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The AAPG/Datapages Combined Publications Database

Showing 33,820 Results. Searched 196,763 documents.

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Calcification and Significance of Soil Filamentous Microorganisms in Quaternary Calcretes, Eastern Spain: ABSTRACT

Colin F. Klappa

AAPG Bulletin

... organomineral associations may be recognized. The mineral phase is low-magnesian calcite; its fabric occurs as micron-sized needles and rhombs...

1979

Depositional Sequence in Subarctic Sandy Beach Face, Central Labrador: ABSTRACT

Gerald E. Reinson, Peter S. Rosen

AAPG Bulletin

...-grained sand. The stratigraphic sequence is interpreted as follows. Unit 1 represents the normal berm accretionary phase of late summer 1977...

1979

Kef Anticline--Box Folding in Tunisian Atlas, Clue to Regional Tectonic Style: ABSTRACT

Arthur W. Snoke, Steven Schamel, Richard M. Karasek

AAPG Bulletin

... gliding in part localized within the Triassic evaporite-rich sequence, and (3) late-phase box folding of both the highly deformed Triassic assemblage...

1979

Sedimentology and Synergy of Deltaic Sandstone; Admire 650-Foot Sandstone, El Dorado Field, Kansas: ABSTRACT

Rod W. Tillman

AAPG Bulletin

.... The 51-acre (20 ha.) block being tested for enhanced recovery at El Dorado field was initially assumed to be a generally homogeneous reservoir. A Phase 1...

1979

Energy Dissipation over Salt Marsh and Its Effect on Estuarine Sediment Transport and Tidal Dynamics: ABSTRACT

Gary A. Zarillo

AAPG Bulletin

... grass in the marsh. An important result of this is the "storage" of water at high tide in the marsh creating a large phase lag in the ebb flow...

1979

Modeling of Devonian Shale Gas-Reservoir Performance: ABSTRACT

Fikri Kucuk, Walter Rose

AAPG Bulletin

... in the matrix of the shale both as a free-gas phase and as a sorbed-gas phase. Gas transport in Devonian shale reservoirs, according to the assumption adopted...

1979

Holocene Mollusk Distribution Patterns in Northern Gulf of Alaska: ABSTRACT

Carole S. Hickman, Elizabeth A. Nesbitt

AAPG Bulletin

...) the shallow to intermediate depth Cyclocardia-boreal turrid mud association (with a typical phase developing in offshore muds and a Clinocardium...

1980

Early Diagenetic Glauconitization of Feldspar Grains in a Middle Proterozoic Tidal-Flat Complex: ABSTRACT

Asru K. Chaudhuri

AAPG Bulletin

.... Petrographic studies reveal two phases of glauconitization. The major phase, affecting detrital grains, is early diagenetic and is almost...

1980

Paleotopography's Influence on Porosity Distribution in Lansing-Kansas City "E" Zone, Hitchcock County, Nebraska: ABSTRACT

Martin K. Dubois

AAPG Bulletin

... phase of a complex marine-nonmarine sedimentary cycle. The packstones and grainstones are best developed on ancient positive seafloor features (15...

1980

Atchafalaya Delta--Louisiana's New Prograding Coast: ABSTRACT

Ivor Ll. Van Heerden, Harry H. Roberts

AAPG Bulletin

... prompted silt and clay deposition in Atchafalaya Bay and initiated the subaqueous phase of delta building. This development stage continued until...

1980

Petrology and Geochemistry of Peralkaline Volcanics of Sierra Campana, Chihuahua, Mexico: ABSTRACT

Richard K. Spruill

AAPG Bulletin

...-rich basal unit that grades upward into a blue crystal-poor phase containing clumps (lapilli) of sanidine (Or40) plus quartz phenocrysts. Distinctive...

1981

Novel Approach to Eh-pH Diagrams and Their Relation to Uranium In-Situ Leaching: ABSTRACT

John E. Oddo, John A. S. Adams, M. B. Thompson

AAPG Bulletin

... (as in in-situ leaching), it seems more plausible to assume a solid phase in solution at various Eh-pH conditions and allow the aqueous species the freedom...

1981

Recognition of Sand Body Depositional Environments: Limitations of Fourier Analysis and New Approach to Grain-Shape Analysis: ABSTRACT

James M. Parks

AAPG Bulletin

... phase angles. Two types of errors can occur: (1) dissimilar shapes can produce similar sets of amplitudes, and (2) similar (but not identical) shapes...

1981

Eustatic Control of Distribution of Lower Upper Cretaceous Coal Beds in Utah: Application in Coal Exploration: ABSTRACT

Thomas A. Ryer

AAPG Bulletin

... cycle. Rocks deposited during the transgressive phase of the cycle generally contain only thin beds of high-ash and high-sulfur coal that are of little...

1981

Isotope Geochemistry of Calcite and Clay Minerals in Volcanogenic Rocks, Great Valley Sequence, Northern California: Implications for Organic Diagenesis: ABSTRACT

Robert K. Suchecki

AAPG Bulletin

... and conversion of smect te to a 10A clay-mineral phase. Theoretical considerations indicate that a shallow burial phase of predominantly pore-filling...

1981

Paleogeographic Setting and Depositional Environments of Santa Margarita Formation, Ventura County, California: ABSTRACT

Devin R. Thor

AAPG Bulletin

... the transgressive phase. Increased rate of sedimentation produced a seaward progradational sequence or regressive phase. Rocks that represent...

1981

Transitional Desmoinesian to Missourian Cyclic Deposits on Opposite Shores of Arkoma Seaway: ABSTRACT

Allan P. Bennison

AAPG Bulletin

... thin and developed near tops and bottoms of shale sequences. Seaway deposits are much more variable. High sea-level phase is characterized...

1981

Barra Nova Salt Domes Province, Espirito Santo Basin, Offshore Brazil: ABSTRACT

P. T. Araripe, M. Saito, S. Shimabukuro, C. H. R. Cunha, R. O. Kehle

AAPG Bulletin

..., they reached the extrusion/collapsing phase which extended to the Holocene with the salt domes being dissolved on the present sea floor. One...

1982

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