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The AAPG/Datapages Combined Publications Database

Showing 6,048 Results. Searched 200,616 documents.

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Stevensite Oolites from the Green River Formation of Central Utah

Rodney Tettenhorst, George E. Moore, Jr.

Journal of Sedimentary Research (SEPM)

... in the upper part of the lower member, but persist into the upper member. Similar aphanitic brown material that gives the same x-ray diffraction pattern also...

1978

Quantitative Mineralogy of Sandstones by X-Ray Diffractometry and Normative Analysis

Colin R. Ward , John C. Taylor , David R. Cohen

Journal of Sedimentary Research (SEPM)

... (1999), No. 5. (September), Quantitative X-ray diffraction, normative calculation, and whole-rock chemical analysis have been compared for Permo...

1999

Finite Difference Modelling: Part IV

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... Francesco Maria Grimaldi (1618–1663), left, was the first to describe the diffraction of light. The Grimaldi crater on the Moon is named after him...

2019

Super-virtual interferometry for noise elimination on vertical seismic profiling (VSP)

Yicheng Zhou, Yang Cui, Sherif Hanafy

International Meeting for Applied Geoscience and Energy (IMAGE)

... information, with the goal of improving the signal-to-noise ratio (SNR). The key idea of SVI involves generating diffraction gathers by convolving different...

2024

Comparison of Clay Mineralogy of Late Quaternary Back-Barrier and Barrier Sediments, South Texas Coast

C. Wm. Keighin, R. M. Flores

GCAGS Transactions

.... Petrol., v. 42, p. 85-88. Pollastro, R.M., 1982, A recommended procedure for the preparation of oriented clay-mineral specimens for x-ray diffraction...

1984

Authigenic Brookite in Cretaceous Gallup Sandstone, Gallup, New Mexico

Ming-Shan Sun, John Eliot Allen

Journal of Sedimentary Research (SEPM)

... of the brookite-bearing sandstone have been identified optically by immersion and by X-ray powder diffraction methods, differential thermal analysis...

1957

Predicting the Permeability of Unconsolidated Sediments From Grain Size Measurements

Eve S. Sprunt, Ron E. Gilliland, Mary L. Barrett

GCAGS Transactions

... (1993), Laser diffraction particle size measurements are shown to be superior to porosity-permeability correlations in predicting the permeability...

1993

Quantification in Clay Mineral Studies of Sediments and Sedimentary Rocks

J. W. Pierce, F. R. Siegel

Journal of Sedimentary Research (SEPM)

... Structures of Clay Minerals, Mineralogical Society, London. 544 p. CLARK, G. L. AND REYNOLDS, D. H., 1935, An X-ray diffraction method for the estimation...

1969

Direct Diffractometric Quantitative Analysis of Synthetic Clay Mineral Mixtures with Molybdenite as Orientation-Indicator: NOTES

Joost Quakernaat

Journal of Sedimentary Research (SEPM)

... absorption in quantitative diffraction analysis of powder mixtures: Anal. Chem. v. 20, p. 886-889. BERGIN, R., 1964, Quantitative diffractometric analysis...

1970

Silica Recrystallization in Petrified Wood

C. L. Stein

Journal of Sedimentary Research (SEPM)

... was examined by X-ray diffraction, and each sample was found to consist of one of the following: opal-A opal-CT or quartz. The correlation between...

1982

The Formation and Behaviour of Montmorillonite During the Use of Wet Forward Combustion in the Alberta Oil Sand Deposits

C. Perry, J. E. Gillott

CSPG Bulletin

... and sulphur: Pub. 7818. Gibbs, R. J., 1965, Error due to segregation in quantitative clay mineral x-ray diffraction mounting techniques: Am...

1979

The Effect of Heat-Treating Sedimented Mixed-Layer Illite-Smectite as Related to Quantitative Clay Mineral Determinations

G. S. Austin , R. K. Leininger

Journal of Sedimentary Research (SEPM)

.... Leininger 1976 Vol. 46 No. 1. (March), The difference in intensities of the 10 A X-ray diffraction maxima of sedimented clay minerals after treatment...

1976

Mineral Profile of Wyoming’s Green River Formation –Oil Shales Sampled by Blacks Fork Core1

William A. Robb, John Ward Smith

Earth Science Bulletin (WGA)

... of Wyoming’s Green River Formation are presented as histogram plots with depth. Oil yields and X-ray diffraction peak heights of 17 minerals...

1976

A Time Migration Before Stack

Richard Cooper, Malcolm Hobson

Geological Society of Malaysia (GSM)

... and diffraction energy to its correct spatial and temporal origin. The application of a migration algorithm prior to estimation of velocity appears...

1991

Clay Minerals from the Ventura Basin, California

William Quaide

Journal of Sedimentary Research (SEPM)

... after deposition. JOHNS, W. D., GRIM, R. E., AND BRADLEY, W. F., 1954, Quantitative estimations of clay minerals by diffraction methods: Jour...

1957

Clay Minerals in Sediments from Sydney Harbour, Australia

R. E. Grim, F. C. Loughnan

Journal of Sedimentary Research (SEPM)

...., GRIM, R. E., AND BRADLEY, W. F., 1954, Quantitative estimations of clay minerals by diffraction methods: Jour. Sedimentary Petrology, v. 24, p...

1962

The Characteristics of Kasiro Shale and Its Implication to Oil Shale Identification at The Batang Asai, Sarolangun, Jambi

Abizar Rachman, Atep Beni, Hana Nur, Hanif Abiyuza, H. W. Utama

Indonesian Petroleum Association

... characteristic from microscopic aspect based on Petrography, SEM (Scanning Electron Magnetic) and XRD (XRay Diffraction) shows illite as main clay mineral...

2021

Opal, Zeolites, and Clays in an Eocene Neritic Bar Sand: NOTES

E. G. Wermund, R. J. Moiola

Journal of Sedimentary Research (SEPM)

... by diffraction methods: Jour. Sedimentary Petrology, vol. 24, p. 242-251. KINTNER, E. B., AND DIAMOND, S., 1956, A new method for preparation...

1966

Cristobalite and Clinoptilolite in Bentonite Beds of the Colville Group, Northern Alaska: NOTES

R. C. Reynolds, Jr., D. M. Anderson

Journal of Sedimentary Research (SEPM)

... by optical and X-ray diffraction methods. Portions of each were crushed and ground in an agate mortar. The powdered materials were packed into a welled sample...

1967

Clay Mineralogy of the Old Red Sandstone (Devonian) of Scotland

M. J. Wilson

Journal of Sedimentary Research (SEPM)

... samples of Old Red Sandstone sedimentary and volcanic rocks from various parts of Scotland has been investigated by X-ray diffraction, differential...

1971

Characterizing Quartz Phases in the Meramec and Osage of the STACK Region Using X-Ray Diffraction

Haleigh Howe, Brittany Hollon, Rose Schulze, Mark King, Nathan Rasmussen

Unconventional Resources Technology Conference (URTEC)

...Characterizing Quartz Phases in the Meramec and Osage of the STACK Region Using X-Ray Diffraction Haleigh Howe, Brittany Hollon, Rose Schulze, Mark...

2019

Clay Mineral Diagenesis in Atoka (Pennsylvanian) Sandstones, Crawford County, Arkansas

D. M. Triplehorn

Journal of Sedimentary Research (SEPM)

... elements (B, Ni, Ga, V, Cr, Mn, and Co) were determined by emission spectrography. Mineralogy Standard X-ray diffraction techniques were used...

1970

Silicates: Clays: PART 2

Joann E. Welton

AAPG Special Volumes

... but not unique to smectite (see Figure D for a close-up of the webby morphology). Precise identification of the clay is based on X-ray diffraction (XRD...

1984

Separation of siderite from calcite by differential reaction with dilute ethanoic acid: mineralogical and isotopic (δ13C, δ18O) effects

Stephen F. Crowley, Thomas Hughes

Journal of Sedimentary Research (SEPM)

...-scattered electron microscopy, wave-length dispersive electron probe microanalysis, and X-ray diffraction. Estimates of the “bulk average” geochemical...

2024

Geologic Framework, Cenozoic History, and Modern Processes of Sedimentation on the North Carolina Continental Margin

Albert C. Hine, Stanley R. Riggs

Special Publications of SEPM

... multiples. Source of of by an acoustic pulse to form multiples. diffraction or single point reflections is also illusdiffraction or single point...

1986

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