Carbonate Textures: Compaction and Deformation

AAPG Special Volumes

... insoluble residue shown cutting a crinoid fragment. Loss of a large volume of carbonate is apparent from the truncation of the crinoid. X.N. 0.38 mm...

Passive Margins: Submarine Canyons, Contourites, and Volcanics, Mozambique

D. Bradford Macurda, Jr.

AAPG Special Volumes

... inspection, a slump origin might be suspected. However, the upper-right-hand (southeast) side of the mound shows erosional truncation. Internally, it shows...

Estimating Potential for Small Fields in Mature Petroleum Province: Discussion (1)

J. H. SCHUENEMEYER , L. J. DREW , D. H. ROOT , and E. D. ATTANASI

AAPG Bulletin

... as revealed by a study of economic truncation: Mathematical Geology, v. 15, p. 145-161. End_Page 1761------------------------------ End_Page 1762...

Big Hill Field Jefferson County, Texas

Robert S. Dollison

GCAGS Transactions

...), the approximate location of this fault is apparent. The Hackberry sands increase in thickness approximately 10% across the fault. Fault "J" evidently...

Boscan Field, Western Venezuela: Case Histories

John A. F. Sutherland

AAPG Special Volumes

... and the truncation and facies change of upper Eocene and lower Oligocene sandstones. It was discovered following a conventional seismic survey which...

Mississippian Unconformities in Northern Alaska Related to Antler Tectonic Pulses: GEOLOGIC NOTES

F. A. Schoennagel

AAPG Bulletin

... Chesteran carbonate rocks of the Arctic Slope. Low-angle truncation occurs at the top of a dolomite zone in most of the deep Arctic Slope wells...

Preservation of Oil During Erosion of Reservoir Rocks

Geo. Edwin Dorsey

AAPG Bulletin

... unconformity which represents a time of erosion and truncation of the older oil-bearing beds; (2) the presence now of extremely large quantities...

Regional Unconformities of Flatlands

Frank A. Melton

AAPG Bulletin

... greatly to a clear understanding of verifiable geologic history. They are especially useful in studying the position, trend, and rates of truncation...

Summary of the Stratigraphy of the Minnelusa Formation, Powder River Basin, Wyoming

Donald I. Foster

Wyoming Geological Association

... of the facies relationships of each time-rock unit can solve some apparent complexities of the Pennsylvanian and Lower Permian strata of central...

Application of Geophysical Logging Data for Unification of Stratigraphic Sections

S. S. Itenberg

Petroleum Geology: A Digest of Russian Literature

.... They are distinguished by high values of apparent resistivity, negative SP anomalies, and characteristic maximums on the gamma log. The white formation...

Mississippian Sedimentation and Oil Fields in Southeastern Saskatchewan: Carboniferous

Ralph W. Edie

AAPG Special Volumes

... Saskatchewan. 2. Relatively rapid truncation (15-40 feet per mile) as compared with an average of approximately 5 feet per mile in southwestern...

Mississippian Sedimentation and Oil Fields in Southeastern Saskatchewan

Ralph W. Edie

AAPG Bulletin

... steep dips (40-60 feet per mile) as compared with dips of 10-20 feet per mile in much of southwestern Saskatchewan. 2. Relatively rapid truncation (15-40...

Sandstone-body dimensions in a lower coastal-plain depositional setting: Lower Williams Fork Formation, Coal Canyon, Piceance Basin, Colorado

Matthew J. Pranter, Rex D. Cole, Henrikus Panjaitan, Nicholas K. Sommer

AAPG Bulletin

..., and dimensions of single-story and multistory channel bodies and crevasse splays.The mean thickness and apparent width of the 688 measured sandstone...

Jurassic Unconformities, Chronostratigraphy, and Sea-Level Changes from Seismic Stratigraphy and Biostratigraphy

P. R. Vail, J. Hardenbol, R. G. Todd

AAPG Special Volumes

... to be related to rapid eustatic rises of sea level. Unconformity recognition is locally or regionally enh nced by periodic truncation of folded...

Eastward Shift of Deepwater Fan Axes during the Miocene in the Gulf of Mexico: Possible Causes and Models

John W. Snedden, William E. Galloway, Timothy L. Whiteaker, Patricia E. Ganey-Curry

GCAGS Journal

... has been previously recognized but not linked to this apparent deepwater submarine fan shift. Upper Miocene deepwater fan deposits on the western flank...

Recognition and Significance of Inherited Quartz Overgrowths in Quartz Arenites

Ivan D. Sanderson

Journal of Sedimentary Research (SEPM)

... between projection angles and equivalent apparent projection angles seen when a cut does not pass through a sphere's center. It was found...

High-Resolution Sequence Stratigraphy of the Upper Cretaceous Tocito Sandstone: The Relationship Between Incised Valleys and Hydrocarbon Accumulation, San Juan Basin, New Mexico

David C. Jennette, Clive R. Jones, John C. Van Wagoner, Jeff E. Larsen

AAPG Special Volumes

... (Tocito-1, Tocito-2, Tocito-3 and Tocito-4). Over their extent, each basal sequence boundary is marked by erosion and truncation of underlying strata...

Passive Margins: Erosion of the Southern Florida Escarpment

William Corso, Richard T. Buffler, and James A. Austin, Jr.

AAPG Special Volumes

... to be the most likely interpretation. DISCUSSION The erosional truncation of inferred Early Cretaceous toe-of-slope facies by the MCU, and apparent...

Habitat of Oil in the Canadian Portion of Williston Basin: North America

G. B. Darling , P. W. J. Wood

AAPG Special Volumes

... shelf areas of thin sediments, facies changes, and gentle sedimentary truncation. It is in these stable, almost structureless shelf areas that the bulk...

Tectonic History of the Uncompaghre Uplift

Donald S. Stone

Rocky Mountain Association of Geologists

... of the Uncompaghre, on the Douglas Creek arch and Seep Ridge antklinal nose, by southward truncation of all formations below the Shinarump Conglomerate...

Seismic Stratigraphy of the Tayrona Depression-Offshore Baja Guajira Basin, Colombia

C.E. Escalante

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... the unconformity, while erosional truncation, toplap and apparent truncation occur below the unconformity. In the Tayrona Depression, Baja Guajira Basin, eight...

Orientation Analysis of Trough Cross Stratification in Upper Cambrian Sandstones of Western Wisconsin

Peter C. Michelson, R. H. Dott, Jr.

Journal of Sedimentary Research (SEPM)

..., where Precambrian Baraboo Quartzite hills projected above sea level. Cambrian sandstones within 5 or 6 km of the old islands show apparent longshore...

THE OROGENIC HISTORY OF THE WILLISTON BASIN, SASKATCHEWAN

W. B. GALLUP, G. J. HAMILTON

Montana Geological Society

... profound effect on Mississippian deposition and while it is true that much of the thinning outward from the basin center is due to truncation...

Two New Methods of Paleocurrent Determination from Trough Cross-Stratification

Peter G. DeCelles, Richard P. Langford, Robert K. Schwartz

Journal of Sedimentary Research (SEPM)

... and the transverse-vertical plane causes an apparent widening of the trough base and asymmetric truncation of foreset laminae (Fig. 7). As long as the cut plane...

Cretaceous Stratigraphy and Structural Development of the Sabine Uplift Area, Texas and Louisiana

Walter H. Granata Jr.

Shreveport Geological Society

... took place in both the Texas and Louisiana basin areas, where no unconformity is apparent. The truncation which removed the Woodbine and Tuscaloosa...