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The AAPG/Datapages Combined Publications Database
Showing 26,347 Results. Searched 195,731 documents.
Morphology and Origin of Ripple-Drift Cross-Lamination, with Examples from the Pleistocene of Massachusetts
Alan V. Jopling, Roger G. Walker
Journal of Sedimentary Research (SEPM)
... of sediment fallout from suspension to sediment moved as bed load. Type A represents dominant bed-load movement, and sinusoidal ripple lamination represents...
1968
Significance of Thin Sets of Eolian Cross-Strata: DISCUSSION
Gary Kocurek, Mary Crabaugh
Journal of Sedimentary Research (SEPM)
... was evaluated in light of more recent advances in bed-form interpretation (e.g., Hunter and Rubin 1983; Rubin and Hunter 1983; and especially Rubin 1987...
1993
AAPG Archie Series, No. 1, Chapter 10: Modeling Log Responses in Thinly Bedded Reservoirs
Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia
AAPG Special Volumes
... is the foundation of our approach to thin-bed evaluation. These mathematical models range in complexity from simple approximate equations to detailed...
2006
Hierarchical Levels of Heterogeneity in a Mississippi River Meander Belt and Application to Reservoir Systems: Geologic Note (1)
DOUGLAS W. JORDAN and WAYNE A. PRYOR
AAPG Bulletin
... bed-set boundaries. Heterogeneity level 6 is individual sand laminae (grain-flow lenses or grain-fall sheets) separated by textural variations...
1992
Microstratigraphy and Comparative Taphonomic Analysis of the Upper Core Shale of a Pennsylvanian Cyclothem: Keys to the Recognition of Subtle Cyclic Deposition
James R. Thomka, Ronald D. Lewis, Daniel Mosher, Peter F. Holterhoff, Isabel A. Leon y Leon, Roger K. Pabian
GCAGS Transactions
... fossils are also present in two thin horizons above what has been termed the Main Crinoid Bed (Lewis et al., 1998). Further, recent research focusing...
2011
CARBONATE PETROLOGY OF THE MISSISSIPPIAN SYSTEM IN NORTHERN ALABAMA
W. Everett Smith
Alabama Geological Society
... be suborbicularis 67 - bed 46: now reads "siliceous and"; should read "slightly" 69 - bed 43: now reads "siliceous to"; should read "slightly" 69 - bed 40: now...
1967
Pollen Changes Near the Fort Union-Wasatch Boundary, Powder River Basin
Robert H. Tschudy
Wyoming Geological Association
... that this boundary be placed at, 1. an unconformity (several are present), 2. at or near the top of the Roland coal bed of Taff (1909), 3. at the top...
1976
Insoluble Residues in a Portion of the Ordovician Cynthiana Formation, North-Central Kentucky
Gene C. Carpenter, Ronald G. Schmidt
Journal of Sedimentary Research (SEPM)
... sizes and are believed to have a bentonitic origin. CARROLL, DOROTHY, 1959, Zircon from a bentonite bed in the Martinsburg shale (Ordovician...
1962
Cretaceous-Tertiary Boundary Stratigraphy near San Antonio, Orange Walk District, Belize, Central America
David T. King, Jr.
GCAGS Transactions
... encompasses the Maastrichtian Barton Creek Dolomite and overlying boundary diamictite layer with basal spheroid bed. The upper contact with Paleocene...
1996
Biogenic Graded Bedding
Donald C. Rhoads , Daniel J. Stanley
Journal of Sedimentary Research (SEPM)
... of displacing 87 liters of sediment per m2 per year at the mean annual water temperature of Barnstable Harbo (11°C). The thickness of a graded bed...
1965
Application of Borehole Image-Based Porosity Analysis in Carbonate Reservoirs to Assist in Permeability Calculation and Its Integration With Resistivity Inversion to Distinguish Productive Vuggy Zones and Tight Zones
Elvara Priyanka, Didit Kusuma, Budi Abrar, Nabilah Adani, Dian Permanasari
Indonesian Petroleum Association
... to the secondary porosity types. In this well, the predominant secondary porosity types are connected vugs, with subordinate solution-enhanced bed boundary...
2022
Flat Stratification: Two Ancient Examples
R. C. Lindholm
Journal of Sedimentary Research (SEPM)
..., Blackwell Scientific Publications, London, p. 1--41. HARMS, J. C., 1975, Stratification produced by migrating bed forms, in Depositional Environments...
1982
Morphology, Internal Structure, and Reversal of Asymmetry of Large Subtidal Dunes in the Entrance to Gironde Estuary (France)
Serge Berne , Patrice Castaing , Eliane le Drezen , Gilles Lericolais
Journal of Sedimentary Research (SEPM)
... oscillations of the tidal range control the magnitude and orientation of the net bed-load transport in the study area. Because the response time of the large...
1993
Chapter 28: Architecture of an Aggradational Deep-water Channel Complex: Channel Complex 2, Isaac Formation, Windermere Supergroup, British Columbia, Canada
Mark D. Barton, Ciarán J. O’Byrne, Gary S. Steffens, Carlos Pirmez, Heinz Buergisser
AAPG Special Volumes
... of light-colored sandstone beds capped by thin, dark-colored mudstones (intrachannel shales) within channel story 3D. Bed tops are to the left...
2007
Oil Shale of Permian Irati Formation, Brazil
Vincente T. Padula
AAPG Bulletin
.... The oil shale beds are thickest in the vicinity of Sao Gabriel, in Rio Grande do Sul, where the upper bed averages about 9 m, the lower bed about 4.5 m...
1969
Distribution and Quality of Oil Shale in the Green River Formation of the Uinta Basin
W. B. Cashion
Utah Geological Association
... the deposition of each bed. Also, in the areas where oil-shale sequences interfinger with near-shore sequences, some oil-shale beds show mudcracks or lie adjacent...
1964
New Data on the Comanchean Strata of Central Kansas
W. H. Twenhofel, A. C. Tester
AAPG Bulletin
... with the Wellington (?) formation of the Permian. The basal bed of the Comanchean is a coarse pebble conglomerate overlain by coarse-grained light-buff sandstone...
1926
Cretaceous Sediments in Crowleys Ridge, Southeastern Missouri: GEOLOGICAL NOTES
F. E. Matthes
AAPG Bulletin
... Ridge, near Ardeola, Stoddard County, Missouri, a bed of greenish glauconitic clay 4-5 feet thick, containing molds of marine shells, including...
1933
Feldspathized Shales from Minnesota
Malcolm P. Weiss
Journal of Sedimentary Research (SEPM)
.... FIELD DESCRIPTION AND STRATIGRAPHY Within one of the thicker beds of light-gray calcareous shale in the Dubuque formation lies a bed, three to four...
1954
Peat Accumulation and Compaction in a Connecticut Coastal Marsh
Arthur L. Bloom
Journal of Sedimentary Research (SEPM)
...Peat Accumulation and Compaction in a Connecticut Coastal Marsh Arthur L. Bloom 1964 Vol. 34 No. 3. (September), A sedge-peat bed, upon which...
1964
Entrainment and Distribution of Different Sand Sizes Under Water Waves
Peter Nielsen
Journal of Sedimentary Research (SEPM)
...Entrainment and Distribution of Different Sand Sizes Under Water Waves Peter Nielsen 1983 Vol. 53 No. 2. (June), Analysis of the bed sediment...
1983
Deposits of Deflected and Ponded Turbidityents, Currents, Sorbas Basin, Southeast Spain
Peter D. W. Haughton
Journal of Sedimentary Research (SEPM)
... in the vicinity of where north-to-south transverse paleoflows are replaced eastward by west-to-east axial flows. Three distinctive types of bed...
1994
Chapter 41: Facies Architecture of Channel-levee Deposits, Lago Nordenskjold and Laguna Mellizas Sur, Cerro Toro Formation, Chile
Mark D. Barton, Peter Craig, Brad E. Prather, Jonathan Copus
AAPG Special Volumes
... bedding diagram for subunits T3-T6 is shown in Figure 3a. The bed-scale architecture within subunits T3 through T6 was mapped between five measured logs...
2007
Chapter 71: High-resolution Correlation of a Coarse-grained, High Net-to-gross Sheet System: Kongsfjord Formation, Nålneset Peninsula, Norway
Nicholas J. Drinkwater
AAPG Special Volumes
... comprehensive bed-by-bed correlation in a series of high-resolution measured sections. The outcrop is composed of high net-to-gross sheet sandstones...
2007
The Deployment of an Azimuthal Resistivity Tool for Geosteering - A Case Study from the Foinaven Field (North Sea), #40540 (2010)
Martin Bedrock, Darren Moody
Search and Discovery.com
... the premature exit of a thin sand body by identifying an underlying conductive shale bed, (ii) recognising a key channel transitions, and (iii) confirming...
2010