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The AAPG/Datapages Combined Publications Database
Showing 3,040 Results. Searched 201,049 documents.
The Genesis of the Diamond Deposits of the West Kimberley, W.A.
C. B. Smith
Petroleum Exploration Society of Australia (PESA)
... of kimberlite from the mantle to the earth's surface, followed by quenching, is required to preserve diamonds intact at crustal levels without...
1984
Permeability, Porosity, and Shear-wave Anisotropy From Scaling of Open Fracture Populations
Randall Marrett
Rocky Mountain Association of Geologists
... in the subsurface if the fractures did not develop via a progressive crack-seal process. Values of e determined from 2-D samples of extension fracture...
1997
Experimental Study of Effect of Injection Waters on Cores from Citronelle Field, Mobile County, Alabama
Rona J. Donahoe, Linda E. Leard
AAPG Bulletin
... aggregates with many authigenic pore features and minerals intact. Disaggregation was performed to increase the mineral surface area in contact...
1989
Living On the Edge: Evaluating the Impact of Stress Factors On Animal–Sediment Interactions In Subenvironments of A Shelf-Margin Delta, the Mayaro Formation, Trinidad
Sudipta Dasgupta, Luis A. Buatois, M. Gabriela Mángano
Journal of Sedimentary Research (SEPM)
... beds. The top of the lower bed contains ball-and-pillow structures. D) In bedding-parallel view, intact fossilized leaves of flowering plants...
2016
The Pennsylvanian Pewamo Formation and Associated Haybridge Strata: Toward the Resolution of the Jurassic Ionia Red Bed Problem in the Michigan Basin, U.S.A.
Kathleen C. Benison, Jonathan P. Knapp, Joanne M. Dannenhoffer
Journal of Sedimentary Research (SEPM)
..., longitude 84.99596° W). A truck-mounted drill rig performed hollow stem augering and retrieved 2.5 inch diameter (6.3 cm) intact rock core from...
2011
The Utility of Isolated Crinoid Ossicles and Fragmentary Crinoid Remains in Taphonomic and Paleoenvironmental Analysis: An Example from the Upper Pennsylvanian of Oklahoma, United States
James R. Thomka, Daniel Mosher, Ronald D. Lewis, Roger K. Pabian
PALAIOS
...) immediately below the Main Crinoid Bed, (2) the lower and middle portion of the Main Crinoid Bed, (3) the top of the Main Crinoid Bed, (4) lower Bed 0, (5...
2012
The preservation of water-table caves at depth: Observations from subsurface data and numerical modeling
Andrea Nolting, P. J. Moore, Janelle Homburg, and Fermín Fernández-Ibáñez
AAPG Bulletin
... suggest that there is a large preservation potential for water-table caves to remain open and intact at depth, resulting in an additional contribution...
2021
Biostratigraphy of the North Horn Formation at North Horn Mountain, Emery County, Utah
Rose Difley
Utah Geological Association
... and eggshells first appear 1 to 2 m above the top of the basal unit at North Horn Mountain. The remainder of the geology and paleoenvironmental interpretations...
2007
Deltaic Systems in the Early Cretaceous Fall River Formation, Southern Powder River Basin, Wyoming
Donald L. Rasmussen, Connie J. Jump, Katherine A. Wallace
Wyoming Geological Association
... at the top of the Fall River Formation. The source of the Fall River sediments was east of the Powder River Basin (see Haun and Barlow, 1962, Fig. 6...
1985
Chapter 3: Stratigraphic Descriptions
Thomas X. Homza, Steven C. Bergman
AAPG Special Volumes
... stratified rocks is very sparse, thus we consider the Dinkelman et al. (2007) interpretation speculative and instead interpret the top of acoustic...
2019
Facies and Reservoir-quality Variations in the Late Visean to Bashkirian Outer Platform, Rim, and Flank of the Tengiz Buildup, Precaspian Basin, Kazakhstan
J. F. Collins, J. A. M. Kenter, P. M. Harris, G. Kuanysheva, D. J. Fischer K. L. Steffen
AAPG Special Volumes
... region and location of the Tengiz field.FIGURE 2. Structure contours on top of the Tengiz buildup. Current well locations and the path of the seismic...
2006
A RECONNAISSANCE SEDIMENTOLOGICAL STUDY OF THE MIDDLE JURASSIC UPPER SHAUNAVON FORMATION, SOUTHWEST SASKATCHEWAN
R.C.L. WILSON
Williston Basin Symposium
.... It may also be due, as McMillan (1966) implied, to an irregular top - Lower Shaunavon topography caused by pre-Upper Shaunavon erosion...
1987
Mechanisms of Sandstone Deformation: A Study of the Drape Folded Weber Sandstone in Dinosaur National Monument, Colorado and Utah
Robert A. Cook, David W. Stearns
Rocky Mountain Association of Geologists
... at Canyon Overlook (arrow 2); and slightly thinned at Stuntz Draw (arrow 3 . The ) benches shown here are Round Top (RT), Section Ridge (SR), Blue...
1975
SHAUNAVON (MIDDLE JURASSIC) SEDIMENTATION AND VERTICAL TECTONICS IN SOUTHWESTERN SASKATCHEWAN
J.E. Christopher
Montana Geological Society
... The Shaunavon Formation occupies the top of the Middle Jurassic section in Saskatchewan...
1966
Laboratory Determination of the Continuous Stress-Dependent Permeability of Unconventional Oil Reservoir Rocks
Daisuke Katsuki, Marte Gutierrez, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
.... In addition, lithification in shale matrix affects the pore structure. The intact shale permeability should be function mainly of effective stress, porosity...
2013
Structure of the Northern Margin of the Green River Basin, Wyoming
John K. Sales
Wyoming Geological Association
... the deepest in the foreland environment. The top of the Precambrian under these basins is in places deeper than 25,000 feet below sea level. The Hanna...
1971
Physical (Centrifuge) Modeling of Fold-thrust Shortening Across Carbonate Bank MarginsTiming, Vergence, and Style of Deformation
John M. Dixon
AAPG Special Volumes
... and the presence of a subreef dcollement horizon might facilitate transmission of compression across the intact platform and cause shortening in the basin...
2004
Drilling on Eniwetok Atoll, Marshall Islands
H. S. Ladd , Earl Ingerson , R. C. Townsend , Martin Russell , H. Kirk Stephenson
AAPG Bulletin
... seemed remote so the "junk basket" (a short section of pipe with an annular opening at the top, used to clean steel fragments from hole prior...
1953
Ecological and taphonomic fidelity in fossil crinoid accumulations
David L. Meyer, William I. Ausich
PALAIOS
... long been suspected to be susceptible to taphonomic biases because intact calyxes are under-represented or masked by disarticulated skeletal debris...
2019
Earthquake-Induced Landslides and Their Effects on Alluvial Fans
David K. Keefer
Journal of Sedimentary Research (SEPM)
..., with the designation based on the state of the material prior to landslide initiation. Keefer (1984a) defined rock as "firm, intact bedrock", and soil...
1999
Characteristics of Oil Provinces: A Study for Students
F. K. North
CSPG Bulletin
... such rocks readily become reservoirs. That the oil in such reservoirs tends to accumulate at the top of the carbonate formation, beneath a seal...
1971
Estimating Water Depths of Upper Cretaceous Pilot Knob Volcanic-Related Strata: The McKown and Pflugerville Formations and Pyroclastic Ash at the Lower Falls Section, McKinney Falls State Park, Austin, Texas
Robert G. Loucks, Robert M. Reed, Priyanka Periwal
GCAGS Journal
... Robert G. Loucks, Robert M. Reed, and Priyanka Periwal Figure 10. Pyroclastic ash beds. (A) Succession from bottom to top is altered ash bed...
2024
Sedimentological Signature of a Deformable Bed Preserved Beneath an Ice Stream in a Late Pleistocene Glacial Sequence, Ross Sea, Antarctica
Ellen A. Cowan, Poul Christoffersen, Ross D. Powell
Journal of Sedimentary Research (SEPM)
... and eroded to different degrees by the next glacial advance, represented in the core by a GSE at the top of the past cycle. The youngest complete glacial...
2012
COPROLITES IN THE RAVENS THROAT RIVER LAGERSTÄTTE OF NORTHWESTERN CANADA: IMPLICATIONS FOR THE MIDDLE CAMBRIAN FOOD WEB
JULIEN KIMMIG, BRIAN R. PRATT
PALAIOS
... belonging to type 1 consists of a lens-shaped aggregate of flakes surrounded by loosely distributed flakes (Fig. 7A, 7B) that were likely sloughed off the top...
2018
Reservoirs and Diagenesis Associated with Major Sequence-Bounding Unconformities
J.F. Read
Special Publications of SEPM
... COLLAPSE ZONE B INTACT FLOOR GR SP a. TOP/CONNELL FM. L!, z o (I) TOP/JOINS FM a. C,) Ç TOPI ELLENBURGER GP, (erst (acres W4 letec) root Case...
1995