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The AAPG/Datapages Combined Publications Database

Showing 5,807 Results. Searched 195,387 documents.

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An X-ray Technique for Distinguishing Between Detrital and Secondary Quartz in the Fine-grained Fraction of Sedimentary Rocks

Eric V. Eslinger , Lawrence M. Mayer , Thomas L. Durst, John Hower, Samuel M. Savin

Journal of Sedimentary Research (SEPM)

... or authigenic quartz on the basis of the relative intensities of the X-ray diffraction peaks from the (100) and (101) crystallographic planes...

1973

Magnesium in 19 Species of Eastern Canadian Holocene Foraminifera

Kenneth Hooper

Atlantic Geology

... FORAMINIFERA KENNETH HOOPER Ca,rleton University, Ottawa, Ontario, CANADA The tests of 18 benthonio and. one planktonic species of modern Foraminiferida from 8...

1978

Semi-Quantitative Clay Mineralogy in Subsurface Studies

Richard M. Procter

CSPG Bulletin

... determining relative scattering factors, by comparison of diffraction peaks from mixtures of the pure minerals. Using peak areas, they found...

1962

Examining Hydrated Minerals Using Optically Stimulated X-Ray Diffraction, an Inexpensive Modification of Traditional Diffractometers: RESEARCH METHODS PAPERS

Javier Garcia-Guinea , Rafael Abella , Sergio Sanchez-Moral , Raul Benito , Daniel Martin-Ramos

Journal of Sedimentary Research (SEPM)

... of high-temperature chambers that are used in X-ray diffraction (XRD) procedures stems from the need to use platinum strips and expensive refractory panels...

2000

Silicates: Zeolites

Joann E. Welton

AAPG Special Volumes

..., and Mg coming from the clay coatings. Identification here is based on comparison of the tabular morphology, X-ray diffraction (XRD), and EDX analysis...

1984

Fault Criteria

Francis F. Campbell

GCAGS Transactions

..., The significance of diffraction in the investigation of faults: Geophysics, v. 17, p. 843-858. Quarles, Miller, Jr., 1950, Fault interpretation from...

1965

Quartz Cement in Upper Jurassic Brora Formation Sandstone: What Electron Backscatter Diffraction Reveals about Microquartz Coatings

Sasha C. Haddad, Richard H. Worden, David Prior, Craig Smalley

Search and Discovery.com

... boundaries •Subgrain structure Subgrain •Degree of misorientation Electron backscatter diffraction • Map crystallographic orientation from polished...

Unknown

Cyclic-Steam-Induced Diagenesis in Potter Sand Midway-Sunset Field, California

Dawne A. Pennell, Robert A. Horton Jr.

Pacific Section of AAPG

.... The relative percentages of clays, as determined by quantitative x-ray diffraction, increased from unsteamed to steamed samples (Fig. 4). Changes...

2001

ABSTRACT: Petrographic study of core samples from J Reservoirs, southeast Malay Basin, Malaysia

Amita Mohd Ali, Hasnol Hady Ismail, Saira Bannu Baharuddin

Geological Society of Malaysia (GSM)

... involved deriving data from thin-section, scanning electron microscopy and X- Ray diffraction analyses, and these analyses were carried out as one...

2021

Early Diagenesis: Expansible Soil Clay-sea Water Reactions

Herman E. Roberson

Journal of Sedimentary Research (SEPM)

... diffraction maximum over a broad range of 2 because diffraction is being contributed from an interstratification of 10 A, 14 A, 17 A layers...

1974

ABSTRACT: Mineralogical changes of clay minerals in a coal seam due to contact metamorphism, Shuoli Mine, China

Xibo Wang, Yaofa Jiang

The Society for Organic Petrology (TSOP)

... in a tunnel excavation face from the Shuoli Mine (Fig. 1c) were examined by low temperature ashing and X-ray diffraction to investigate the influence...

2012

Introduction

Eric Eslinger, David Pevear

Special Publications of SEPM

... was unknown until the advent of X-ray diffraction In spite of recent advances, there is studies in the 1920's. no generally accepted definition...

1988

Abstract: Evaluating and Supplementing XRD Results with Elemental Data: Mineral Modelling Examples from the Duvernay Formation; #90224 (2015)

Gabriel L. Rotberg, Gemma V. Hildred, and Tim Pearce

Search and Discovery.com

.... This study will use examples from the Upper Devonian (Frasnian) Duvernay Formation of Alberta to demonstrate the use of a paired X-ray diffraction...

2015

Effect of Mica on Particle-Size Analyses Using the Laser Diffraction Technique: RESEARCH METHODS PAPERS

Shaun Hayton , Campbell S. Nelson , Brian D. Ricketts , Steve Cooke , Maurice W. Wedd

Journal of Sedimentary Research (SEPM)

...Effect of Mica on Particle-Size Analyses Using the Laser Diffraction Technique: RESEARCH METHODS PAPERS Shaun Hayton , Campbell S. Nelson , Brian D...

2001

Trenton Exploration and Wrenching Tectonics--Michigan Basin and Environs: ABSTRACT

C. E. Prouty

AAPG Bulletin

... the shear model. Analyses (x-ray diffraction) of numerous well samples from several producing fields show dolomite/calcite ratios of epigenetically formed...

1984

Nature of Authigenic Illites in Sandstone Reservoirs

Necip Guven, Wayne F. Hower, David K. Davies

Journal of Sedimentary Research (SEPM)

... diffraction patterns have been obtained from the -2 µm fraction of the air-dried slides before and after ethylene glycol saturation. Before the glycolation...

1980

Recent Dedolomitization and the Origin of the Rusty Crusts of Northumberland: DISCUSSION

Donald D. Runnells

Journal of Sedimentary Research (SEPM)

... procedure is not discussed in detail, it is likely that the percentages of calcite and ferroan dolomite are based on a standard curve made up from various...

1974

An Inexpensive Plate Holder for the Suction-On-Ceramic-Plate Method of Mounting Clay Minerals For Semi-quantitative Analysis

Richard W. Carlton

Journal of Sedimentary Research (SEPM)

... is described. The plate holder is made from one end of a radiator hose and clamp. By drilling a number of holes in a 6 mm aluminum plate which serves...

1975

Separation of Clay Minerals from Carbonate Rocks by Using Acid

Meredith E. Ostrom

Journal of Sedimentary Research (SEPM)

... slides. The X-ray diffraction curves obtained from these slides showed only slight evidence of the presence of clay minerals. The clays manifested...

1961

Moganite as an Indicator for Vanished Evaporites: A Testament Reborn?

Peter J. Heaney

Journal of Sedimentary Research (SEPM)

... the patterns for quartz and moganite are similar, the moganite diffraction pattern is distinguished from that of quartz by: (1) splitting of the dominant (101...

1995

Geochemistry of Small Lacustrine Delta, Great Salt Plains, Alfalfa County, Oklahoma: ABSTRACT

Kenneth A. Lipstreuer, Colin Barker

AAPG Bulletin

.... Although sediment is supplied solely by the river, organic matter may be derived from the land surface (and transported by the river) or derived End...

1979

Shale Mineralogy of General Crude Oil and Department of Energy 1 Pleasant Bayou Geopressured-Geothermal Test Well, Brazoria County, Texas: ABSTRACT

Robert L. Freed

AAPG Bulletin

... Robert L. Freed 1980 709 709 64 5. (May) Thirty-three shale samples, ranging in depth from 2,185 to 15,592 ft (666 to 4,752 m), were examined by X-ray...

1980

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