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The AAPG/Datapages Combined Publications Database

Showing 6,038 Results. Searched 200,357 documents.

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Mineralogy of some Hawaiian Coastal and Marine Carbonates: ABSTRACT

Pow-Foong Fan

AAPG Bulletin

... mineral assemblages was determined by X-ray diffraction analyses to correlate the mineralogy, the sources, and the depositional environments. Beaches...

1972

Nonskeletal Carbonates from Baffin Bay, Texas: ABSTRACT

J. S. Kier

AAPG Bulletin

..., Texas, and 1 piston core was taken from an adjacent blue-green algal mat lagoon. The cores ranged in length from 85 to 670 cm. X-ray diffraction...

1972

Marine Diagenesis of Carbonate Sediment, Bonaire, Netherlands Antilles: ABSTRACT

D. F. Sibley, R. C. Murray

AAPG Bulletin

... micritization of the high-Mg calcite of the encrusting coralline algae. Electron microprobe and X-ray diffraction analysis of these coatings...

1972

Chertification Phenomena in Antarctic and Pacific Deep-Sea Sediments--a Scanning Electron Microscope and X-ray Diffraction Study: ABSTRACT

F. M. Weaver, S. W. Wise

AAPG Bulletin

...Chertification Phenomena in Antarctic and Pacific Deep-Sea Sediments--a Scanning Electron Microscope and X-ray Diffraction Study: ABSTRACT F. M...

1972

Chemical Coefficients for Iron, Manganese, Lead, Zinc, and Copper in River Water and Suspended Load, and Mineralogic Composition of Suspended Load of Selected Kansas River Systems: ABSTRACT

E. E. Angino

AAPG Bulletin

... relation between trace element content and season in most Kansas streams. X-ray diffraction study of the mineralogic content of the suspended load...

1973

Practical Application of Remote Sensing to Petroleum and Mineral Exploration: ABSTRACT

Norman H. Foster

AAPG Bulletin

... been useful in limestone-dolomite studies. X-ray diffraction patterns long have been used in mineral identification. In exploration for radioactive...

1973

Lateral Variations of Clay Minerals in Deltaic Sediments of Colville and Adjacent Rivers, North Slope, Alaska: ABSTRACT

A. S. Naidu, T. C. Mowatt

AAPG Bulletin

... diffraction. In almost all samples illite is the predominant clay mineral; smectite, chlorite, and kaolinite are present in minor amounts. In the Colville...

1973

Ultramorphology of Carbonate and Silicate Phases Associated With Deep-Sea Chert: ABSTRACT

Fred W. Weaver, Sherwood W. Wise

AAPG Bulletin

...) Deep-sea diagenesis resulting in chert-nodule formation has been studied by scanning electron microscopy, light microscopy, X-ray diffraction...

1973

Salt Deposition in North Arm, Great Salt Lake, Utah: ABSTRACT

Jonathan H. Goodwin

AAPG Bulletin

... in the north arm since the causeway was completed 13 years ago; a rate of 150 million tons per year. X-ray diffraction analysis of more than 150 samples...

1973

Epigenetic Alunite Pisolites Formed by Natural Gases in Western Merced County, California: ABSTRACT

Nikola P. Prokopovich, Luvern L. Resler

AAPG Bulletin

... the Pleistocene Corcoran Clay Member. X-ray diffraction of the sandstone cement yielded abundant alunite. Data collected during studies of iron sulfide...

1973

Occurrence and Alteration of Clay Minerals in Caribbean Sea: ABSTRACT

C. M. Johnson, T. R. McKee, A. H. Bouma

AAPG Bulletin

... vertical and horizontal trends in clay mineralogy are examined in cores from the southwestern and central Caribbean. X-ray diffraction, differential...

1973

Pyritization in Shells of Living Bivalves: ABSTRACT

George R. Clark, Richard A. Lutz

AAPG Bulletin

... identified iron and sulfur as the principal components of this material. Preliminary X-ray diffraction studies on mechanical preparations of the outermost...

1979

Variations of Morphology and Sediment Transport Within Crenulate-Bay Beaches: ABSTRACT

Kenneth Finkelstein

AAPG Bulletin

...-refraction, diffraction, and reflection patterns which helped to determine transport directions. Results indicate: (1) Grain size coarsens toward...

1979

Microscopic Distribution of Uranium in Oakville Sandstone, South Texas: ABSTRACT

Edward C. Jonas, Omer I. Ece

AAPG Bulletin

... not possible to identify any ura ium-bearing mineral by X-ray diffraction. This suggests that uranium may be held in the sandstone as an amorphous oxide...

1979

Diagenetic Alteration in Eocene Alluvial-Plain Deposits, Sierra Nevada Foothills, California: ABSTRACT

James I. Maynard

AAPG Bulletin

... of thin sections and X-ray diffraction patterns reveals that mica, amphibole, and feldspar in cobbles of various compositions are replaced predominantly...

1979

Compositional Variations in Fabric-Element-Based Lithotype Classification for Devonian Shales: ABSTRACT

David S. Klanderman, Michael E. Hohn

AAPG Bulletin

..., gamma-ray log response, silt (by thin-section point counts), quartz, illite, pyrite, and 14 angstrom clays quantified relatively by X-ray diffraction...

1979

Chemical Differentiation of Temperate and Tropical Limestone-Derived Soils: ABSTRACT

W. C. Isphording

AAPG Bulletin

... samples, certain trace elements were determined as well (Ba, Zn, Sc, La, Ce, Eu, Lu, Rb, Hf, Cr, and Co). X-ray diffraction analyses were also carried...

1979

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

Kenneth A. Lipstreuer, Colin Barker

AAPG Bulletin

.... X-ray diffraction indicated the presence of quartz, feldspars, calcite, dolomite, mica, kaolinite, illite, and montmorillonite in the sediments...

1979

X-Ray Mineralogy of Upper Freeport Coal: ABSTRACT

F. T. Dulong, C. B. Cecil, R. W. Stanton

AAPG Bulletin

... correlation coefficients (non-parametric) were determined on a data matrix which consisted of the X-ray diffraction data, the major oxide...

1980

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

... diffraction methods to determine changes in a mineralogy with depth. Quartz is present in all samples and averages 15 wt. %. Above 7,800 ft (2,377 m...

1980

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