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The AAPG/Datapages Combined Publications Database

Showing 582 Results. Searched 190,740 documents.

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Sandstone Dikes and an Estimate of Their Depth of Injection in the Colorado Shales (Cretaceous), Alberta

Dale Leckie, Dan Potocki

CSPG Special Publications

... centimetres above and below the sandstone interbed (Fig. 7). A less common feature of the dikes are thin (1-5 mm), short (<6 cm), tapered offshoots...


Varve-like Deposit in a Solution Channel

W. D. Keller

Journal of Sedimentary Research (SEPM)

... that settling and compaction of each layer had well advanced before there was influx of additional sediment. Certainly tapered arching of laminae over...


Evaluation of Heavy Mineral Separations Using Artificial Samples

John D. Bates, Beth H. Bates

Journal of Sedimentary Research (SEPM)

.... The inner tube was smaller, shorter, tapered, and open at the lower end. Its upper end was held in position by a collar which fitted over the upper end...


Backset Bedding Developed in Shooting Flow in Laboratory Experiments: NOTES

Alan V. Jopling , Everett V. Richardson

Journal of Sedimentary Research (SEPM)

... a few inches to about 1 foot. The backsets occur as tabular deposits, and the inclined bedding occurs in the form of long tapered wedges with the widest...


Turbidite Structures from Barakar Rocks of Ramgarh Coal-field, Bihar, India: NOTES

D. P. Sen

Journal of Sedimentary Research (SEPM)

... of dragging and pushing of these materials along the bottom. The absence of bottom scratches, discontinuity of the structure and the tapered end...


Centrifuge Separation of Heavy Minerals: A New Apparatus: NOTES

J. C. Theron

Journal of Sedimentary Research (SEPM)

... extending downward. A tapered orifice, C, was drilled at the apex. A vent hole, D, was drilled at the rim of A. A cover, E, fits over the inner chamber...


Disaggregation of Sandstones by Ultrasonic Energy: NOTES

W. K. Overbey, Jr., B. R. Henniger

Journal of Sedimentary Research (SEPM)

... of the sample container. A 50 ml centrifuge tube with a tapered bottom produced faster disaggregation than a flat-bottom tube, both 50 ml tubes produced faster...


Spring Peas from New York State: Nucleation and Growth of Fresh Water Hollow Ooliths and Pisoliths

B. Charlotte Schreiber, Denys Smith, Edward Schreiber

Journal of Sedimentary Research (SEPM)

... crystallographic orientation (Fig. 4a). Their bluntly tapered terminations are rhombic (Fig. 4b) and resemble the terminations of magnesian-calcite crystals which...


Section 3: Displays of Seismic Sections: The Japan Trench: Line ORI 78-4

Roland von Huene, Raymond Culotta, Noriyuki Nasu, and Yutaka Aoki

AAPG Special Volumes

... is one of four published records acquired with the JAPEX ship Kaiyomaru using a DSF-V digital system. The source was a tapered array of 16 air guns...


An Inexpensive, Diver-Assisted Percussion Coring Device

Jon C. Cawley, Bruce c. Parker

Journal of Sedimentary Research (SEPM)

... (A). If the internal threads of the bushing plate are tapered, PVC solvent can be applied and the metal pipe forced to thread. This second bushing...


Abstract: Two-stage Blind Deconvolution; #90187 (2014)

Mafijul Islam Bhuiyan and Mauricio D. Sacchi

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.... Wedderburn, 1972, Generalized linear models: Journal of Royal Sta..L. Soc., 135, 370–384. Paparoditis, E. and D. N. Politis, 2001, Tapered block...


A Generalized Inverse Method for Testing Depth-Dependent Extension Models at Highly Extended Continental Margins, #30210 (2011)

Alistair Crosby, Nicky White, Glyn Edwards, Mark Thompson, Richard Corfield, Laura Mackay

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... are smoothed at the join and tapered at each end. Figure 10. Fit to tectonic stratigraphy and strain rates as a function of time for the sedimentary...


Elastic Dislocation Modelling and Coulomb Stress Change Investigations, #41679 (2015).

H. Broichhausen, R. Muir, C. Dunlop, E. Macaulay

Search and

... on both faults is tapered towards the edges Original surface Modelled surface This technique allows the user to investigate the slip orientation...


Petrogenesis of Early Cambrian Reef Limestones, Labrador, Canada

Noel P. James, Colin F. Klappa

Journal of Sedimentary Research (SEPM)

...). Type 3.--This fibrous calcite is a series of nested spindles or elongate, tapered, prismatic domains (Fig. 12A, 12B) smaller than the cones of type 2...


Extending Minas Field Life Through Surfactant-Polymer Flooding

Amin Setyawan, Agus Masduki, Dhani Daradjat, Kris Pedersen, Bruce Smith

Indonesian Petroleum Association

... oil. Stage 2) Follow with a viscous polymer slug as a mobility agent to sweep the oil released by surfactant. Stage 3) Inject a tapered polymer slug...


Old Red Sedimentation in the Solund District, western Norway

T. H. Nilsen

CSPG Special Publications

... surfaces. Relative positions of the blunt and tapered ends of preferentially oriented elongate clasts on bedding surfaces supports the contention...


Evolution of Fold-Thrust-Belt Deformation in the Eastern Indonesia Region

Benyamin Sapiie, Meli Hadiana, Astyka Pamumpuni, Ade Kurniawan, Dicky Daniel

Indonesian Petroleum Association

... the Coulomb wedge theory from (Davis et al., 1983). The Coulomb wedge deforms until it attains a critical taper. A critically tapered wedge that accretes...


Quality Data at a Reduced Price: Innovative Approaches in 3-D Acquisition and Processing

Mars E. Semaan, Michel F. Bee, Maryanto, Gerard Dufourd, Eddy A. Sentani

Indonesian Petroleum Association

... as a tapered zone from CMP 134 at the shallowest time to CMP 153 at a two-way time of 700 ms (solid line on Figure 5). Although it is still at a very...


Old Red Sedimentation in the Solund District, western Norway

T. H. Nilsen

CSPG Special Publications

... surfaces. Relative positions of the blunt and tapered ends of preferentially oriented elongate clasts on bedding surfaces supports the contention...


Albian Pelagic Rhythms (Piobbico Core)

Alfred G. Fischer , Timothy D. Herbert , Giovanni Napoleone , Isabella Premoli Silva , Maurizio Ripepe

Journal of Sedimentary Research (SEPM)

... multi-tapered Fourier spectrum of Berger's precession index for a 1,600,000-year time segment. E) Adaptive multi-tapered Fourier spectrum...


Allochthonous salt initiation and advance in the northern Flinders and eastern Willouran ranges, South Australia: Using outcrops to test subsurface-based models from the northern Gulf of Mexico

Thomas E. Hearon, IV Mark G. Rowan, Katherine A. Giles, Rachelle A. Kernen, Cora E. Gannaway, Timothy F. Lawton, and J. Carl Fiduk

AAPG Bulletin

... unconformities may have up to 90° of angular truncation. Tapered CHS are composed of stacked wedge halokinetic sequences, with folding occurring over a distance...


Mudflow disturbance in latest Miocene forests in Lewis County, Washington

Thomas E. Yancey, George E. Mustoe, Estella B. Leopold, Matt T. Heizler


...) Irregular-noded siderite concretion with iron oxide rind and tapered ends. In situ sample from 15.6 m above base of section. TAMU Wilkes sample #12. D...


An Allostratigraphic Framework for a Retrogradational Delta Complex: The Uppermost Dunvegan Formation (Cenomanian) in Subsurface and Outcrop, Alberta and British Columbia

Michael J. Hay, A. Guy Plint

CSPG Bulletin

... a somewhat more sharply-tapered wedge that thins eastward from 28 m to zero close to 118°W (Fig. 13). Compared to the more linear trend in allomember B...


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