Sediment Texture and Transport Studies in an Intertidal Environment: A Progress Report

Robert W. Dalrymple

Atlantic Geology

... is plotted (Fig. 3). In general, those points which plot more than one standard deviation above the line (amplitude too high for the wavelength...

Navigation Data Collection, Processing, and Display

W. Clinton Steele, Kaye L. Kinoshita, Andrew J. Stevenson

Circum Pacific Council Publications

...) standard deviation of latitude determination less than 0.005 min., and (4) standard deviation of longitude determina- 26 STEELE, KINOSHITA, STEVENSON...

Applying Financial Portfolio Theory To The Analysis of Producing Properties

R. A. Edwards and T. A. Hewett

Houston Geological Society Bulletin

..., or standard deviation of return, can be considered a measure of economic risk). When multiple risky assets are held within a portfolio, it can be expected...

Roundness and Shape of Marine Gravels from Urk (Netherlands), a Comparison of Several Methods of Investigation

TJ. H. van Andel, A. J. Wiggers, G. Maarleveld

Journal of Sedimentary Research (SEPM)

... and standard deviation of the F distribution in each S-class have been plotted against the mid-point of the S-class. This method is not entirely correct...

A Comparison of Two Methods for Converting Grain Counts to Weight Percent Composition

R. C. Kellagher, Francis J. Flanagan

Journal of Sedimentary Research (SEPM)

...--quartz--has the largest standard deviation, that is, considerable variation exists in the particle sizes of the quartz as shown in figure 1...

Geothermal resource assessment of the Clarke Lake Gas Field, Fort Nelson, British Columbia

Warren Walsh

CSPG Bulletin

... kJ; standard deviation 3.2 × 1014 kJ). Using binary geothermal technology, this thermal energy can be used to generate electricity. It is estimated...

Transformation of Weight--and Number--Frequencies for Phi-Normal Size Distributions: NOTES

Basanta K. SAHU

Journal of Sedimentary Research (SEPM)

... of the distribution changes but the standard deviation (or variance) remains the same. An equation is derived which relates the means of the distributions...

Dispersal and Petrology of the Silurian Val Brillant and Robitaille Sandstones, Appalachians, Quebec

Jean Lajoie

Journal of Sedimentary Research (SEPM)

... in table 2, where- x represents the arithmetic mean, g the "graphic" standard deviation, and I the inclusive standard deviation. The arithmetic mean of 60...

Parameters Influencing Porosity in Sandstones: A Model for Sandstone Porosity Prediction: REPLY

M. Scherer

AAPG Bulletin

... were the most important parameters. In fact, not including depth in the regression only marginally increased the standard deviation of the estimate...

Gas Production Composition Determined With Direct Quadrupole Mass Spectrometer (DQMS) While Drilling, #40836 (2011)

Scott Lashbrook, Bruce Warren

Search and Discovery.com

... and reliable. Hydrocarbon basis BTU calculated from DQMS data for the 8 wells had an average percent error of 1.162 and a standard deviation of 1.021 from...

Laramide Deformation and Flexural Effects in the Upper Cretaceous: A Basin in Transition; #30578 (2018)

Kurt W. Rudolph, Joel P. Saylor

Search and Discovery.com

... profile are retained (Figure 3). These are used to calculate the mean and standard deviation of load height, load width, load density, and EET...

X-Ray Computed Tomography of Macroscale Variability in Sediment Physical Properties, Offshore Louisiana

Thomas H. Orsi, Aubrey L. Anderson

GCAGS Transactions

... continental shelf. A CV value was determined for each ROI by the expression, CV = 100(SD/X), where SD is the CT standard deviation and x is the CT mean...

Textural and Shape Variation in the Berea Sandstone of Ohio

Fred Foreman, Harry L. Thomsen

Journal of Sedimentary Research (SEPM)

... were developed and from these the arithmetic mean, M, the standard deviation, , and the skewness, SK, were obtained. This is a standard method which...

Multi-realization seismic data processing with deep variational preconditioners

Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... features: more specifically, the number of channels is first reduced to 2, with the first being the mean and the second being the standard deviation...

Fast, Fully Probabilistic, Nonlinear Inversion of Seismic Attributes for Petrophysical Parameters; #120047 (2012)

Andrew Curtis, Mohammad Shahraeeni, and Gabriel Chao

Search and Discovery.com

... a posteriori PDF of the model parameters is a reasonable estimate of log values. Figure 3 shows the maximum a posteriori (MAP) and the standard deviation...

Gemini: A fully operational broadband source for model building and imaging

Carsten Udengaard, David Brookes, Hector Flores

International Meeting for Applied Geoscience and Energy (IMAGE)

... standard marine air gun arrays. The Gemini source is a novel solution to generating more low frequency energy for FWI, while maintaining sufficiently...

A New Method for Measuring the Bulk Volume of Small Rock Samples for Determinations of Porosity and Mass Accumulation Rates: RESEARCH METHOD PAPER

Marilyn S. Yeager, Niall C. Slowey

Journal of Sedimentary Research (SEPM)

... samples, as represented by the percent standard deviation of many replicate determinations, was typically about ± 3% (where the standard deviation...

A Method for the Size Analysis of Sand on a Number Frequency Basis

Arthur W. Marschner

Journal of Sedimentary Research (SEPM)

... the relation, SX = Sx/n where SX is the standard deviation of the random sample or the random error, SX is the standard deviation...

Genesis of an Upper Cretaceous Offshore Bar Near Arlington, Texas

Charles F. Dodge

Journal of Sedimentary Research (SEPM)

..., instead, the use of the Phi Standard Deviation method for obtaining a sorting measurement. Table 2 gives the range of standard deviation in units...

Plotting Equation for Gaussian Percentiles and a Spreadsheet Program for Generating Probability Plots: REPLY

James H. Balsillie, Joseph F. Donoghue, Kenji M. Butler, Jennifer L. Koch

Journal of Sedimentary Research (SEPM)

... height of record (i.e., = 0.4 Havg, where is the standard deviation of record). It was impressed upon the co-worker that for one-tenth of the cost...

Abstract: High Precision Determination of Metal Elements in Crude Oils by ICP-MS/ICP-OES by Weihang Yang, Yongjun Gao, and John F. Casey; #90190 (2014)

Search and Discovery.com

Probabilistic seismic interpolation with the implicit prior of a deep denoiser

Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... to the standard deviation of the additive noise. Given such noisy observations, the minimum mean squared error estimate of the clean signal can be equivalently...

Porosity of the Miami Limestone (Late Pleistocene), Lower Florida Keys

James W. Schmoker, Timothy C. Hester

Journal of Sedimentary Research (SEPM)

... with complete mineralogical stabilization could be on the order of 15-20 percent. Porosity is narrowly distributed. The standard deviation of porosity...

Use of Textural Parameters in Evaluating the Genesis of the Berne Conglomerate (Mississippian) in Central Ohio

Kennard B. Bork

Journal of Sedimentary Research (SEPM)

... to inclusive graphic standard deviation (I.G. Stan. Dev.; vI) was considered by Moiola and Weiser (1968, p. 50) to be the best tool for differentiating beach...

Determination of Borehole Qualitiy Based on World Stress Map: A Case Study of Well-110

Septian Prahastudhi, Julian Saputro, Ayi Syaeful Bahri, Yuda Faisal Yushendri

Indonesian Petroleum Association

... is the length of borehole breakout or DIF with orientation θi*. Then the standard deviation is: R  (C 2  S 2 )1 / 2 Resistivity image logging tools...