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The AAPG/Datapages Combined Publications Database
Showing 29,449 Results. Searched 200,693 documents.
Techniques for Automated Measurement of Floc Properties
Gwyn Lintern, Gilliane Sills
Journal of Sedimentary Research (SEPM)
.... Matlab and IDL routines have been designed to measure settling velocity. The use of totally automated tracking over measurements made by a graphical...
2006
The Trapping and Binding of Subtidal Carbonate Sediments by Marine Vegetation in Bimini Lagoon, Bahamas
Terence P. Scoffin
Journal of Sedimentary Research (SEPM)
... with dense epiphytic algae, Laurencia intricata and Polysiphonia havanensis. All three types can reduce the velocity of water from a speed...
1970
Exploratory Flow-Duct Experiments on Combined-Flow Bed Configurations, and Some Implications for Interpreting Storm-Event Stratification
R. William Arnott , John B. Southard
Journal of Sedimentary Research (SEPM)
... under a wide range of oscillatory (Uo) and unidirectional (Uu) velocity components, with a constant oscillation period of 8.5 sec and median grain size...
1990
Structure of Continental Margin off Punta del Este, Uruguay, and Rio de Janeiro, Brazil
Robert Leyden , William J. Ludwig , Maurice Ewing
AAPG Bulletin
.... The variable-angle reflection data gave a velocity of 2.89 km/sec for the deepest layer observed in the vertical profile, and refracted waves gave...
1971
Experiments on Upstream-Migrating Submarine Knickpoints
Horacio Toniolo, Alessandro Cantelli
Journal of Sedimentary Research (SEPM)
.... Dietrich, W., 1982, Settling velocity of natural particles: Water Resources Research, v. 18, p. 1615–1626. Fildani, A., and Normark, W., 2004, Late...
2007
Pebble Shape (and Size!): REPLY
Werner K. Illenberger
Journal of Sedimentary Research (SEPM)
... wanted answers to. If an individual loading of a variable is high on a particular factor, then it means that variable is very similar to that factor...
1992
The Influence of Transport Fluctuations on Spatially Averaged Topography on a Sandy, Braided Fluvial Fan
Chris Paola, Gary Parker, David C. Mohrig, Kelin X. Whipple
Special Publications of SEPM
... Recent Advances in for Sedimentary 2 g velocity depth sediment flux even if input fluxes are The constant reconfiguration of the flow pattern gives...
1999
Cenozoic Reefs--New Targets for Oil Fields in the Northern Part of the South China Sea
Hao Fuguang
Circum Pacific Council Publications
... seismicreflection profiles. Characteristics of Reefs on Seismic-reflection Profiles Distinct Boundaries The difference of velocity and density between the reef...
1989
AVO Response for Gas Sands of the Monserrate Formation, Upper Magdalena Valley of Colombia
C.J. Dueñas, M. G. de Freitas, A. Mantilla
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... step consists of well log-based AVO modeling using the Greenberg & Castagna equation to model the shear wave velocity (Vs) from P-wave logs; Gassmann...
2006
Concepts of Fluid Mechanics Provided by Primary Sedimentary Structures
John E. Sanders
Journal of Sedimentary Research (SEPM)
... transportation depend on both current velocity and grain size of the sediment. Two fundamentally different mechanical processes are most important (Gilbert...
1963
Seismic Evidence for Widespread Possible Gas Hydrate Horizons on Continental Slopes and Rises
Thomas H. Shipley, Mark H. Houston, Richard T. Buffler, F. Jeanne Shaub, Kenneth J. McMillen, John W. Ladd, J. Lamar Worzel
AAPG Bulletin
... sediment velocity determinations made while reflection profiling: Jour. Geophys. Research, v. 73, p. 2597-2614. Markl, R. G., G. M. Bryan, and J. I...
1979
Sedimentology and Petrophysical Character of Cretaceous Marine Shale Sequences in Foreland BasinsPotential Seismic Response Issues
W. R. Almon, Wm. C. Dawson, F. G. Ethridge, E. Rietsch, S. J. Sutton, B. Castelblanco-Torres
AAPG Special Volumes
... are variable and are moderate to poor seals.Shale Reflection Modeling ExperimentThe presence of a low-velocity and low-density zone (microfacies 3...
2005
Geologic Considerations for Stratigraphic Modeling and Interpretation: Section 3. Stratigraphic Models from Seismic Data
L. D. Meckel Jr. , A. K. Nath
AAPG Special Volumes
..., and A. R. Gregory, 1974, Formation velocity and density--the diagnostic basics for stratigraphic traps: Geophysics, v. 39, no. 6, p. 770-780. Gassman, F...
1977
The Asteroidal Impact Theory and Some Geologic Evidence for Asteroidal Impacts on Earth: A discussion of Direct and Indirect Data of Extraterrestrial Bodies and Their Motions and How They May Have Affected Earth Structures
Robert E. Cohenour, Byron J. Sharp
Utah Geological Association
... Comparisons 114 Available Energy in Large High-Velocity Bodies 117 Phenomenology of Large Meteoritic and Asteroidal Impacts 117 Some Suspected...
1987
Palaeohydraulic Interpretation Using Mathematical Models of Contemporary Flow and Sedimentation in Meandering Channels
John S. Bridge
Dallas Geological Society
..., Velocity profiles and bed shear stress over various bed configurations in a river bend: Earth Surf. Proc., v. 2, p. 281-294. Coleman, J. M., 1969...
1977
Palaeohydraulic Interpretation Using Mathematical Models of Contemporary Flow and Sedimentation in Meandering Channels
John S. Bridge
CSPG Special Publications
..., Velocity profiles and bed shear stress over various bed configurations in a river bend: Earth Surf. Proc., v. 2, p. 281-294. Coleman, J. M., 1969...
1977
Flow substrate interactions in aggrading and degrading submarine channels
Anjali M. Fernandes, James Buttles, David Mohrig
Journal of Sedimentary Research (SEPM)
..., J.P., 2010, Normalized velocity profiles of field-measured turbidity currents: Geology, v. 38, p. 563– 566, doi:10.1130/G30582.1. Xu, J.P., Noble, M.A....
2020
Depositional Effects of Flow Nonuniformity and Stratification Within Turbidity Currents Approaching a Bounding Slope: Deflection, Reflection, and Facies Variation
Ben Kneller, William McCaffrey
Journal of Sedimentary Research (SEPM)
..., that is dependent upon flow velocity, the reciprocal of flow height, and the density stratification. Low values of Fi result in decoupling of the flow...
1999
High-Resolution Visualization of Flow Interference Between Frac Clusters (Part 1): Model Verification and Basic Cases
Ruud Weijermars, Arnaud van Harmelen, Lihua Zuo, Ibere Nascentes Alves, Wei Yu
Unconventional Resources Technology Conference (URTEC)
... plots streamlines, the time-of-flight for fluid to fracs, velocity contours and pressure distribution around fracked wells. Independent simulations...
2017
Imaging in Complex Environments Common Reflection Angle Migration
Graham A. Winbow
Indonesian Petroleum Association
... amplitude or first arrival). Illumination is an issue because significant lateral velocity variation produces significant laterally varying ray...
2007
Plans for Drilling the Mohole
Willard Bascom, J. S. Brown
CSPG Bulletin
... crust and the mantle, called the "moho," was defined by Professor A. Mohorovicic in 1910 as a discontinuity at which the velocity of seismic waves...
1960
Application of Rock Physics Models to Predict Rock Properties Away from Well Control: Block B, Natuna Sea, Miocene Producing Reservoir Case Studies
Putri Wisman, Retno Wijayanti, Carl Fakaruddin, John Hughes
Indonesian Petroleum Association
.... Mapping porosity from velocity exhibited flat trends of little predictive value which implies variable sorting and clay content in reservoir sands...
2013
Permeability of Unconsolidated Rocks: GEOLOGICAL NOTES
Frederick G. Tickell
AAPG Bulletin
.... The airflow through the sample is viscous. This can be checked by knowing the critical velocity of the water meniscus between two given points...
1935
CSEM Application in Carbonate Environment: A Case Study (Paper P46)
A. S. Saleh, S. K. Chandola, P. K. Lee, T. Velayatham, P. Kumar, M. S. Wahid, J. Beenfeldt
Geological Society of Malaysia (GSM)
... of the EM data was the extremely high and variable resistivity values observed especially at the target level. The earth models for 3D inversion were...
2012
Amplitude Versus Offset (AVO) Analysis: Part 7. Geophysical Methods
Allan T. Long, R. C. Anderson
AAPG Special Volumes
... to amplitude and waveform changes concurrently. Feasibility modeling requires the following: (1) a depth-velocity model, (2) density and velocity...
1992