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The AAPG/Datapages Combined Publications Database
Showing 800 Results. Searched 196,121 documents.
Fluvial Architecture of Reverse Directional Channels in the Irrawaddy Sandstone, Salin Basin, Central Myanmar; #50727 (2012)
Naing Maw Than
Search and Discovery.com
... stratigraphically upward. Most of the sands are poorly to moderately sorted. The skewness values of sediments are positive and vary from 0.69 to 7.18, while...
2012
Natural Fracture Intensity Variation in Carbonate Reservoirs as Constraint in Static Conceptual Fracture Modeling; #42484 (2019)
R. A. Nelson, J. Lonnee
Search and Discovery.com
... statistical representations for the FI data, documenting average, maximum, minimum, standard deviation, and skewness in the data. An alternative...
2019
Marginal Sediments of Mississippi Delta
Francis P. Shepard
AAPG Bulletin
... diameter, sorting (deviation), and skewness. As part of a more general study, Inman and Chamberlain prepared a map of the Mississippi Delta area, using 239...
1956
Empirical Determination of Physical Controls on Megafaunal Footprint Formation Through Neoichnological Experiments with Elephants
Brian F. Platt, Stephen T. Hasiotis, Daniel R. Hirmas
PALAIOS
... in the Soils and Geomorphology Laboratory. Mean (Mw), standard deviation (sw), skewness (Sw), and kurtosis (Kw) of particle sizes in W-units were calculated...
2012
Intense Naticid Drilling Predation on Turritelline Gastropods from Below the K-T Boundary at Rajahmundry, India.
Sumanta Mallick, Subhendu Bardhan, Shubhabrata Paul, Subham Mukherjee, Shiladri S. Das
PALAIOS
.... 12B) is strongly skewed (skewness 5 1.01) toward smaller individuals (,1 cm) and closely tracks the size distribution of OBD (skewness 5 0.93) (Fig...
2013
Criteria for Recognizing Ancient Barrier Coastllnes
Kendell A. Dickinson, Henry L. Berryhill Jr., Charles W. Holmes
Special Publications of SEPM
... No differences in frosting between beach and No differences in skewness and kurtosis were noted in the Gulf Coast barrier island or environ dune sands were...
1972
Stromatoporoid Paleoecology of the Southeast Margin of the Miette Carbonate Complex Jasper Park, Alberta
David Kobluk
CSPG Bulletin
... in Table 1, were computed for each distribution: 1. Coefficient of variation V 2. Standard deviation SD 3. Skewness SK...
1975
Controls on grain-size variability in the Holocene fill of the Indus Submarine Canyon
Yuting Li, Peter D. Clift
Journal of Sedimentary Research (SEPM)
... of the raw data (Table S1) included univariate grain-size parameters and associated moment statistics, such as kurtosis and skewness (i.e., the asymmetry...
2023
The Mudline: Variability of its Position Relative to Shelfbreak
Daniel Jean Stanley, Sunit K. Addy, E. William Behrens
Special Publications of SEPM
... from tran in the northern Gulf of Mexico are depicted in Figure 3 A discussion of each type and consid Examples SKEWNESS 20 45 eration of possible...
1983
Petrogenetic Classification of Carbonate Rocks
Thomas W. Todd
Journal of Sedimentary Research (SEPM)
... distribution Pore skewness will indicate whether polymodality is dominated by fine, less desirable voids, or large, more continuous pores. Values...
1966
Grain-Size Distribution and Reservoir-Rock Characteristics
John C. Griffiths
AAPG Bulletin
... discontinuous (size) distributions. However, within poorly sorted, low porosity mixtures, higher porosities occur with slight skewness towards the fine...
1952
Authigenic Clays in Sandstones: Recognition and Influence on Reservoir Properties and Paleoenvironmental Analysis
Michael D. Wilson, Edward D. Pittman
Journal of Sedimentary Research (SEPM)
... of sandstones (cumulative curve shape, moment measures of size, sorting, skewness, etc.) are often used as paleoenvironmental indicators...
1977
Sediment Dispersal Patterns in Part of a Deformed Mesozoic Back-Arc Basin on South Georgia, South Atlantic
D. I. M. Macdonald , P. W. G. Tanner
Journal of Sedimentary Research (SEPM)
... skewness and kurtosis. These minor statistics have not been included as the results were not significant, for reasons discussed below. Mean slump-fold...
1983
Cretaceous Sedimentation in Upper Mississippi Embayment
Wayne Arthur Pryor
AAPG Bulletin
... distribution curves were median diameter, decile deviation, coefficient of sorting, coefficient of geometric quartile skewness, and quartile kurtosis...
1960
Inferring Maximum Geostrophic Current Velocities in the Norwegian-Greenland Sea from Settling-Velocity Measurements of Sediment Surface Samples: Methods, Application, and Results
Klaus H. Michels
Journal of Sedimentary Research (SEPM)
...-velocity distribution of the low-energy depositional type displays a positive skewness in the settling-velocity distribution whereas that of the erosional...
2000
Petrology of Pierce Canyon Redbeds, Delaware Basin, Texas and New Mexico
D. N. Miller, Jr.
AAPG Bulletin
... and 8, based on parameters defined by Folk (1954) as follows: [EQUATION] Sorting (Inclusive Graphic Standard Deviation) OI [EQUATION] Skewness...
1966
Growth and Dolomitization of Silurian Reefs, St. Clair County, Michigan
Richard L. Jodry
AAPG Bulletin
... that, although the porosity is low, some coarse skewness of pore throats has developed, attributable to the slightly larger dolomite crystals. Much...
1969
Anomalously high porosity and permeability in deeply buried sandstone reservoirs: Origin and predictability
Salman Bloch, Robert H. Lander, Linda Bonnell
AAPG Bulletin
... skewness). If the porosity distribution is clearly skewed to the right (tailing off to the right), it may be due to a skewed distribution of the sample...
2002
Characterization of the natural fracture system of the Eagle Ford Formation (Val Verde County, Texas)
Raphaël Gottardi, and Shanna L. Mason
AAPG Bulletin
... the perspective of skewness, kurtosis, and variability: Quality and Reliability Engineering International, v. 28, no. 3, p. 249–264, doi...
2018
Rock fabric controls on pore evolution and porosity–permeability trends in oolitic grainstone reservoirs and reservoir analogs
Hamilton M. Goodner, Eugene C. Rankey, Chi Zhang, and W. Lynn Watney
AAPG Bulletin
... extraction of graphic mean size (“grain size”), inclusive graphic standard deviation (“sorting”), inclusive graphic skewness (“skewness”), and graphic...
2020
Interpreting Permeability from Mercury Injection Capillary Pressure Data; #41660 (2015)
Alton A. Brown
Search and Discovery.com
... incremental distribution, typically with negative (fine) skewness when plotted against logarithm of throat diameter (Figures 7, 8). (2) Conformance is Hg...
2015
The Structure of the Salt Deposit at Pugwash, Nova Scotia
Robert Evans
Atlantic Geology
... , p . 502-515 D U A N E , D . B . , 1964, Significance of skewness in recent sediments, w e s t e r n Pamlico S o u n d , N o r t h Carolina: J o u r...
1965
Analysis of Reservoir Properties of Faulted and Fractured Eolian Thrust-Belt Reservoirs (OFR-529) 2008
Dustin Keele, James Evans
Utah Geological Survey
... values well 30-02 separated out by facies Dune Facies Apron Facies Mean Standard Error Median Mode Standard Deviation Sample Variance Kurtosis Skewness...
2008
Characteristics of the Braided Stream Depositional Environment with Examples from the South Canadian River, Texas
L. G. Kessler, II
Earth Science Bulletin (WGA)
... downstream trends in such parameters as mean grain diameter, sorting, skewness, and kurtosis. This lack of change was attributed to the lack of erosional...
1971
Sedimentological and Reservoir Characteristics of the Upper Sespe Formation at Sockeye Field, Offshore California
Phil J. Rarey
Special Publications of SEPM
... in fines (positively skewed) (Fig. 11c). A plot of sorting versus skewness shows that the upper Sespe Formation sandstones have a grain size...
1990