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The AAPG/Datapages Combined Publications Database

Showing 10,776 Results. Searched 192,662 documents.

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Abstract: SAGD Production Monitoring by Seismic Refraction; #90172 (2014)

D. Dubucq, Tuhin Bhakta, P. Thore

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... of a fast layer, is refracted along the top of that layer, and returns to the surface as a head wave. The waves which return from the top of rock...


Shear-Derived Mixing in Dense Granular Flows

Peter J. Rowley, Peter Kokelaar, Martin Menzies, Dave Waltham

Journal of Sedimentary Research (SEPM)

... remobilization feature was generated; i.e., the feature is a result of activity at the base of the flow and not at its head. (3) The upper layer...


Field guide to the Accretionary Complex and Neotectonics of South-Central Alaska, Anchorage to Seward, 2011

Susan M. Karl, Dwight C. Bradley, Marti L. Miller, Rodney A. Combellick

Alaska Geological Society

... and seiche waves, and causing wave runups as high as 10 m in town (Fig. 15), and as high as 12 m and as far as 1.5 km inland at the head of Resurrection...


An Explanation of the Logarithmic Spiral Plan Shape of Headland-Bay Beaches

Paul H. Leblond

Journal of Sedimentary Research (SEPM)

... that the waves propagate radially from the headland to the beach. The only refractive effect considered at this stage is the retardatio of the waves...


Updated Conceptual and MODFLOW Ground-Water Models of Cache Valley, Utah and Idaho

Thomas E. Lachmar, Barry Myers, J. Mike Robinson

Utah Geological Association

... was reduced by 70 cfs (2.0 cms). Figure 9. Location of general head boundary cells (dark gray) in Layer 1 (Myers, 2003). The units on each of the axes...


The Influence of A Lateral Slope On Turbidite Lobe Development On A Modern Deep-Sea Slope Fan (Villafranca Deep-Sea Fan, Tyrrhenian Sea)

Fabiano Gamberi, Marzia Rovere, Alessandra Mercorella, Elisa Leidi

Journal of Sedimentary Research (SEPM)

... with different properties, which independently but simultaneously feed the eastern and the western lobe. In both cases, the effect of the lateral...


Limitations of Ground Water as Aid in Determination of Hidden Geologic Structure

E. K. Soper

AAPG Bulletin

...Limitations of Ground Water as Aid in Determination of Hidden Geologic Structure E. K. Soper 1932 335 360 16 4. (April) The main features...


Variations in Large-Scale Beach Amplitude Along the Coast

Nina Fisher, Robert Dolan, Bruce P. Hayden

Journal of Sedimentary Research (SEPM)

.... 8th Coastal Eng. Conf., New York, ASCE, p. 248-278. HUNTLEY, D. A., AND BOWEN, A. J., 1975, Field observation of edge waves and their effect...


Geological Evidence for Storm Transportation and Deposition on Ancient Shelves

Roger G. Walker

Special Publications of SEPM

... waves 20 Gilbert's deduction of 1967, The work of Hayes can be taken as Hurricanes Carla and Cindy. the beginning of "modern" geological studies...


Wheeler Gorge Turbidite-Conglomerate Series, California; Inverse Grading

Richard V. Fisher, James M. Mattinson

Journal of Sedimentary Research (SEPM)

... on the largest particles. The "Bernoulli boundary layer effect" may explain reverse grading in coarse-grained turbidite deposits, in mudflows, possibly...


Gravitational Salt Tectonics Triggered by Deposition of Turbiditic Lobes: a New Experimental Modeling Approach with Applications to Salt Tongues in the U.S. Gulf of Mexico, #40478 (2009)

Nicolas Sellier, and Bruno C. Vendeville

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... a viscous layer of silicone polymer (mobile salt). We investigated the effect of depositing several consecutive lobes on mobile salt. One experiment, two...


Sequence Stratigraphy of the T Factory

Wolfgang Schlager

Special Publications of SEPM

... by a layer of cemented mud. Hydraulic gradient is the difference in hydraulic head divided by the horizontal distance. Hydraulic gradient in a sealed...


Analysis of Salt Movement

New Orleans Geological Society

... gravity head and pressure head values. Total head equals gravity head (zi) plus pressure head (Pi/ig). Total head is constant throughout layer shown...


Tidal Flat Erosion by Ice at La Pocatiere, St. Lawrence Estuary

Jean-Claude Dionne

Journal of Sedimentary Research (SEPM)

... during Post-glacial time. The floor of the bay is composed mainly of a stony, marine clay deposit overlain by a layer of soft mud 30 to 50 cm thick...


Damage Mechanism Analysis and Risk Assessment of Pressure Vessel Absorber, LP Flash Column, Rich Solution Heater at CO2 Removal Plant Unit

Laksmana Putra Leuvinadrie, Johny Wahyuadi M. Soedarsono, Budi Artono, Budiman Sarwidi

Indonesian Petroleum Association

... + 4,6359 (head) and Y = -0.0161x + 1.3682 (shell) in the pressure vessel. From the criticality matrix, there are 2 pressure vessels at the risk rating...


Abstract: Near Surface Anomalies and Solutions; #90211 (2015)

Todd Mojesky, David LeMeur, and Ali Karagul

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... algorithms (GLI, GMG, ...). These assume a layered model of the earth, with refractor head waves propagating along locally continuous boundaries. In more...


Simulations of the Origin of Fluid Pressure, Fracture Generation, and the Movement of Fluids in the Uinta Basin, Utah

J. D. Bredehoeft , J. B. Wesley , T. D. Fouch

AAPG Bulletin

... the deep productive interval at Altamont field (our layer 6 in Figure 4). Figure 7, computed from Figure 6, is the hydraulic head in the deep productive unit...


Flume Experiments on the Transition from Ripples to Lower Flat Bed with Increasing Sand Size

John B. Southard, Lawrence A. Boguchwal

Journal of Sedimentary Research (SEPM)

... in the necessarily nonplanar bed profile in the zone of boundary-layer development or, if a false bottom at the head of the channel is used, by cross...


Sedimentology of a Melange: Franciscan of Trinidad, California

K. R. Aalto

Journal of Sedimentary Research (SEPM)

.... Grain-flow and traction transport alternately effect sediment deposition near the head of the flow. Grain-flow may again predominate as the flow...


Slope Control on Submarine Channel Widths

Dave Waltham

Journal of Sedimentary Research (SEPM)

... significance of head and body spill from a channelized turbidity current: Geological Society of America, Bulletin, v. 83, p. 1151–1156. Komar, P.D., 1973...


Formation of Ripple Bands in a Wave-Convergence Zone

K. P. Black , T. R. Healy

Journal of Sedimentary Research (SEPM)

... in Figure 10, the storm wind induces a flow pattern similar to that under waves. A gradient is set up against the coast, and currents head shorewards...


Dielectric Permittivity of Evaporite Minerals

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... imaging. The difference in the dielectric permittivity leads to a reflection of the electromagnetic waves travelling in these layers. The GPR technique...


Modern Evaporite Deposition in Coastal Peru

Robert C. Morris, Parke A. Dickey

Tulsa Geological Society

... precipitated at the present time in the saline environment near the head, and halite at the extreme upper end of the Bocana (fig. 2). Black muds are found...


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