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The AAPG/Datapages Combined Publications Database
Showing 639 Results. Searched 200,357 documents.
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
A New Late Paleocene Vertebrate Fauna from the Ohio Creek Formation of Western Colorado
Benjamin John Burger
Rocky Mountain Association of Geologists
... are slightly less inflated, exhibiting a more tapered outline. Table 1. Measurements of specimens. P upper premolar, M upper molar, p lower premolar, m lower...
2007
The Exploration of the Nickel Laterite Deposits in Irian Barat, Indonesia
C. D. Reynolds, I. Havryluk, Saleh Bastaman, Soepomo Atmowidjojo
Geological Society of Malaysia (GSM)
... in order to develop comparative information. C. D. 316 REYNOLDS et al. The test pits measured 1-1 /2 meters square at the surface and tapered downward...
1973
First Sub-Sea DST Well Test With ESP in Indonesia
Imanudin, Mohammad Reza Yazdi, Khaled Hatem, Li Chun Long, Azriz Azim Abdul Aziz
Indonesian Petroleum Association
... are simply pushed up through the wellhead. Sealing adapters seal to the BOP Can using tapered threads for minimal space requirements. A breakaway penetrator...
2007
CO2 Injection and Sequestration in Depleted Oil and Gas Fields and Deep Coal Seams: Worldwide Potential and Costs
SCOTT H. STEVENS, VELLO A. KUUSKRAA, JOHN GALE, DAVID BEECY
Environmental Geosciences (DEG)
... injection rate of 23,000 t/day (426 106 ft3/day) in 1996 before being tapered off gradually. Altura forecasted recovery of 348 million bbls of EOR...
2001
Strontium Isotope Stratigraphy and the Oligocene-Miocene T-Letter Stages in Papua New Guinea
T. L. Allan, J. A. Trotter, D. J. Whitford, M. J. Korsch
Papua New Guinea (PNG) Petroleum Convention Proceedings
... that have a “saddle”-shaped outline in oblique vertical section (across the test periphery) and an elongate, tapered outline in vertical section...
2000
Modeling Tectonic Structures by Synthetic Seismic Construction: Comparison with Local Fold and Thrust Front Development in the Permian Basin Province
Richard J. Erdlac, Jr., Douglas B. Swift
West Texas Geological Society
... until a constant, critically tapered wedge formed and slid along the detachment with no further internal deformation. Completed models were preserved...
2000
Pre-Cambrian Geology of the Area Between Clay Basin and Browns Park in Utah and Colorado
Wallace R. Hansen
Wyoming Geological Association
... "chessboard structure," generally with short discontinuous twin laminae in part tapered or wedge-shaped, but with optical continuity. Optical continuity...
1955
Laramide Synorogenic Strata Bounding the Front Range, Colorado
Robert G. Raynolds
Rocky Mountain Section (SEPM)
... define a tapered wedge lapping onto the Cretaceous strata of the High Plains. The Denver Basin has been classified as a perimeter Laramide basin...
2003
Fishing Techniques for Drilling Operations
J. Douglas Cearley
Abilene Geological Society
...-bottomed mill, it sometimes pays to redress it with a tapered or pilot mill before making a catch tool run. Sometimes small workover tubing is used...
1999