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The AAPG/Datapages Combined Publications Database
Showing 612 Results. Searched 195,364 documents.
Characterization of Fluvial Sand Bodies in the Neslen and lower Farrer Formations (Upper Cretaceous), Lower Sego Canyon, Utah
Rex Cole
Rocky Mountain Association of Geologists
... bodies may be abrupt or tapered (Fig. 9). The tapered edges are often very calcareous and bioturbated. Single-story sand bodies were probably deposited...
2008
Early Pliocene (5 Ma) shark cetacean trophic interaction from Langebaanweg, western coast of South Africa
Romala Govender, Anusuya Chinsamy
PALAIOS
... is a deeper groove with ridges and grooves caused by tooth serrations. 2. CF2 is a simple groove with tapered end and no trace of serrations. 3. CF3...
2013
A LATE CRETACEOUS SHARK COPROLITE WITH BABY FRESHWATER TURTLE VERTEBRAE INCLUSIONS
DAVID R. SCHWIMMER, ROBERT E. WEEMS, ALBERT E. SANDERS
PALAIOS
... (defined below), with the tapered end presumed to be posterior (i.e., toward the anal direction; Hunt and Lucas 2012). Coprolites from neoselachians...
2015
Biostratigraphy and Lithostratigraphy of Chert in the Franciscan Complex, Marin Headlands, California
Benita Murchey
Pacific Section SEPM
... to 1.80 m sieve size population m f r a c t i o n , the majority being small theoperids with enlarged rounded terminal chambers or closed tapered d i...
1984
New Bivalves, Beichuaniacea, from the Lower Devonian of Sichuan, China
Daoyuan Gu, Xiezhang Liu
CSPG Special Publications
..., wedge-shaped; anterior end broadly rounded; posterior and elongate and tapered. Umbonal ridge prominent, especially dorsally. Shell margin broadly...
1988
Characterization of Fluvial Sand Bodies in the Neslen and Lower Farrer Formations (Upper Cretaceous), Lower Sego Canyon, Utah
Rex Cole
Utah Geological Association
... scour surfaces with mudchip lags are generally rare. The lateral terminations of single-story sand bodies may be abrupt or tapered (Fig. 9...
2008
PowerPoint Presentation
Engelder
Search and Discovery.com
... in schizosphere Fracture mechanics -- Tapered wedge Quantifying strain -- Nappes Properties of faults -- Fault bend folding Basement-involved folds...
Unknown
The Three Elements of Structural Geology Part 1, #41849 (2016).
Terry Engelder
Search and Discovery.com
... joint set Veins – Tapered wedge Quantifying strain - Plastosphere Cleavage – Nappes Properties of faults – Fault bend folding Basement-involved folds...
2016
The Three Elements of Structural Geology, #41849 (2017).
Terry Engelder
Search and Discovery.com
... 3.1--3.3.35 Fourth Sessions 4.1.1--4.2.5 Fifth Sessions 5.1.1--5.2.4 References Prologue --- Stress in schizosphere Fracture mechanics --- Tapered...
2017
Ecological interactions between Rhipidomella (Orthides, Brachiopoda) and its endoskeletobionts and predators from the Middle Devonian Dundee Formation of Ohio, United States
Rituparna Bose, Chris Schneider, P. David Polly, Margaret M. Yacobucci
PALAIOS
..., deformed growth lines. Two deep tapered scars were observed in one specimen; one located in the central region and the other in the lower right lateral...
2010
Historical Oil Samples from Pennsylvania: Geochemical Correlation
Nicola DahDah, Rasoul Sorkhabi, James Collister
Petroleum History Institute
... wells at the Drake Park at that time. Figure 6. GC chromatogram for Sample 15003C (“The Original Drake Well Park”). The thin, slightly tapered bottle...
2015
FOLDED CALCITE CRACKS IN NONCALCAREOUS SHALES: A WINDOW INTO SHALE DIAGENESIS AND HYDROTHERMAL INFLUENCE
Bin Sun,, Wan Yang
Journal of Sedimentary Research (SEPM)
.... G) A close-up view of the white box in Figure 9A, showing that a mixture of subhedral calcite and pyrite nodules filling the tapered tip of a crack...
2023
Neoichnology of burrowing millipedes: Linking modern burrow morphology, organism behavior, and sediment properties to interpret continental ichnofossils
Daniel I. Hembree
PALAIOS
... into the soil, pushing aside sediment; (2) wedgers, which have laterally expanded and tapered keels that are pushed into crevices and lifted to widen...
2009
“Window” Outcrop Analogs for Greater Natural Buttes Field, Uinta Basin, Utah
Howard White, Rex Cole, Steve Stancel, Carrie Lee, Logan Macmillan
Rocky Mountain Association of Geologists
.... The lateral terminations of the single-story sand bodies may be abrupt or tapered. Tapered edges are typically very calcareous and bioturbated. Single...
2008
Lenticular Shale Fabrics Resulting from Intermittent Erosion of Water-Rich Muds—Interpreting the Rock Record in the Light of Recent Flume Experiments
Juergen Schieber, John B. Southard, Arndt Schimmelmann
Journal of Sedimentary Research (SEPM)
... flattened, are deformed around other clasts, and show tapered edges. Many of the clasts range in size from 5 millimeters to several centimeters...
2010
Upper and Middle Devonian Ostracodes from the Beaverhill Lake Formation, Alberta, Canada
Peter McGill
CSPG Bulletin
..., the posterior socket small, the anterior socket elongate. Dorsal contact margin of RV tapered, to a fine edge, expanded at each cardinal angle to form...
1963
“Window” Outcrop Analogs for Greater Natural Buttes Field, Uinta Basin, Utah
Howard White, Rex Cole, Steve Stancel, Carrie Lee, Logan MacMillan
Utah Geological Association
... bodies may be abrupt or tapered. Tapered edges are typically very calcareous and bioturbated. Single-story sand bodies were probably deposited by a single...
2008
A Relict Triangle Zone at Benjamin Creek Gas Field, Southern Alberta Foothills: Geometry, Kinematics and Preservation
Roland G. Dechesne, James W. Muraro
CSPG Bulletin
... to the leading edge of the deformation only when the prism is at least critically tapered (Davis et al., 1983). Supercritical taper allows transport of the thrust...
1996
Early Diagenetic Concretions Associated with Intrastratal Shrinkage Cracks in an Upper Proterozoic Dolomite, Tasmania, Australia
Clive R. Calver, Peter W. Baillie
Journal of Sedimentary Research (SEPM)
... contain planar, bedding-normal veins, spaced 5-10 mm apart, and slightly tapered towards their upper and lower extremities. These thinner parts may...
1990
Speckled Beds: Distinctive Gravity-Flow Deposits in Finely Laminated Diatomaceous Sediments, Miocene Monterey Formation, California
Alice S. Chang, Kurt A. Grimm
Journal of Sedimentary Research (SEPM)
..., these aggregates appear lenticular in shape, with rounded or tapered terminations, and are consistently aligned parallel to bedding. In plan view...
1999
Spectral Decomposition in a Heavy-oil and Bitumen Sand Reservoir
Carmen C. Dumitrescu, Larry Lines
AAPG Special Volumes
... be either a tapered or untapered rectangular window (boxcar), Gaussian window, Hamming window, or Hanning window (Mallat, 1999). Partyka et al. (1999...
2013
Structural Analysis Using Spatial Filtering in Interior Plains of South-Central Alberta
J. E. Robinson , H. A. K. Charlesworth , M. J. Ellis
AAPG Bulletin
... be transformed back into the frequency domain. The tapered amplitude spectrum has another advantage. Undulations of a particular scale on a structure-contour...
1969
The Oil Fields of Russia: Chapter 6 - Well Casing
Arthur Beeby Thompson
Other Technical
... blocks, tapered on the inner side and provided with grooves which correspond with similar grooves planed on a wedge-block separating them...
1908
Experience of Opening of Beds by Encased Jet Perforators
N. G. Grigorian Н. Г. Григорян
Petroleum Geology: A Digest of Russian Literature
... to a change of the angle of the tapered jet channel in comparison with the charge as was used in the U.S.A., provides piercing of a passage...
1958
Late Tertiary Geologic History of the Continental Shelf off Northwestern Palawan, Philippines
E. V. Tamesis, E. V. Man̄alac, C. A. Reyes, L. M. Ote
Geological Society of Malaysia (GSM)
...r group in a tapered array) at intervals of 70.1 meters. This was towed 197 meters from the vessel. Recording instruments used were an SDS 1010 with binar...
1973