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The AAPG/Datapages Combined Publications Database

Showing 17,701 Results. Searched 200,693 documents.

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The Effects of Selective Sorting on Factor Analyses of Heavy-mineral Assemblages

Paul D. Komar, Karen E. Clemens , Zhenlin Li, Shyuer-Ming Shih

Journal of Sedimentary Research (SEPM)

... of Klovan and Imbrie (1971) with the extension of Klovan and Miesch (1976). The derived Verimax factors are diagramed in Figure 1. Ninety-eight percent...

1989

Sandstone Classification: Relation to Composition and Texture

John Bokman

Journal of Sedimentary Research (SEPM)

...). The relative importance of these three factors is generally difficult to assess. Clay must be considered a textural rather than a compositional property...

1955

Percussion Marks on Quartz Grains

Donald H. Campbell

Journal of Sedimentary Research (SEPM)

... crescents oriented parallel to the "c" crystallographic axis. Therefore, crystallographic factors controlling percussion mark orientation might be negligible...

1963

Rock Properties Computed from Random Pore Size Distribution

A. W. Talash, Paul B. Crawford

Journal of Sedimentary Research (SEPM)

.... For example, Burdine, Gournay and Reichertz (3) reported a permeability of 20 md and a porosity of 14.3 percent for pore radii ranging from 0 to 20...

1965

Oil-Gas Prospects of Non-Traditional Reservoirs in Lower Carboniferous Sediments of Aral-Ustyurt Area

A. Ye. Abetov, S. T. Khusanov, D. D. Orudzheva, P. U. Akhmedov, B. S. Rakhmatov

Petroleum Geology: A Digest of Russian Literature

... gamma activity, low temperatures, and good porosity and pemeability. See table 1 and figure 1. Porosity from cores is up to 7.67 percent, and that from...

2004

Dolomite Abundance and Stratigraphic Age: Constraints on Rates and Mechanisms of Phanerozoic Dolostone Formation: PERSPECTIVES

R. Kevin Given, Bruce H. Wilkinson

Journal of Sedimentary Research (SEPM)

... dolomite abundances from Vinogradov and Ronov (1956). D) North American dolomite abundances from Schmoker et al. (1985). Percent dolomite values for Figure...

1987

Some Systematic Variations in the Chemical Composition of Gases of Oil and Gas-Condensate Fields of the Apsheron Peninsula

F. G. Dadashev

Petroleum Geology: A Digest of Russian Literature

...) and gas-condensate fields (Zyrya, Karadag). Table 1 lists average values of the percent content of methane, the total of its homologs, and CO2...

1964

Geology and Diagenetic History of Overpressured Sandstone Reservoirs, Venture Gas Field, Offshore Nova Scotia, Canada (1)

LUBOMIR F. JANSA and VICTOR HUGO NOGUERA URREA

AAPG Bulletin

... of hydrocarbons and other fluids expelled during shale diagenesis resulting in pressure build up. The preservation of up to 32 percent porosity under 500-1000...

1990

Influence of Source Rock Type, Thermal Maturity, and Migration on Composition and Distribution of Natural Gases, Uinta Basin, Utah

Dudley D. Rice, Thomas D. Fouch, Ronald C. Johnson

Utah Geological Association

... in the Uinta Basin. Gases in group A are characterized by wetness (C2+) values between about 5 and 9 percent, methane 13C values greater than −40...

1992

Petrology and Diagenetic Effects of Lithic Sandstones Paleocene and Eocene Umpqua Formation Southwest Oregon

Lary K. Burns, Frank G. Ethridge

Special Publications of SEPM

... member which has minimum thickness of 825 meters 2 700 feet Formation a are constitute about 4 percent of the member sandstone and siltstone about...

1979

Delineating the Major Depositional Environments in Northern Port Phillip Bay, Victoria

Albert G. Link

Journal of Sedimentary Research (SEPM)

... to be two important factors controlling the distributions (fig. 14) of the eight species. Other distributional factors such as nutrient supply...

1967

Geology of the Nuhn Uranium Ore Body, Jackson Group, South Texas Uranium District

Richard P. McCulloh, Charles Roberts

South Texas Geological Society Special Publications

... (0.03 percent U3O8) mineralization by core assay. Ore lies at depths of 0 to 50 ft. in masses 2 to 20 ft. thick. Ore grades (0.03 to 0.30 percent...

1986

Geology of the Nuhn Uranium Ore Body, Jackson Group, South Texas Uranium District

Richard P. McCulloh, Charles T. Roberts

Bulletin of South Texas Geological Society

... 2 to 20 ft (0.6 to 6.1 m) thick. Ore grades (0.03 to 0.30 percent U308) and disequilibrium (log conversion factors of 0.1 to greater than 50...

1983

GEOLOGY OF THE NORTHERN PART OF CHERRY CREEK METAMORPHIC ROCKS, MADISON CO., MONTANA

WILLARD D. TOMPSON

Montana Geological Society

... this locality was found to contain 93 percent dolomite, 6 percent calcite, and 1 percent other minerals. Kyanite Schists...

1960

Deposition of the Woodbine-Eagleford Sandstones, Aggieland Field, Brazos County, Texas

Joseph R. DeDominic

GCAGS Transactions

... 2.5 to 22 percent. The two facies play a major role in controlling reservoir properties and, in turn, production. The lowermost clast facies in the #1...

1988

A Zircon-Tourmaline-Rutile Maturity Index and the Interdependence of the Composition of Heavy Mineral Assemblages with the Gross Composition and Texture of Sandstones

John F. Hubert

Journal of Sedimentary Research (SEPM)

... classification of sedimentary rocks: Jour. Geology, v. 56, p. 130-165. KRYNINE, P. D., 1942b, Provenance versus mineral stability as a controlling...

1962

The American Upper Ordovician Standard. VIII. R-Mode Factor Analysis of Cincinnatian Limestones

Robert H. Osborne

Journal of Sedimentary Research (SEPM)

... percent of the total variance. The geologic interpretations of the factors in order of decreasing statistical significance are (1) mechanical energy...

1967

Determination of Calcite, Dolomite, Quartz and Clay Content of Carbonate Rocks

Frank E. Diebold, John Lemish, Carl L. Hiltrop

Journal of Sedimentary Research (SEPM)

..., determines the relative percent of the carbonate fraction that is calcite and dolomite by measuring the intensity ratios of the largest diffraction maxima...

1963

Comparison of Oil-Source Rock Correlation Data for Alaskan North Slope: Techniques, Results, and Conclusions: INTRODUCTORY PAPERS

G. E. Claypool, L. B. Magoon

AAPG Special Volumes

... time. Even though complete agreement on the geological factors that account for oil occurrence in northern Alaska has not been achieved...

1985

High Pressure-High Temperature Nitrogen Interaction with Crude Oil and Its Impact on Asphaltene Deposition in Nano Shale Pore Structure: An Experimental Study

Mukhtar Elturki, Abdulmohsin Imqam

Unconventional Resources Technology Conference (URTEC)

... the impact of different factors on asphaltene formation damage, asphaltene deposition may be avoided in future applications of nitrogen injection...

2020

History of the Utah Geological Association, 1985-1994

Ted Arnow

Utah Geological Association

... declined drastically to a low of 247 in 1987. The gradual increase after 1987 was due to several factors, among them: the movement into the Salt Lake...

1995

Analytical Procedures Applicable to Fine-grained Sedimentary Rocks

Robert L. O'Neil

Journal of Sedimentary Research (SEPM)

... others. The analysis of lignites and bituminous shales is complicated by several disturbing factors. Elements that are encountered in trace amounts...

1959

Secondary Porosity in Sandstones and Diagenesis of Adjacent Shales, Oligocene, South Texas

David A. McMahon

GCAGS Transactions

... and shale percent determined from the SP log of the Tenneco T. S. Slick No. 66, Hinde field. End_Page 208------------------------ and another has...

1989

Ground-Water Development in Utah and Effects on Ground-Water Levels and Chemical Quality

Joseph S. Gates

Utah Geological Association

... uses have changed: in 1964, 72 percent of withdrawals was for irrigation and 11 percent for public supply; whereas in 2002, 59 percent...

2004

Carbonate Sediments in the Capricorn Reef Complex, Great Barrier Reef, Australia

W. R. Maiklem

Journal of Sedimentary Research (SEPM)

... collected. Mud seldom exceeds 2 percent of any of the sediments but gravel does constitute a significant proportion of some. Gravel is common...

1970

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