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The AAPG/Datapages Combined Publications Database

Showing 27,576 Results. Searched 191,010 documents.

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Interpreting the Concept of the Sedimentation Unit

Alan V. Jopling

Journal of Sedimentary Research (SEPM)

... the aggradation is directed. A velocity change accompanies such an adjustment, but it is the effect rather than the cause, a dependent variable, rather...


Transportation of Detritus by Moving Water

Filip Hjulstrom

Special Publications of SEPM

...; in turbulent flow it moves in pulsations in a variable way. The velocity of water in laminar flow is always low; in turbulent flow it may be low or high...


Image - Rays and the Treatment of Inhomogeneity in Migration

L. Hatton

Southeast Asia Petroleum Exploration Society (SEAPEX)

... depth conversion. Mildly Variable Velocity: Conformal Dipping Layers. This case is illustrated in Figure 7c. Any time-migration algorithm can be used...



Keshan Zou, Jianchun Dai, Andy Hannan

Geological Society of Trinidad & Tobago

... is a must for any reasonable multi-component data interpretation downroad. The yielded Vp and Vs ratio could be used for migration velocity updating...


Abstract: The role of hydrogeology in developing effective mine water control programs in fractured porous rocks

John E. Gale, R. MacLeod, G. Bursey

Atlantic Geology

... Major's Path, St. John's, NF AJA 5Al, Canada 1 Many open pit and underground mining sites are characterized by overburden of variable thickness...


Interactive Color Display and Analysis--Added Dimension to Seismic Interpretation: ABSTRACT

G. W. Rice, B. B. Stebens, Peter Macalister Hall

AAPG Bulletin

... in multiple seismic parameters such as reflection strength, velocity, frequency, and structure can be assimilated more effectively with the aid of interactive...


Use of Precise Temperature Logs in Determination of Thermal Properties of Sedimentary Rocks and Investigation of Thermal Evolution of Sedimentary Basins: ABSTRACT

David Blackwell, John Steele, Dan Hagedorn

AAPG Bulletin

... addressed. The thermal properties of many sedimentary rocks are not well known and the depth and time variable changes associated with compaction...


Mid-Tertiary Conglomerate Deposition and Structural Implications, Southwestern Wind River Range, Wyoming: ABSTRACT

Richard J. Bottjer, James R. Steidtmann, Larry T. Middleton

AAPG Bulletin

... with their long axes between transverse and longitudinal positions, indicating later reworking of orientations developed during initial high velocity flows. Thus...


Hydromechanical Principles of Sediment Structure Formation

L.I. Briggs, G. V. Middleton

Special Publications of SEPM

... and direction of the velocity at any point can thus be repre sented by drawing a velocity vector whose direc tion is a tangent to the streamline...


Modeling Tidal Bedding In Distributary-Mouth Bars

Nicoletta Leonardi, Tao Sun, Sergio Fagherazzi

Journal of Sedimentary Research (SEPM)

... for small ratios of mud to sand settling velocity and mud to sand concentration. Bottom friction strongly affects tidal bedding by reducing the length...


Abstract: Reservoir Characteristics of a Quaternary Channel: Incorporating Rock Physics in Seismic and DC Resistivity Surveys; #90211 (2015)

Jawwad Ahmad and Douglas Schmitt

Search and

... properties into geological interpretation. High porosity and poorly consolidated channel sand shows variable seismic velocity that mainly depends...


Physical Basis of Reflection Seismology

Bruce S. Hart

Special Publications of SEPM

... for the sound to travel fro A to B and back again (the two-way travelti e, TWT), we can deter ine the distance AB by ultiplying the velocity of sound...


Flow Behavior of Ponded Turbidity Currents

Marco Patacci, Peter D.W. Haughton, William D. Mccaffrey

Journal of Sedimentary Research (SEPM)

... in slope mini-basins and on small, structurally confined basin floors in strike-slip and foreland-basin settings. They can have a variable internal...


Some Principles and Techniques Used in Reconstructing the Hydraulic Parameters of a Paleo-Flow Regime

Alan V. Jopling

Journal of Sedimentary Research (SEPM)

..., or over a lobate front of a small delta. The merging of current filaments in a variable velocity field affords another example; strong vorticity...


Effects of Biogenic Silica on Acoustic and Physical Properties of Clay-Rich Marine Sediments (1)


AAPG Bulletin

... in highly variable and, at times, inverse velocity-depth gradients. The diagenetic conversion of opal-A to opal-CT and finally to quartz...


Orientation Studies of Waterlogged Wood: A Paleocurrent Indicator?

David I. M. Macdonald, Tim H. Jefferson

Journal of Sedimentary Research (SEPM)

... fragments appear to be current velocity, fragment shape and fragment size. BERTSBERGH, J. W. B., VAN, 1940, Richtungen der sedimentation in der rheinischen...


Profiler-Sonobuoy Measurements in Colombia and Venezuela Basins, Caribbean Sea

William J. Ludwig , Robert E. Houtz , John I. Ewing

AAPG Bulletin

... that the material below B^Prime can contain large amounts of sediment unless the sediment has a velocity near that of basalt. The discontinuous reflectors...


Refraction Shooting with Expendable Sonobuoys: GEOLOGICAL NOTES

J. Ewing , R. Leyden , M. Ewing

AAPG Bulletin

..., 1968, Velocity of deep-sea sediments from sonobuoy data: Jour. Geophys. Research, v. 73, p. 2615-2641. Le Pichon, X., J. Ewing, and R. E Houtz...


Abstract: Interferometric Approach to Complete Refraction Statics Solution; #90187 (2014)

Valentina Khatchatrian and Mike Galbraith

Search and

... refraction data and to replace variable low velocity with the velocity below weathering to improve resolution of the seismic data. A data driven statistical...


Bed Configurations

Gerard Middleton, John B. Southard

Special Publications of SEPM

... velocity for a given discharge is more complicated, because a variable volume of It's generally accepted, water can be stored in the sump. however...


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