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The AAPG/Datapages Combined Publications Database

Showing 20,641 Results. Searched 200,630 documents.

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Geophysical Logs and Marine Zones as Useful Coal-Exploration Tools in Southern West Virginia: ABSTRACT

Bascombe M. Blake, Jr., Alan F. Keiser, Robert S. Reppert

AAPG Bulletin

...-ray logs, density logs, core logs, and marine zones aids in regional correlation problems in the stratigraphically complex, coal-bearing End_Page 901...

1981

Mineralogy and Petrology of Texaco's Hobson Uranium Deposit, Karnes County, Texas: ABSTRACT

Harry M. Dahl, Harold A. Palmer, Christie A. Callender

AAPG Bulletin

... compared with gamma ray equivalent uranium values indicate that the uranium has been dissolved from the updip side and precipitated on the downdip side...

1981

Induced Spectroscopy: A Mineralogy-Lithology Well Log: ABSTRACT

Charles Flaum, Gordon Pirie

AAPG Bulletin

..., specifically with the induced gamma-ray tool (GST), measures the relative yields of gamma rays resulting from interactions of neutrons with different...

1981

Petrology and Diagenesis of Early Miocene Deep-Sea Fan Deposits near Point Arena, California: ABSTRACT

Joann E. Welton

AAPG Bulletin

... dispersive X-ray, X-ray diffraction, nuclear magnetic resonance, electron microprobe, and thin section analysis. Rock types examined include medium to very...

1981

Combined Natural Gamma Ray Spectral/Litho-Density Measurements Applied to Clay Mineral Identification: ABSTRACT

J. A. Quirein, J. S. Gardner, J. T. Watson

AAPG Bulletin

...Combined Natural Gamma Ray Spectral/Litho-Density Measurements Applied to Clay Mineral Identification: ABSTRACT J. A. Quirein, J. S. Gardner, J...

1982

Diagenetic Calcite Varieties from Travertines of Central Italy: ABSTRACT

Robert L. Folk, Henry S. Chafetz

AAPG Bulletin

... with apparent basal parting planes. Primarily inorganic sediment includes ray-crystals and pisolites. Ray-crystals can be up to 1 m (39 in.) long...

1983

Tracing the Sole of a Thrust Through Thick and Thin of Salina Group (Upper Silurian): Decollement Tectonics of Southern Tier, New York: ABSTRACT

Katherine J. Beinkafner

AAPG Bulletin

... on gamma-ray logs, and is mapped along the Southern Tier of New York. The detachment surface is found at three progressively lower stratigraphic levels...

1983

Ferroan Carbonates Formed at Depth Require Porosity Well-Log Corrections: Hunton Group (Upper Ordovician to Lower Devonian), Deep Anadarko Basin, Oklahoma and Texas: ABSTRACT

Charles A. Sternbach, Gerald M. Friedman

AAPG Bulletin

... in the chemical compositions of dolomite (especially of iron). Bulk densities determined by measuring proportions of major minerals (X-ray diffraction...

1984

Experimental Determination of Smectite Hydration States Under Diagenetic Conditions: ABSTRACT

Virginia A. Colten

AAPG Bulletin

... and temperatures that simulate burial diagenetic conditions, has been determined by X-ray diffraction analysis. A heated high-pressure X-ray cell was used...

1984

Log-Derived Evaluation of Shaly Sandstone Reservoirs: ABSTRACT

Walter H. Fertl

AAPG Bulletin

... in the evaluation of localized conditions, they only provide guidelines. Recent developments in quantitative log-analysis techniques incorporate natural-gamma-ray...

1984

Sedimentology of Mudflow Deposits in Mississippi River Delta-Front Environment: ABSTRACT

Harry H. Roberts

AAPG Bulletin

...------------------------------ detailed x-ray radiography (for sediment structure) and x-ray diffraction (for clay mineralogy) analyses evaluated in conjunction...

1984

Examination of Lower Jurassic Mudrocks Using Backscattered Electron Microscopy: ABSTRACT

David Krinsley, Kenneth Pye

AAPG Bulletin

...-ray diffraction data (XRD), particularly with respect to the clay-sized (< 2 µm) fraction of mudrocks. Backscattered electron techniques (BSE...

1984

Post-Burn Mineralogic and Trace Element Relationships from an In-Situ Oil Shale Experimental Retort: ABSTRACT

Glenn M. Mason, Robert D. Giauque, Lowell K. Spackman

AAPG Bulletin

... partitioning resulting from a true in-situ burn of Green River oil shale under field conditions. Minerals were examined by x-ray diffraction and optical...

1984

Oriskany Sandstone Lithofacies, Paleoenvironment, and Fracture Porosity in Somerset County, Pennsylvania: ABSTRACT

R. A. Welsh, Jr.

AAPG Bulletin

... trace-fossil assemblages and coarsening-upward grain size trends indicative of vertically stacked marine bars. Correlation of gamma-ray logs from...

1984

Lithostratigraphy and Chronostratigraphy of Catskill-Pocono Delta, Upper Devonian-Lower Mississippian, Northern West Virginia: ABSTRACT

J. Scott Lewis, Alan C. Donaldson

AAPG Bulletin

... Formations) are poorly defined and understood. Correlation using base-lined (relative method) gamma-ray logs, supplemented by lithologic logs and outcrop...

1985

Cretaceous and Tertiary (Brookian) Depositional Style on Barrow Arch, North Slope, Alaska: ABSTRACT

T. S. Collett, K. J. Bird, C. M. Molenaar

AAPG Bulletin

..., high gamma-ray-reading shale (the gamma-ray zone or HRZ). Subsequent progradation from the southwest to the northeast deposited the characteristic...

1985

Subsurface Stratigraphy and Depositional History of Madison Limestone (Mississippian), Williston Basin: ABSTRACT

James A. Peterson

AAPG Bulletin

... cycles are correlated and mapped on the basis of shaly marker beds identified on gamma-ray-neutron or gamma-ray-sonic logs. The marker beds...

1985

Dolomites Formed Under Deep Burial Conditions: Hunton Group Carbonate Rocks (Upper Ordovician to Lower Devonian) in Deep Anadarko Basin of Oklahoma and Texas: ABSTRACT

G. M. Friedman, C. A. Sternbach

AAPG Bulletin

...) dissolved the nonreplaced calcite, thereby creating intercrystalline and moldic porosity. X-ray diffraction verifies a trend of higher dolomite...

1985

Identification of Source Rocks on Wireline Logs by Density/Resistivity and Sonic Transit Time/Resistivity Crossplot: Crossplots: DISCUSSION

Yasin N. Aljawadi

AAPG Bulletin

... (1984) investigated the possibility that source rocks might be recognizable from the available standard Schlumberger logs: gamma ray, sonic, density...

1986

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