea: Possible Origin and Distribution
N. L. Watts
AAPG Bulletin
... on a shear stress (^tgr) versus normal (effective) stress plot (see Gretener, 1978, for a full discussion of Mohr circle theory and representation...
1983
Characterization of the Mississippian chat in south-central Kansas
W. Lynn Watney, Willard J. Guy, Alan P. Byrnes
AAPG Bulletin
...: crossed gray square = chert conglomerate, solid diamond = autoclastic chert with clay, open circle = autoclastic chert, gray triangle = nodular chert...
2001
PALEOMAGNETIC EVIDENCE CONCERNING POLAR WANDERING AND CONTINENTAL DRIFT
K. M. Creer
Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)
...) of Cambridge University, and it is possible to calculate the radius of a circle of confidence about the mean direction within which there is a certain...
1960
The effect of morphology on postmortem transportation of bivalves and its taphonomic implications
Devapriya Chattopadhyay, Ashish Rathie, Anirban Das
PALAIOS
... between mass and size of Donax scortum shells. Solid circle 5 fresh shells (N 5 48), open square 5 altered shells (N 5 26). mass of the Donax scortum...
2013
Carbon dioxide sealing capacity: Textural or compositional controls? A case study from the Oklahoma Panhandle*
Constantin Cranganu and Hamid Soleymani
Environmental Geosciences (DEG)
... (the most numerous samples analyzed).We carried out separate PCAs for shale and limestone samples and plot the results on the correlation circle...
2015
Unleashing geological sequestration potential of mature oilfield by enforcing 4-dimensional seismic model-based inversion in Widuri Field, Indonesia
Dwandari Ralanarko, Brimas Aptanindia Pangestu, Edy Sunardi, Ildrem Syafri, Billy Gumilar Adhiperdana
Geological Society of Malaysia (GSM)
... in the two data, namely on the monitor data the appearance of a low impedance value is indicated by a thin black circle, the low impedance value...
2024
Production-induced fault compartmentalization at Elk Hills field, California
Alan P. Morris, Kevin J. Smart, David A. Ferrill, Nathaniel E. Reish, Peter F. Cowell
AAPG Bulletin
... by the fault zone and not by its clay content.Figure 1. Mohr circle construction showing hypothetical failure envelope for intact rock and the reactivation...
2012
Impact of the Stress State and the Natural Network of Fractures/Faults on the Efficiency of Hydraulic Fracturing Operations in the Goldwyer Shale Formation
Partha Pratim Mandal, Reza Rezaee, Joel Sarout
Australian Petroleum Production & Exploration Association (APPEA) Journal
... Hy Fault D Fault C 20 Fault A 0 0 10 20 σhmin Fault E 30 40 σv 0 50 Normal stress, Sij (MPa) Fig. 9. (a) Mohr circle diagram...
2020
Correlation of the Permian of Southern Utah, Northern Arizona, Northwestern New Mexico, and Southwestern Colorado
A. A. Baker, John B. Reeside, Jr.
AAPG Bulletin
... mingle. The section at Jemez Pueblo described in the discussion of Figure 4 is given on Figure 5 for purposes of comparison. Circle Cliffs, Utah...
1929
Fractured reservoirs in the Eastern Foothills, Colombia, and their relationship with fold kinematics
Javier Tamara, Andrés Mora, Wilmer Robles, Andreas Kammer, Alberto Ortiz, Nelson Sanchez-Villar, Alejandro Piraquive, Luz Helena Rueda, Wilson Casallas, Jaime Castellanos, Jorge Montaña, Luis Guillermo Parra, Jaime Corredor, Ángela Ramirez, and Enus Zambrano
AAPG Bulletin
... of the number of intersections of fracture traces with a circle or a rectangle (window), and counting the number of fractures whose fracture tips...
2015
Fracture system evolution within the Cardium sandstone, central Alberta Foothills folds
William R. Jamison
AAPG Bulletin
...; Figure 1). Figure 5. (A) Slickenside data are presented as lineations on the fracture surface (points on a great circle, in this case j and k...
2016
Characterization of five unconventional diatomaceous (opal-A) reservoirs, Monterey Formation, San Joaquin Valley, California
David K. Larue, Christian Hager, Thomas Merrifield, Gena M. Evola, David Crane, and Phillip Yorgensen
AAPG Bulletin
..., 1996). The nomenclature for the diatomite at the Westates anticline is confusing: in figures 9 and 10 of Gregory (1996), the Circle marker is mapped...
2021
Feeding traces associated with bird tracks from the Lower Cretaceous Haman Formation, Republic of Korea
Amanda R. Falk, Stephen T. Hasiotis, Larry D. Martin
PALAIOS
... the same diameter on the sediment surface. In several cases (Tracks 5–7, 9) the bird tracks overprinted the burrows (Fig. 5C, circle), i.e., a Steinichnus...
2010
The Triassic Jurassic boundary carbon-isotope excursions expressed in taxonomically identified leaf cuticles
Karen L. Bacon, Claire M. Belcher, Stephen P. Hesselbo, Jennifer C. McElwain
PALAIOS
... composition. Most Triassic beds below the boundary group together (light gray circle); Bed 3 and the TJ boundary bed, Bed 5, group together (Fig. 5...
2011
Microcrystalline Quartz Generation and the Preservation of Porosity in Sandstones: Evidence from the Upper Cretaceous of the Subhercynian Basin, Germany
Marsha W. French, Richard H. Worden, Elisabetta Mariani, Richard E. Larese, Russell R. Mueller, Chris E. Kliewer
Journal of Sedimentary Research (SEPM)
... image). The traces of the “great circle” of each of these sets of microcrystalline quartz [0001] data are shown by the white line through the pole...
2012