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The AAPG/Datapages Combined Publications Database
Showing 639 Results. Searched 200,756 documents.
An Unusual Dinosaur Coprolite from the Campanian Aguja Formation, Texas
Nina L. Baghai-Riding, Joseph N. DiBenedetto
GCAGS Transactions
... striae (Fig. 2C). Each unit exhibits a narrow medial constriction and is tapered at both terminal ends. One terminus is rather thick and obtusely...
2001
Gramp's Field, Archuleta County, Colorado
W. A. Waldschmidt
AAPG Bulletin
.... Grains of glauconite, and small, amber-colored, tapered Inoceramus prisms are characteristic of this member. Because it is very clayey, the "Carlile...
1946
Chapter 21: Evidence of Fault–Fracture “Hydrothermal” Reservoirs in the Southern Midcontinent Mississippian Carbonates
Priyank Jaiswal, Jay M. Gregg, Shawna Parks, Robert Holman, Sahar Mohammadi, G. Michael Grammer
AAPG Special Volumes
... faults (more tapered union with the LCB on the west side) weakly suggests that the strike-slip movement along the LCB fault could be right lateral...
2019
Predicting Reservoir Quality Using Linear Regression Models and Neural Networks
K.M. Love, C. Strohmenger, A. Woronow, K. Rockenbauch
AAPG Special Volumes
... a tapered moving average. This weights the values closer to the middle of the window more heavily than those at the ends. For the Zechstein 2 Carbonate...
1997
Density-current Strata in Lower Cretaceous Washita Group, North-central Texas
Robert W. Scott, Hooman Laali , David W. Fee
Journal of Sedimentary Research (SEPM)
... vertical burrows are circular to elliptical in outline and the sides are approximately vertical to slightly tapered. Sole marks other than trace...
1975
Physical (Centrifuge) Modeling of Fold-thrust Shortening Across Carbonate Bank MarginsTiming, Vergence, and Style of Deformation
John M. Dixon
AAPG Special Volumes
... with the critically tapered Coulomb wedge analysis of fold-thrust belts, in which the wedge is treated as a homogeneous continuum (Davis et al., 1983...
2004
Properties of Thrusts and Upper Bounds for the Size of Thrust Sheets
Robert D. Hatcher Jr.
AAPG Special Volumes
... of foreland fold-thrust belts, by a combination of stratigraphythinner structural-lithic units in the distally tapered part of the deforming wedge...
2004
Soil moisture retention characteristics of saprock from the weathering profile over a biotite-muscovite granite in Peninsular Malaysia
John Kuna Raj
Geological Society of Malaysia (GSM)
... wall thickness of 0.3 cm except at one end where the lower half tapered to 0.15 cm thick to provide a cutting edge. A brass ring was first driven...
2021
Characterizing a weathering profile over serpentinite in the Senaling area, Negeri Sembilan Darul Khusus
John Kuna Raj
Geological Society of Malaysia (GSM)
... the lower half tapered to 0.15 cm thick to provide a cutting edge. Prior to sampling, Warta Geologi, Vol. 48, No. 2, August 2022 Figure 3: Slope profile...
2022
Characterizing a weathering profile over quartz-mica schists in undulating terrain in Peninsular Malaysia
John Kuna Raj
Geological Society of Malaysia (GSM)
... cm except Figure 2: Slope profile and sample locations. 155 John Kuna Raj at one end where the lower half tapered to 0.15 cm thick to provide...
2022
Soil Moisture Retention Characteristics of Saprock in a Weathering Profile over Rhyolite in Peninsular Malaysia
John Kuna Raj
Geological Society of Malaysia (GSM)
...). The rings had a constant wall thickness of 0.3 cm except at one end where the lower half tapered to 0.15 cm thick to provide a cutting edge. A brass...
2023
"Glauconite" Pellets: Their Mineral Nature and Applications to Stratigraphic Interpretations
John F. Burst
AAPG Bulletin
... of increasing regularity, montmorillonite to muscovite. Segmented bar-graph for mixed-layer clays has tapered ends indicating indefinite boundaries...
1958
Laboratory Experiments on Form and Structure of Longshore Bars and Beaches
Edwin D. McKee , Thomas S. Sterrett
AAPG Special Volumes
... a seaward-sloping wedge that tapered to its termination approximately 30 feet from the beach area. At this time and during subsequent stages in the growth...
1961
Mineral Analysis of Sediments: Part 7. Methods of Study
F. J. Pettijohn
AAPG Special Volumes
...) consisting of (1) a small glass tube (D) 16 millimeters long with a 2 millimeter bore but tapered to 1 1/4 millimeter op ning at the lower end, (2) a trap (C...
1939
Floodplain Formation and Sediment Stratigraphy Resulting from Oblique Accretion on the Murrumbidgee River, Australia
K.J. Page, G.C. Nanson, P.S. Frazier
Journal of Sedimentary Research (SEPM)
... sequence of layers mapped tapered from 1.05 m to 0.30 m (Fig. 6C). This tapering and wedging out of the deposited layers strongly resembles...
2003
Developments in Alaska in 1968
T. D. Kirkpatrick
AAPG Bulletin
...-month in 1967, to 4 crew-months in 1968. Surface geology studies also dropped off to 12 crew-months, down 5 crew-months from 1967. Although it tapered...
1969
Differential Fault-Related Early Miocene Sedimentation, Bayou Hebert Area, Southwestern Louisiana
Richard P. McCulloh
AAPG Bulletin
... characteristic of growth faults. Overlapping of the tapered edges of multiple laterally adjacent intervals may also create potential for small...
1988
Reflectance of Vitrinite-Like Macerals as a Thermal Maturity Index for Cambrian-Ordovician Alum Shale, Southern Scandinavia (1)
B. BUCHARDT and M. D. LEWAN
AAPG Bulletin
... micrometers and 4 to 10 micrometers, respectively. The fragments' long dimension is parallel to the bedding fabric. Both ends are usually tapered but some...
1990
Structural Styles and Stratigraphic Patterns of Syndepositional Faults in a Contractional Setting: Examples from Quaidam Basin, Northwestern China
Tingguang Song, Xiepei Wang
AAPG Bulletin
... thrusting and hanging-wall folding. Thrusting along a listric plane (a) makes the hanging wall tilt, and upon which are deposited tapered sediments (b, c...
1993
Recognition of cyclicity in the petrophysical properties of a Maastrichtian pelagic chalk oil field reservoir from the Danish North Sea
Morten Stage
AAPG Bulletin
..., and 7.6 cycles/m. The data set was linearly interpolated using 1024 points and tapered using (Begin page 2009) a 10% cosine-taper. The MAM...
2001
Halokinetic sequence stratigraphy adjacent to the El Papalote diapir, northeastern Mexico
Katherine A. Giles, Timothy F. Lawton
AAPG Bulletin
... in progressive narrowing of the diapir to a tapered geometry and burial of the diapir (Figure 16). During equilibrium conditions, the diapir rises vertically...
2002
Low pressure buildup with large disposal volumes of oil field water: A flow model of the Ellenburger Group, Fort Worth Basin, northcentral Texas
Shuang Gao, Jean-Philippe Nicot, Peter H. Hennings, Paul La Pointe, Katie M. Smye, Elizabeth A.Horne, and Robin Dommisse
AAPG Bulletin
... al., 2015, 2016), relating pore pressure history and seismicity. Current hydrocarbon development activity has considerably tapered off with current...
2021
The Three Elements of Structural Geology Part 5, #41849 (2016).
Terry Engelder,
Search and Discovery.com
... Set 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 Veins Transitional-Tensile Fracture Shear Failure Friction: Critically Stressed Earth The Tapered Wedge 3.1.1 3.1.2...
2016
Benthic foraminiferal morphogroups and trace fossils from Albian shallow-marine mudstone facies of the Viking Formation, Western Interior Seaway, Canada
David H. McNeil, James A. MacEachern
PALAIOS
..., and tapered groups with increased water depth, and a tendency for rounder forms to occur in shallower water. In practice, Severin’s approach didn’t fare...
2023
Interpreting the nature of the Aulet and Adons diapirs from sedimentologic and stratigraphic analysis of flanking minibasin strata, Spanish Pyrenees, Catalunya, Spain
C. Evelyn Gannaway Dalton,, Katherine A. Giles, Josep Anton Muñoz, Mark G. Rowan
Journal of Sedimentary Research (SEPM)
... zones of deformation (300–1000 m) and gradational facies changes. Hook and wedge halokinetic sequences stack stratigraphically to form tabular and tapered...
2022