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The AAPG/Datapages Combined Publications Database

Showing 1,537 Results. Searched 200,357 documents.

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Abstract: Automated Cuttings Analysis for Unconventional Applications

Don Hall

West Texas Geological Society

... quadrupole mass spectrometry, X-ray fluorescence analysis and diffuse-reflectance infrared Fourier-transform spectroscopy. All analyses are performed...

2018

ABSTRACT: THE APPLICATION OF FREQUENCY SPECTRAL ANALYSIS OF LOGGING CURVES ON SEDIMENTARY CYCLE STUDIES IN COAL-BEARING STRATA

Fengjie Li, Duoyun Wang

The Society for Organic Petrology (TSOP)

... cycles caused by climate changes. Key words: Logging curves; Milankovitch cycles; Fast fourier transform; Ordos basin; Yan’an Formation 114...

2006

Abstract: Infrared spectrum of an individual fossil pollen grain measured as an organic maturation index

T. Aizawa, T. Ohbuchi, Y. Ujiié

The Society for Organic Petrology (TSOP)

... Infrared spectra for individual fossil pollen grains were measured by means of Fourier transform infrared spectroscopy with infrared microscope (micro...

2008

ABSTRACT: Structural characteristics and molecular representations of bark liptobiolite of Permian from China

Ya’nan Guo, Yuegang Tang

The Society for Organic Petrology (TSOP)

... spectroscopy (NMR), high-resolution transmission electron microscopy (HRTEM) and Fourier transform infrared (FT-IR) spectroscopy were employed to analyze...

2012

ABSTRACT: Infrared Microspectroscopy: An Efficient Tool for Micro-Scale Characterization of Organic Matter

P. Landais and A. Rochdi

The Society for Organic Petrology (TSOP)

... analysis. Fourier transform infrared (FTIR) spectroscopy is a widely used technique in organic geochemistry which facilitates the functional analysis...

1990

Abstract: DMO and NMO as Applied in Seismic Data Processing

Jiunnyih Chen

Geological Society of Malaysia (GSM)

... by Fourier transform. offset continuation, single channel DMO ... etc. and the improvements of these techniques are widely recognized. But every technique...

1988

Abstract: Multiple and Noise Attenuation with Tau-P Seismic Data Processing

Leong Lap Sau, Ng Tong San

Geological Society of Malaysia (GSM)

... transfrom from the 2-D Fourier transform. Compared to conventional processing in the (x, t) plane, the T-p domain has several advantages. This study...

1990

Sources of Shoaling in Charleston Harbor, Fourier Grain Shape Analysis: REPLY

Robert Ehrlich, P. Jeffrey Brown

Journal of Sedimentary Research (SEPM)

...Sources of Shoaling in Charleston Harbor, Fourier Grain Shape Analysis: REPLY Robert Ehrlich, P. Jeffrey Brown 1979 Vol. 49 No. 2. (June), COLQUHOUN...

1979

Determination of Relative Provenance Contributions in Samples of Quartz Sand Using Q-mode Factor Analysis of Fourier Grain Shape Data

Carolyn Brauer Hudson, Robert Ehrlich

Journal of Sedimentary Research (SEPM)

...Determination of Relative Provenance Contributions in Samples of Quartz Sand Using Q-mode Factor Analysis of Fourier Grain Shape Data Carolyn Brauer...

1980

Examples of Optical Analysis and Filtering of Seismic Record Sections: ABSTRACT

J. A. Long

AAPG Bulletin

... to produce a diffraction pattern which is the two-dimensional Fourier transform of the section itself. By using suitable lenses, the diffraction...

1965

Tuscarora Sandstone (Silurian), Central Pennsylvania: Preliminary Quantitative Grain Shape Analyses of Cotter's (1982) Facies--Fluvial, Estuarine, Beach, and Marine(?) Shelf: ABSTRACT

James M. Parks, Robert A. Gallagher, Edward Cotter

AAPG Bulletin

... unmodified. Preliminary results comparing the Fourier Analysis (FA) methods of Ehrlich and colleagues (1970 to 1982) and Boon (1982) with the Rotat d...

1982

Relationship of Morphologic Variation and Environment in Recent Bolivina (Foraminiferida) from Northwestern Gulf of Mexico: ABSTRACT

Anthony C. Gary, Nancy Healy-Williams

AAPG Bulletin

..., was quantified by an automated video digitizer using closed-form Fourier series anal ses. Significant variations in shape outline components were tested...

1984

Morphostratigraphy of Foraminifera Via Automated Image Analysis: ABSTRACT

N. Healy-Williams, L. Robbins, R. Ehrlich

AAPG Bulletin

... specimens per hour. The subsequent analysis of shape changes is via closed-form Fourier se ies and multivariate statistical techniques. Through...

1984

COGS--Computer Oriented Geological Society: ABSTRACT

James A. Thomson

AAPG Bulletin

... statistics, interactive geophysical modeling, double-Fourier analysis, and telecommunications, among others. Future presentations will include expert systems...

1984

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