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The AAPG/Datapages Combined Publications Database

Showing 11,267 Results. Searched 200,636 documents.

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Geology and Uranium Deposits Along Northeastern Margin of McDermitt Caldera Complex, Southern Malheur County, Oregon: ABSTRACT

Andy B. Wallace, Michael W. Roper

AAPG Bulletin

... and not directly associated with mercury. Uranium concentrations occur along several horizons, including (1) geologic contacts, unconformities, and redox...

1981

Organic Geochemistry as a Geologic Tool: ABSTRACT

Colin Barker

AAPG Bulletin

... or unconformities commonly show clearly in vitrinite reflectance plots and it is possible to use this information to calculate the displacement of the fault...

1981

Formation of Diagenetic Alteration Zones by Leaking Reservoir Hydrocarbons over Three Oil Fields in Oklahoma: ABSTRACT

Jerry D. Ferguson

AAPG Bulletin

...-angle normal and reverse faults that cut reservoirs at depth and that intersect unconformities at the base of the Permian section. End_of_Article...

1981

The Time is Now for All Explorationists to Purposefully Search for Subtle Trap: ABSTRACT

Michel T. Halbouty

AAPG Bulletin

... or economic worth of the fields. Hidden trends may occur below unconformities, at undrilled depths in productive trends, and in relatively unexplored...

1981

Surface Geochemical Prospecting--Pro and Con: ABSTRACT

John M. Hunt

AAPG Bulletin

... in finding oil and gas. There is ample evidence that many petroleum accumulations leak hydrocarbons to the surface via faults, fractures, unconformities...

1981

Recognition of Shelf-Slope Break Along Tectonically Active, Ancient Continental Margins: ABSTRACT

Raymond V. Ingelsoll, Stephan A. Graham

AAPG Bulletin

... are expressed as unconformities separating shallow-marine/nonmarine and slope/basinal deposits. Alternatively, shelf and basinal deposits may be separated...

1981

Evolution of Sedimentary Systems During Mesozoic and Cenozoic in Southern Alaska--An Overview: ABSTRACT

Leslie B. Magoon, Charles E. Kirschner

AAPG Bulletin

... that are bounded by unconformities or faults. These six episodes or tectonic cycles, which are sequential but sometimes overlap, occurred during the: (1...

1981

Permian and Triassic Boundary of Southwestern Utah: ABSTRACT

R. Larell Nielson

AAPG Bulletin

..., southwestern Utah, is marked by a topographic unconformity associated with a number of minor unconformities. The Harrisburg Member, Kaibab Formation...

1981

Cyclic Deposition of Upper Tertiary Phosphorites of North Carolina Coastal Plain and Their Relation to Global Sea Level Curves: ABSTRACT

Stanley R. Riggs, Don W. Lewis, A. Kelly Scarborough

AAPG Bulletin

... features of sedimentation. (1) Three major erosional unconformities and five diastemic surfaces mark the boundaries between consecutive units. (2...

1981

Geochemical Correlation of Sedimentary Rocks: ABSTRACT

R. G. Smalley, R. L. Burtner

AAPG Bulletin

... record the locations of unconformities that are useful in correlation, whether or not they represent a major hiatus. This geochmical method has proved...

1981

Petroleum Potential of Shelikof Strait Based on Outcrops in Katmai National Monument, Alaska: ABSTRACT

Thomas N. Smith, George W. Petering

AAPG Bulletin

... of Valanginian and Albian rocks on this part of the Alaska Peninsula. Several unconformities were observed in the area, the most notable of which...

1981

Arkoma Basin Model: Middle Ordovician Through Early Devonian: ABSTRACT

Thomas W. Amsden

AAPG Bulletin

... the sediments are represented largely by a succession of thin but widespread carbonate units separated by diastems and unconformities. This period...

1981

Stratigraphy and Depositional History of Baltimore Canyon Trough, Mid-Atlantic OCS: ABSTRACT

Frederick Adinolfi, Jon Filer

AAPG Bulletin

... deposited across the continental shelf and slope and spilled into the ocean basin. Regional unconformities characterize the Turonian, the Tertiary...

1981

Deep-Water Petroleum Prospects, U.S. Atlantic Continental Margin: ABSTRACT

Roger V. Amato, Edvardas K. Simonis

AAPG Bulletin

..., and patch reefs. Prospects in the upper rise include east-dipping fan deposits, buried slump deposits, channeled unconformities, fault traps, buried sea...

1981

Gulf of Elat (Aqaba): Modern Analog to Mesozoic U.S. East Coast Shelf and Slope: ABSTRACT

Samuel A. Epstein, Gerald M. Friedman

AAPG Bulletin

... or enhanced secondary porosity and permeability. Such unconformities cutting the carbonate buildup have been identified, and suggest good potential...

1981

Neogene Seismic Stratigraphy and Depositional History of Lower Georgia Coast and Continental Shelf: ABSTRACT

Francis D. Foley, Vernon J. Henry

AAPG Bulletin

... on the shelf during late Miocene and Pliocene time. The Neogene stratigraphic section consists of a sequence of deposits, separated by unconformities...

1981

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