Sand Dispersal in Eastern and Southern Lake Ontario

Robert G. Sutton, Thomas L. Lewis, Donald L. Woodrow

Journal of Sedimentary Research (SEPM)

... direction. Mean size and percent of fine-grained heavy minerals decrease whereas sorting and kurtosis values increase in direction of transport. Skewness...

A Reconnaissance Survey of the Cover Sands in the Republic of Botswana

Thomas A. Baillieul

Journal of Sedimentary Research (SEPM)

..., standard deviation, skewness, and kurtosis by Folk's graphical method. Later, a Hewlett-Packard 9810A calculator became available and a statistical...

A Grain Size Spectra Map

John J. Dowling

Journal of Sedimentary Research (SEPM)

... such as mean, median, skewness or kurtosis. Each of these, in its own way, characterizes some aspect of the grain size distribution. Two grain size...

Utilization of Programmable Calculators in Sedimentology: METHOD PAPER

R. C. Lindholm

Journal of Sedimentary Research (SEPM)

... relationships between moment measures and the other parameters are as follows: (a) mean = m1 (b) standard deviation = <>m2 (c) skewness = [m3]/[m23/2] (d...

"Ruasa": An Automated Rapid Sediment Analyser: METHOD PAPER

John B. Anderson, Dennis D. Kurtz

Journal of Sedimentary Research (SEPM)

... percents 3) The mean grain size, standard deviation, skewness and kurtosis 4) Digital graphic displays of frequency and cumulative size distribution...

On Using the Log-Hyperbolic Distribution to Describe the Textural Characteristics of Eolian Sediments: DISCUSSION

C. Christian Christiansen, Daniel Hartmann

Journal of Sedimentary Research (SEPM)

... and Christiansen (1986). It is evident from Figure 2 that and qualitatively express the skewness and the kurtosis of the hyperbolic distribution...

Preface

AAPG Special Volumes

..., would involve subsidiary problems such as causes of sorting, skewness, and color. They would also require the designing of suitable instruments...

Graded Bedding in Recent Black Sea Turbidites: A Textural Approach: Sediments

Dan C. Jipa

AAPG Special Volumes

... variation (Figs. 6B, 10B), occurs. Based on the verbal classes of Folk and Ward (1957), the skewness is very positive (between 0.3 and 0.9...

Weibull vs. Lognormal Distributions for Fluvial Gravels

G.M. Kondolf , A. Adhikari

Journal of Sedimentary Research (SEPM)

... only, and thus they fail to capture important features of many distributions (Inman 1952). The geometric mean, sorting index, skewness, and kurtosis...

Geological Controls on Formation Water Salinity Distribution Southeastern Greater Natural Buttes Field, Uinta Basin, Utah; #20213 (2013)

Tuba Evsan, Matthew J. Pranter, and Marc Connolly

Search and Discovery.com

... 40 40 20 0.5 23 22 50 Skewness on the right 20 4 GAPI Units Bonanza Basement Fault NBU 10S 18E 18 13 16 17 (Movable & Residual...

Maximum-Likelihood-Estimation Stacking; #41575 (2015)

Stewart Trickett

Search and Discovery.com

... Meeting, SEG, Expanded Abstracts, p. 16931696. Joanes, D.N., and C.A. Gill, 1998, Comparing measures of sample skewness and kurtosis: The Statistician, v...

Importance of Probability Distributions on Volumetric Characterizations in Resource Assessment; #42577 (2022)

David M. Advocate and Kenneth C. Hood

Search and Discovery.com

... be truncated, the bounded Beta distribution is more intuitive and can reasonably represent the appropriate level of skewness. We discourage using...

Quaternary Terraces and Shorelines of the Panhandle Florida Region

Joseph F. Donoghue, William F. Tanner

Special Publications of SEPM

... is much break 46 of Brenneman gentler Data are from 1957 Se skewness of 0 194 not a ma appears to be an old beach kurtosis of 3 264 moderate...

Petrology of Domengine Formation (Eocene), at Potrero Hills and Rio Vista, California

Thomas W. Todd , William A. Monroe

Journal of Sedimentary Research (SEPM)

... probability paper, and the parameters, mean, standard deviation, skewness, and normalized kurtosis (Folk and Ward, 1957) were computed for each sample. Data...

Stratigraphy and Petrology of the Morrison Formation (Jurassic) of the Canon City, Colorado, Area

Lawrence L. Brady

Journal of Sedimentary Research (SEPM)

... determination of 2nd phi skewness and phi kurtosis from thin section alone. Of these eight sandstone samples, pipette analyses were made for two (B-52-64R, B...

Sedimentology of Apollo 11 and 12 Lunar Soils

John F. Lindsay

Journal of Sedimentary Research (SEPM)

... at the 0.05 level (t.05= 2.101 < 3.935, d.f. = 19). Sorting improves with decreasing median grain size. The graphic skewness of grain-size...

Shelf Sedimentation: An Example from the Jurassic of Britain

David K. Davies

Journal of Sedimentary Research (SEPM)

... structures, bio urbation, grain size, sorting, skewness, and petrography. The bar complex is 150 ft thick, and is transitional downward and southward...

Sedimentology of the Rocktown Channel Sandstone, Upper Part of the Dakota Formation (Cretaceous), Central Kansas

Charles T. Siemers

Journal of Sedimentary Research (SEPM)

... deviation (sorting) in phi units; skewness and kurtosis parameters are dimensionless. FIG. 12. Bedding characteristics and grain size parameters...

Late Quaternary Geomorphic Evolution of the Colorado River, Inner Texas Coastal Plain

R. Michael Looney , Victor R. Baker

GCAGS Transactions

... are the most poorly sorted alluvial deposits. Modal analysis revealed that all samples, excluding 6B and 4, are multimodal. Skewness was measured using...

Clast-Contact Conglomerates in Submarine Canyon Fill: Possible Subaqueous Sieve Deposits, Carmelo Formation (Paleocene), Point Lobos, California

M. Shannon FitzGerald, D. S. Gorsline

Pacific Section SEPM

... to calculate textural statistics, A simple arithmetic analysis was used and the data plotted in XY graphs of various parameters. The kurtosis and skewness plot...

Bottom Sediments of Georges Bank

Roland L. Wigley

Journal of Sedimentary Research (SEPM)

... diameter, coefficient of sorting, kurtosis, and two measures of skewness. In addition to these parameters, organic content, shell content, color...

Contribution of Salinas River Sand to the Beaches of Monterey Bay, California, During the 1978 Flood Period: Fourier Grain-Shape Analysis

Ross A. Clark , Robert H. Osborne

Journal of Sedimentary Research (SEPM)

... analysis of the grain-size distributions was performed. Mean grain size, phi standard deviation, skewness, and kurtosis were calculated using the STATICS...

Sediment-routing controls on sandstone bulk petrographic composition and texture across an ancient shelf: Example from Cretaceous Western Interior Basin, Utah and Colorado, U.S.A.

Janifar H. Lupin,, Gary J. Hampson

Journal of Sedimentary Research (SEPM)

... from a catchment(s) supplying slightly more feldspathic sand. Thin-section measurements of mean grain size, sorting, skewness, and ratio of minimum...

Processes and Rates of Recent (Holocene) Basin Filling in an Active Transform Margin: Santa Monica Basin, California Continental Borderland

D. N. Malouta , D. S. Gorsline, S. E. Thornton

Journal of Sedimentary Research (SEPM)

... and skewness. Changes in sand and silt content are related to the pattern of the prevailing surface and near-bottom water circulation...

Sedimentological, Petrophysical, and Seismic Characterization of an Upper Jurassic Shoreface-Dominated Shelf Margin (the Boulonnais, Northern France)

H. Braaksma, J.N. Proust, J.A.M. Kenter, G.G. Drijkoningen, N. Filippidou

Journal of Sedimentary Research (SEPM)

..., and depositional environment. A) Cross-plot of sorting (the spread of the sizes around the average) against mean grain size over which the skewness...