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The AAPG/Datapages Combined Publications Database

Showing 1,206 Results. Searched 189,249 documents.

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Scanning Electron Micrographs of Quartz Sand Grains from Cold Environments Examined Using Fourier Shape Analysis

Julian A. Dowdeswell

Journal of Sedimentary Research (SEPM)

...Scanning Electron Micrographs of Quartz Sand Grains from Cold Environments Examined Using Fourier Shape Analysis Julian A. Dowdeswell 1982 Vol. 52...

1982

Abstracts: Fourier Transform Ion Cyclotron Resonance Mass Spectrometry … The Analytical Tool for Heavy Oil and Bitumen Characterization; #90173 (2015)

Thomas B. P. Oldenburg, Melisa Brown, Ben Hsieh, and Steve Larter

Search and Discovery.com

...Abstracts: Fourier Transform Ion Cyclotron Resonance Mass Spectrometry … The Analytical Tool for Heavy Oil and Bitumen Characterization; #90173 (2015...

2015

Fold Geometry Within Part of Michigan Basin, Michigan

E. H. Timothy Whitten , Walter A. Beckman, Jr.

AAPG Bulletin

..., 19 p. James, W. R., 1966b, The Fourier series model in map analysis: U.S. Office Naval Research (Geog. Branch) Task no. 388-078, Contr. no. 1228(36...

1969

Use of Computers by Geologists: Abstract

Daniel F. Merriam

Tulsa Geological Society

..., and cosine-theta) harmonic analysis (includes time series, Fourier and power-spectrum analysis) auto- and cross-association PCA (principal component...

1967

Sources and Nonsources of Beach Sand Along Southern Monterey Bay California--Fourier Shape Analysis

Gerald A. Porter, Robert Ehrlich, Robert H. Osborne, Rodney A. Combellick

Journal of Sedimentary Research (SEPM)

...Sources and Nonsources of Beach Sand Along Southern Monterey Bay California--Fourier Shape Analysis Gerald A. Porter, Robert Ehrlich, Robert H...

1979

The Origin of Shape Frequency Distributions and the Relationship Between Size and Shape

Robert Ehrlich, P. Jeffrey Brown , Jeffrey M. Yarus , Robert S. Przygocki

Journal of Sedimentary Research (SEPM)

... implication on contemporary shelf sedimentation--Fourier Grain Shape Analysis: Jour. Sed. Petrology, in press. EHRLICH, R., AND WEINBERG, B., 1970...

1980

Grain Shape Analysis--Application to Problems of Sediment Source and Transport: ABSTRACT

Jim Mazzullo

AAPG Bulletin

...Grain Shape Analysis--Application to Problems of Sediment Source and Transport: ABSTRACT Jim Mazzullo 1982 1433 1433 66 9. (September) The shapes...

1982

Petroleum Exploration--Real World Examples Using Microcomputers: ABSTRACT

R. Mark Maslyn

AAPG Bulletin

... of double Fourier series to model oil-productive paleotopography in the eastern Powder River basin of Wyoming. Geophysicists are more accustomed...

1982

Sources and Distribution of Late Pleistocene Sand, Northern Gulf of Mexico Shelf: ABSTRACT

J. M. Mazzullo, C. Bates, D. Reutter, K. Withers

AAPG Bulletin

... paleogeography and alluvial identification. Techniques used to determine the sources of sand are: the Fourier technique (which differentiated sands...

1985

Lateral Variability in Coals in Western North Slope, Alaska: ABSTRACT

J. S. Youtcheff, P. D. Rao, J. E. Smith

AAPG Bulletin

... and to a lesser extent by rank characterization. Changes in the coal structure and its low temperature ash were also studied by means of Fourier transform...

1985

ABSTRACT: Development of fold hinges in a quartz arenite at subgreenschist facies conditions; #90018 (2003)

Jennie Cook

Search and Discovery.com

... to differences in fold geometry. Fluid inclusions, solution geometry, and potentially the Fourier transform infrared spectroscopy (FTIR) will be used...

2003

ABSTRACT: Direct Hydrocarbon Indication Using Instantaneous Spectral Analysis; #90017 (2003)

John Castagna

Search and Discovery.com

... excellent time and frequency localization utilizing wavelet transforms to avoid windowing problems that complicate conventional Fourier analysis...

2003

Abstract: Antialiasing 5D Interpolation; #90187 (2014)

Stephen K. Chiu

Search and Discovery.com

..., Houston, USA Abstract Fourier-based minimum weighted norm interpolation (MWNI) has been widely used to regularize land seismic data...

2014

Abstract: Prestack Depth Migration with the Gabor Transform; #90211 (2015)

Yongwang Ma and Gary Margrave

Search and Discovery.com

...-interpolation (GPSPI) wavefield extrapolation using a Gabor, or windowed Fourier, transform to localize the wavefield. The key to an efficient algorithm...

2015

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

... migration, the temporal Fourier transform is applied to the input seismic data to transform to the frequency domain. Then the spatial Fourier...

Unknown

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

... migration, the temporal Fourier transform is applied to the input seismic data to transform to the frequency domain. Then the spatial Fourier...

Unknown

ABSTRACT: THE VARIATION OF ORGANIC MATTER IN THE WEATHERING OF COAL GANGUE AND PROCESS SOIL FORMING

Juan-juan Li, Yuegang Tang, Jintao Ma, Xiaole Shi

The Society for Organic Petrology (TSOP)

... analysis, Fourier transform infrared spectroscopy and cross-polarization with magic angle spinning 13 C nuclear magnetic resonance (CP-MAS 13C NMR...

2006

The Effects of Fluvial Abrasion on the Shapes of Quartz Sand Grains

Mark Peterson , Jim Mazzullo

GCAGS Transactions

... series inclosed form (Ehrlich and Weinberg, 1970). In a Fourier analysis, the digitized shape is partitioned into a series of 23 standard shape...

1987

Abstract: Quantitative Paleobathymetry Using Geochemistry and Shape Analysis of Benthic Foraminifera, Offshore Gulf of Mexico

Douglas F. Williams , Anthony C. Gary , Nancy Healy-Williams

GCAGS Transactions

... foraminifera using fourier series analysis have shown that many taxa exhibit shape changes which are also correlatable to known environmental variables...

1988

Grain Size-Frequency Distributions from Thin-Section Data: NOTES

N. H. Gray

Journal of Sedimentary Research (SEPM)

... Crofts, N.Y. 549 p. STOKES, A. R., 1948. A numerical Fourier-analysis method for the correction of widths and shapes of lines on X-ray powder photographs...

1969

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