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The AAPG/Datapages Combined Publications Database
Showing 3,218 Results. Searched 200,619 documents.
Geostatistical Simulation of Facies and Petrophysical Properties for Heterogeneity Modeling in A Tidal Depositional Environment: A Case Study From Upper Shale Member in A Southern Iraqi Oil Field
Watheq J. Al-Mudhafar
Unconventional Resources Technology Conference (URTEC)
... (solve the kriging equation). It was investigated that the spherical modeling is the best fit for all the indicator variograms for all the lithotypes...
2021
The Effects of Entrainment on the Hydraulic Equivalence Relationships of Light and Heavy Minerals in Sands
Rudy L. Slingerland
Journal of Sedimentary Research (SEPM)
... the force imparted to a stationary spherical particle within a moving fluid: Fd = CdAp[fV2]/[2] (2) where: Cd = the coefficient of drag Ap...
1977
Upwelling, Thermoclines and Wave-Sweeping on an Equatorial Carbonate Ramp: Lower Carboniferous Strata of Western Canada
Richard T. Brandley, Federico F. Krause
Special Publications of SEPM
...Upwelling, Thermoclines and Wave-Sweeping on an Equatorial Carbonate Ramp: Lower Carboniferous Strata of Western Canada Richard T. Brandley, Federico...
1997
Tropical vs. Temperate Permian Carbonates in the Sverdrup Basin, Canadian Arctic
B. Beauchamp
CSPG Special Publications
... carbonates were distributed along a gradient of increasing bathymetry. Choloroforam carbonates formed above and below wave base in the shallowest...
1993
Abstract: Use of petrographic investigations in prediction of combustion behaviour of inertinite rich coal and char and flyash formation
A. Kumar Varma, M. Kumar, V. Kumar Saxena, A. Sarkar
The Society for Organic Petrology (TSOP)
... which they have been prepared. SEM (scanning electron microscope) analyses of the coarsest fraction of the fly ash reveal that both spherical...
2008
"Cave Pearls" in a Cave Near Columbia, Missouri
W. D. Keller
Journal of Sedimentary Research (SEPM)
...) most of which show in thin section a fibrous radial structure. They are spherical to elliptical in shape, in FOOTNOTE 1. Hess, F. L., Oolites or cave...
1937
Available Methods for the Analysis of Vectorial Data: DISCUSSION
Ronald Green
Journal of Sedimentary Research (SEPM)
... to scepticism. However, it should be pointed out that Fisher's method is for a vector population in which the directions satisfy a spherical normal...
1964
Depositional system and lake-stage control on microbialite morphology, Green River Formation, eastern Uinta Basin, Colorado and Utah, U.S.A.
Abdulah Eljalafi, J. Frederick Sarg
Journal of Sedimentary Research (SEPM)
... environments used in this study are defined by energy level and comprise: i) the littoral zone, above fair-weather wave base; ii) the sublittoral zone...
2021
Accumulation of Fine-Grained Sediments in a Periodically Energetic Clastic Environment, Cape Lookout Bight, North Carolina
John T. Wells
Journal of Sedimentary Research (SEPM)
... that is neither below wave base during frequent winter storms nor subjected only to negligible fairweather tidal currents. Much of the sediment settling...
1988
The Environmental Significance of Conglomerates
W. H. Twenhofel
Journal of Sedimentary Research (SEPM)
.... If the last transportation was of brief duration and distance, inherited features might be the most obvious. This may be illustrated by the highly spherical...
1947
Algal Cap for a Niagaran (Silurian) Carbonate Mud Mound of Indiana
Daniel A. Textoris
Journal of Sedimentary Research (SEPM)
... mound displays three main zones: (1) a lower fossiliferous and stromatactis dolosiltite zone representing a core that probably formed below wave base, (2...
1966
2008 CSPG/CSEG/CWLS GeoConvention 2008, May 12-15, 2008, Calgary, Alberta, Canada; Abstracts, #90170 (2013).
Search and Discovery.com
2013
Beach Environment: Chapter 5: PART 1
Richard F. Inden, Clyde H. Moore
AAPG Special Volumes
..., shallow, subtidal-to-supratidal, strandline lithotopes. At the same time, however, higher energy wave-dominated, strandline deposits (for example...
1983
Pennsylvanian Sedimentation in Northeastern Socorro County, New Mexico
Raymond Sidwell, G. Frederick Warn
Journal of Sedimentary Research (SEPM)
... in the dark gray to black, medium to thick bedded limestones. The siliceous material is present as nodules, as disseminated grains and as spherical masses...
1951
Ferruginous Oolites and Pisolites
Hugh A. Jones
Journal of Sedimentary Research (SEPM)
... there is no evidence of the strong wave and current action postulated by Carozzi. The close association of distorted and undistorted oolites and the random...
1965
Physical characteristics and distribution of bottom sediments from the Kelantan River Delta towards the South China Sea continental shelf, Malaysia
Nurul Afifah Mohd Radzir, Che Aziz Ali, Kamal Roslan Mohamed
Geological Society of Malaysia (GSM)
... (Malaysia Meteorological Department, 2014). Koopsman (1972) recorded that the Kelantan River Delta is influenced by a destructive wave type that caused...
2018
Processes Associated with Microbial Biofilms in the Twilight Zone of Caves: Examples from the Cayman Islands
Brian Jones
Journal of Sedimentary Research (SEPM)
... the well-developed wave-cut notch that marks the position of the Sangamon highstand (Fig. 1C). The cave has a large (3-4 m high, 30 m wide) entrance...
1995
Pore structure and fractal characteristics of Ordovician Majiagou carbonate reservoirs in Ordos Basin, China
Jin Lai, Song Wang, Guiwen Wang, Yujiang Shi, Taiping Zhao, Xiaojiao Pang, Xuechun Fan, Ziqiang Qin, and Xuqiang Fan
AAPG Bulletin
..., but they probe different aspects of the pore systems. This study assumes the pore shapes to be spherical in general, and then the fractal dimension...
2019
S/N RATIO AND BANDWIDTH CONSIDERATIONS WHEN UTILIZING SEISMIC DATA IN EXPLORING FOR SUBTLE TRAPS - EXAMPLES FROM THE KNOX PLAY
Edward R. Tegland, Exploration Development, Inc., S. Pikes Peak Dr., Parker, CO Patrick H. Bygott, Exploration Development, Inc., S. Pikes Peak Dr., Parker, CO
Ohio Geological Society
... technique as employed in Knox exploration involves primarily 2D (two-dimensional) and 3D (three-dimensional) compressional wave...
1999
Introductory Perspectives, Basic Carbonate Principles, and Stratigraphic and Depositional Models
Harry E. Cook
Special Publications of SEPM
... meters, well oxygenated water, and water conditions commonly below wave base. The inner shelf is charac- terized by restricted marine to hypersaline...
1983
Late Cretaceous to Present-Day Opening of the Southwest Pacific Constrained by Numerical Models and Seismic Tomography
Kara J. Matthews, Maria Seton, Nicolas Flament, R. Dietmar Müller
Petroleum Exploration Society of Australia (PESA)
... plate motions. We use the 3D spherical mantle-convection code CitcomS coupled to the plate reconstruction software GPlates, with plate motions since 200...
2012
ABSTRACT: VARIATION IN MERCURY EMISSIONS FROM ALBERTA POWER PLANTS OVER THIRTY-SIX WEEKS PERIOD
F. Goodarzi, J. Reyes, H. Sanei, K. Abraham
The Society for Organic Petrology (TSOP)
... the spherical reactive chars that have web-like interconnected lattices. The majority of the reactive char consists of large porous subangular and spherical...
2006
"Quick Preparation of Slides of Well-Oriented Clay Minerals for X-Ray Diffraction Analyses," A REPLY
Nenad Spoljaric
Journal of Sedimentary Research (SEPM)
... to herein is the 'equivalent spherical diameter' of the particles. For diameters smaller than 20 microns this refers to spheres having the same settling...
1972
Phosphates
Joann E. Welton
AAPG Special Volumes
...): (Jurassic) Depth of Sample: 10,538.5 feet Spherical clusters and elongate rods (F) of the authigenic rare-earth phosphate mineral, florencite: In Figure...
1984