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The AAPG/Datapages Combined Publications Database

Showing 1,767 Results. Searched 200,636 documents.

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Diagenesis of Pre-Quaternary Carbonates as Indicated by Tracer Studies

Jan Veizer

Journal of Sedimentary Research (SEPM)

... precipitated calcites for various diagenetic models. Light arrows show the path of compositional change caused by diagenetic elimination of metastable phases...

1977

The Sauk-Tippecanoe Megasequence Boundary in an Interior Structural Corridor (Ottawa Embayment) of the Great American Carbonate Bank

George R. Dix

AAPG Special Volumes

...). Elimination of this western restriction occurred by the Late Ordovician.In the Ottawa embayment, the Beekmantown Group consists of Lower to Middle...

2012

California Oil-Field Waters: Part VI. Oil-Field Waters

Joseph Jensen

AAPG Special Volumes

..., but the problem connected with their elimination has not been difficult. The waters of the oil zone show that circulating ground waters must have entered...

1934

Vadose, Phreatic, and Marine Diagenesis of Pleistocene-Holocene Carbonates in a Borehole: Mediterranean Coast of Israel

Laura G. Buchbinder, Gerald M. Friedman

Journal of Sedimentary Research (SEPM)

... were found not to proceed in a pattern of progressive elimination of metastable minerals and trace elements with increasing depth. Intervals...

1980

Relative Alteration of Microcline and Sodic Plagioclase in Semi-arid and Humid Climates

W. Calvin James, Greg H. Mack, Lee J. Suttner

Journal of Sedimentary Research (SEPM)

... only twinned feldspars were utilized in this study. Untwinned feldspars constituted less than 10 percent of the grains; consequently, elimination...

1981

Chemical Diagenesis of a Multicomponent Carbonate System -2: Stable Isotopes

Uwe Brand , Jan Veizer

Journal of Sedimentary Research (SEPM)

... of this discrepancy. This elimination procedure suggests that a change in the 18O/16O ratio of sea water (Factor 7) is the likely cause. Separation of the total...

1981

Importance of Deep Permeable Disposal Formations in Location of a Large Nuclear-Fuel Reprocessing Plant

Wallace de Laguna

AAPG Special Volumes

... described in this volume, have been selected carefully by experienced professional geologists familiar with the areas. The elimination of unfavorable areas...

1968

Carbonate Diagnetic Facies in the Upper Pennsylvanian Dennis Formation in Iowa, Missouri, and Kansas

L. Bruce Railsback

Journal of Sedimentary Research (SEPM)

... that are associated with spar-filled voids may have resulted from the elimination of remaining void space after precipitation of void-filling calcite and dolomite...

1984

"Glauconite" Pellets: Their Mineral Nature and Applications to Stratigraphic Interpretations

John F. Burst

AAPG Bulletin

..., pattern 3, is made on the observation of swelling clay properties and the virtual elimination of high-angle reflections on the X-ray diffractogram...

1958

Primary Factors in Biostratigraphy

Harry E. Wheeler

AAPG Bulletin

... to be most useful as a biostratigraphic unit if defined with the elimination of the indefinite and confusing assemblage, and essentially following...

1958

Cambrian Phoscrete Profiles, Coated Grains, and Microbial Processes in Phosphogenesis: Georgina Basin, Australia

Peter N. Southgate

Journal of Sedimentary Research (SEPM)

... substrate. Diagenesis in the substrate results in the elimination of primary structures, producing a coated to vaguely pelleted texture. Micritic phosphate...

1986

Organic Matter Metabolizability and Calcium Carbonate Dissolution in Nearshore Marine Muds

Christopher M. Reaves

Journal of Sedimentary Research (SEPM)

... of labile organic matter, the organic content of the sediment increases and the diversity of the benthic fauna is diminished by the elimination of infaunal...

1986

Mineralogical Forms of Silica and their Sequence of Formation in Silcretes

Medard Thiry, Georges Millot

Journal of Sedimentary Research (SEPM)

... present in the opal inhibited crystallization of more ordered silica phases. Elimination of the impurity cations is a prerequisite for transformation...

1987

Experimental Leaching of Volcanic Glass: Implications For Evaluation of Glassy Volcanic Rocks as Sources of Uranium

Robert A. Zielinski

AAPG Special Volumes

... are particularly useful in the latter case because they allow elimination of consideration of source rocks that are too young. In some cases the geologic record...

1981

Upper Mississippian-Lower Pennsylvanian Stratigraphy of Central Montana and Williston Basin

Ronald P. Willis

AAPG Bulletin

... to scavengers, or to constant reworking, abrasion, and consequent elimination of organisms. The F:C ratio (the proximate grade with the larger weight per...

1959

Exploration and Development of Hydrocarbons from Low-Permeability Chalks--an Example from the Upper Cretaceous Niobrara Formation, Rocky Mountain Region

Richard M. Pollastro, Peter A. Scholle

AAPG Special Volumes

... the of material from outside the system, and eventually can result in an almost complete elimination of porosity in limestone sections. The relationship...

1986

Stratigraphic Record of Transgressing Seas in Light of Sedimentation on Atlantic Coast of New Jersey

A. G. Fischer

AAPG Bulletin

...--diagenetically altered, with elimination of aragonitic shells--is being mixed with the Recent fauna of the open shore and adjacent bottoms. How much...

1961

Factors Controlling Permeability Variation in Sandstones of the Garn Formation in Trestakk Field, Norwegian Continental Shelf

S.N. Ehrenberg , T. Boassen

Journal of Sedimentary Research (SEPM)

... eliminated; the results were similar except that 19 is now the most significant variable. Successive elimination of I3 through I13 gave similar results...

1993

Seismic Exploration for Stratigraphic Traps: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation

Milton B. Dobrin

AAPG Special Volumes

... otherwise obscure subtle features (such as cycle terminations that provide a key to depositional mechanisms). By the elimination of scattered energy...

1977

Structural Analysis, and Geometrical Prediction for Change of Form with Depth, of Some Arabian Plains-Type Folds

W. Sugden

AAPG Bulletin

... these the four constants C, K, F, and G may be determined by the usual method of elimination. Hence a practical equation is derived which fits perfectly...

1962

A Statistical Approach to Source Determination of Lithic and Fe Oxide Grains: An Example from the Alpha Ridge, Arctic Ocean

Dennis A. Darby, Jens F. Bischof

Journal of Sedimentary Research (SEPM)

... is close to more than one source group in lithic percentages. All of these approaches, even elimination of quartz and carbonate, show that the source groups...

1996

Cenozoic Planktonic Foraminiferal Zonation and Basinal

Orville L. Bandy

AAPG Bulletin

... a marked shoaling with the progressive elimination of deeper--water facies in time and upsection. Pleistocene beds are considered to be those containing...

1963

Structural Geology of Central Northern Egan Range, Nevada

Lee A. Woodward

AAPG Bulletin

... faults cut strata of Precambrian through Permian age, and predominantly have thrust younger over older rocks with tectonic elimination of intervening...

1964

Geologic Quantification: Description ^rarr Numbers ^rarr Success Ratio

Irving T. Schwade

AAPG Bulletin

... to the entire industry. Clearly, elimination of 1 dry hole for every 8 drilled is a significant reduction in per-barrel finding costs; furthermore...

1967

Geologic Success and Economic Failure

George C. Hardin, Jr. , Karl Mygdal

AAPG Bulletin

... that elimination or errors resulting from the slight differences in di count factors is not justifiable. MEASURING ECONOMIC SUCCESS It is usually easy...

1968

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