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The AAPG/Datapages Combined Publications Database

Showing 47,083 Results. Searched 200,630 documents.

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Scaled Experimental Models of Extension: Dry Sand vs. Wet Clay

Martha Oliver Withjack, Roy W. Schlische, and Alissa A. Henza

Houston Geological Society Bulletin

.... Little folding occurs in the sand models, but folds are common in the clay models. Introduction For more than seventy-five years, geologists have...

2007

Antidunes and Traction-Carpet Deposits in Deep-Water Channel Sandstones, Cretaceous, British Columbia, Canada

Koji Yagishita

Journal of Sedimentary Research (SEPM)

... together with the common presence of antidunes suggest that each succession was the product of one sedimentation event without decrease in stream power...

1994

The Future of Applied Sedimentary Geology: PERSPECTIVES

Wolfgang Schlager

Journal of Sedimentary Research (SEPM)

...-Level Change: Studies in Geophysics: Washington D.C., National Academy Press. KENTER, J.A.M., 1990, Carbonate platform flanks: slope angle and sediment...

2000

Cretaceous Depositional Systems, Northern D–J (Chyenne) Basin: Examples from the Dakota Group and Laramie-Fox Hills Formations

John Dolson, Kenneth A. Nibbelink

Rocky Mountain Section (SEPM)

... depositional systems and processes common to the Cretaceous of the Rocky Mountain region. The field guide is divided into two separate papers, day 1 (Dakota...

1985

Fractures in sandstone reservoirs with ultra-low permeability: A case study of the Upper Triassic Yanchang Formation in the Ordos Basin, China

Zeng Lianbo, Li Xiang-Yang

AAPG Bulletin

... with an ultra-low permeability. High-angle tectonic fractures and diagenetic fractures, such as near-horizontal bedding fractures, intragranular fractures...

2009

Facies Sequences and the Evolution of Fluvial Sedimentation in the Castlegate Sandstone, Price Canyon, Utah

Bruce J. Pfaff

Rocky Mountain Section (SEPM)

... continuous; (2) low-angle truncations are less common; (3) internal trough crossbedding and climbing ripples are less abundant; (4) mudchips...

1985

Deformation of the Upper Paleozoic Rocks at Tanjung Gelang, Pahang

L. S. Yap, B. K. Tan

Geological Society of Malaysia (GSM)

... of this eastern region and is very well exposed at several headlands and islands along the East Coast. A common and interesting feature of these rocks...

1980

Geology of Part of Southern Ouachitas, Arkansas

Bennie Walthall, Arthur L. Bowsher

Kansas Geological Society

... about three times thicker, 1,000 feet against 300 feet in the frontal belt, and containing much less chert and siliceous shale. Spiculites so common...

1966

Machine learning-based residual moveout picking

Farhad Bazargani, Wenjun Zhang, Anu Chandran, Zaifeng Liu, Harry Rynja

International Meeting for Applied Geoscience and Energy (IMAGE)

... and Production; ‡ Shell India Markets Pvt. Ltd. SUMMARY Residual moveout (RMO) in the depth migrated common image gathers provides a measure of error...

2022

The Greybull Sandstone Pool (Lower cretaceous) On the Elk Basin Thrust-Fold Complex, Wyoming and Montana

Donald S. Stone

Rocky Mountain Association of Geologists

... with cummulative production surpassing 500 million barrels, principally from a Paleozoic common pool. Abundant well data and seismic information have been utilized...

1983

Integration of Geological Data on Seismic Sections: GEOLOGICAL NOTES

L. F. Ivanhoe

AAPG Bulletin

.... Details of the geology along the line can be transferred to the seismic surface profile in the routine manner used for any geological section. The common...

1956

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

... and computing the rotation angle about each of the Z, X, and Y axes. Thereafter, common 45q azimuth traces from each of the horizontal X and Y component...

Unknown

Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad

Tony Johns

Search and Discovery.com

... and computing the rotation angle about each of the Z, X, and Y axes. Thereafter, common 45q azimuth traces from each of the horizontal X and Y component...

Unknown

Eolian Environment: Chapter 3

Edwin D. McKee, William C. Ward

AAPG Special Volumes

... ft in length and may be 60 or 70 ft in length -- are common features. Degrees of dip of foresets are mostly high angle, commonly 30° and, in some...

1983

THE PRINCIPLES OF WRENCH-FAULT TECTONICS OF MOODY AND HILL AS APPLIED TO NORTHERN SOUTH AMERICA

H. ALBERDING, H.P. LAUBSCHER, G.A. YOUNG

Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)

... to the extension of the Santa Marta fault. These folds trend N 15° W, which is the expected 15° angle for tertiary compressional forces due to reorientation...

1958

Underground Stresses

A. E. Scheidegger

CSPG Bulletin

..., the surface of fracture is parallel to the direction of the intermediate principal stress and inclined at an angle 45° (30° is a good average) toward...

1961

Internal Structure of the Southern Front Range, Colorado, From an Apatite Fission-Track Thermochronology Perspective

Shari A. Kelley, Charles E. Chapin

Rocky Mountain Association of Geologists

... of the South Platte River and Clear Creek. Generally, the data record up-to-the-west motion across the high-angle, NW-trending faults that are common along...

1997

Predicting the regional distribution of fracture networks using the distinct element numerical method

Bronwyn A. Camac, Suzanne P. Hunt

AAPG Bulletin

... and the associated costs to acquire such data. Many assumptions must be made in the absence of measured field data. A common problem when attempting...

2009

Interpretation of Seismic Reflection Data From the Central South Park Basin, Colorado

H. George Beggs

Rocky Mountain Association of Geologists

... a localized overpressured shale mass in the Pierre Shale or from a low angle overthrust splay off a large high angle fault east of this anomaly. c...

1977

Estuarine Channel Deposition Within the Lower Cretaceous Waseca Formation, Upper Mannville Group, Lloydminster Area, Saskatchewan

James A. MacEachern

CSPG Special Publications

... deposition of high angle, planar cross-stratified sand and shale-pebble conglomerates; 2) tidally influenced, point bar accretion of inclined...

1989

Primary Structures of a Seif Dune and Associated Deposits in Libya

Edwin D. Mckee, Gordon C. Tibbitts, Jr.

Journal of Sedimentary Research (SEPM)

..., and lag gravels, in addition to sand, giving the samples a double maxima in grade size analyses; it is poorly sorted and is comprised of low angle...

1964

Moody and Hill System of Wrench Fault Tectonics: DISCUSSION

John James Prucha

AAPG Bulletin

... pressure, CD, becomes associated with the second-order right- and left-handed wrench faults formed at the angle ß to CD, plus a second-order anticline...

1964

Abstract: Characterizing Dipping Fractures from P-wave Amplitude Versus Azimuth Studies; #90187 (2014)

Jon Downton and Hampson Russell

Search and Discovery.com

.... In particular I derive a linearized equation describing how the P-wave reflectivity varies as a function of angle of incidence and azimuth at an interface...

Unknown

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