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The AAPG/Datapages Combined Publications Database
Showing 5,195 Results. Searched 200,756 documents.
Textual heterogeneity in massive sandstones from the Grès d'Annot and Numidian Flysch: Implications for depositional processes
Urval S. Patel,, Dorrik A.V. Stow, Andy Gardiner, Jim Buckman
Journal of Sedimentary Research (SEPM)
...., Palaeomagnetism and Diagensis in Sediments: Geological Society of London, Special Publication 151, p. 125– 126. Hand, B.M., 1997, Inverse grading...
2022
Deposit Structure and Processes of Sand Deposition from Decelerating Sediment Suspensions
Esther J. Sumner, Lawrence A. Amy, Peter J. Talling
Journal of Sedimentary Research (SEPM)
... sheared layers is therefore an alternative process for generating the Bouma Tb division. Inverse grading developed at the base of the deposits...
2008
Source location using physics-informed neural networks with hard constraints
Xinquan Huang, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
... allows for direct image extraction of the subsurface using inverse Fourier transform. Numerical tests on the Overthrust model demonstrate...
2022
Geothermal Characteristics of North Jiangsu Basin and its Tectonic Implications
Wang Yi-hua
Circum Pacific Council Publications
..., k: thermal conductivity, grad T: thermal gradient. Thirteen oil layer temperatures are also used, with the method of nonlinear inverse problems...
1990
Distribution of Major and Some Trace Elements of Some Granites from Bangka, Indonesia
J. M. Sitanggang, P. T. Timah
Geological Society of Malaysia (GSM)
... and Rb/Sr ratio are positive but is inverse to the K/Rb ratio. INTRODUCTION The old geological map of the tin-provinces in Indonesia shows at least 15...
1986
Muddy Prodeltaic Hyperpycnites In the Lower Genesee Group of Central New York, USA: Implications For Mud Transport In Epicontinental Seas
Ryan D. Wilson, Juergen Schieber
Journal of Sedimentary Research (SEPM)
..., normal and inverse lamina-set grading, and a reduced intensity and diversity of bioturbation occur in multiple facies types and “interrupt” what...
2014
Use of extended source inversion for estimating the noise level in seismic data
Huiyi Chen, William W. Symes, Susan E. Minkoff
International Meeting for Applied Geoscience and Energy (IMAGE)
... estimation algorithm, coherent noise In Experiment 2 we use the same data as in Experiment 1 (with 30% coherent noise). We solve the inverse problem using...
2022
Resedimented Conglomerates in a Miocene Collision Suture, Hokkaido, Japan
H. Okada, S. K. Tandon
CSPG Special Publications
... conglomerate with major zones of disrupted bedding; (c) conglomerate with clast imbrication, associated with cross-bedded sandstone; (d) inverse...
1984
Characterization and modeling of fault zone fracture swarms and image log fracture interpretations
Abdullah Alhasan, Yahya Qahtani
International Meeting for Applied Geoscience and Energy (IMAGE)
... as the main fracture drivers, and inverse modeling, with image log fracture interpretations as the main driver. After these networks are created, each...
2022
Petrologic Method for Distinguishing Eolian and Marine Grainstones, Ste. Genevieve Limestone (Mississippian) of Indiana: Chapter 4
J. Robert Dodd, Charles W. Zuppann, Clayton D. Harris, Karl W. Leonard, Thomas W. Brown
AAPG Special Volumes
... produced by climbing wind ripples, (2) inverse grading of some of these laminae, (3) rarity of ripple-foreset laminae in climbing-ripple stratification, (4...
1993
ABSTRACT: The Distribution of Xylite in the Coal Beds of Motru-Rovinari Basin (Romania)
Sorin Lory Buliga
The Society for Organic Petrology (TSOP)
... correlations: 1) between the thickness and number of xylite's pieces it establishes an inverse correlation 2) the variations of cumulated thickness...
2001
Sedimentology and Tectonic Implications of Cretaceous Fan-Delta Conglomerates, Queen Charlotte Islands
Roger Higgs
CSPG Special Publications
...; inverse graded beds; normal graded beds; inverse-to-normal graded beds; and parallel-stratified beds. Individual beds are a few centimetres to five metres...
1988
The use of FWI in coal exploration
Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic
Petroleum Exploration Society of Australia (PESA)
... inverse term G AEGC 2018: Sydney, Australia g [G ( p )T G ( p ) ]1 G ( p )T in equation 9 relates the deviation of the data 2 Δd [d g (m(P...
2018
Regional exploration of crustal structures from long-offset OBN data by extended-source FWI
Gaoshan Guo, Stéphane Operto
International Meeting for Applied Geoscience and Energy (IMAGE)
... the nonlinearity of the inverse problem. Moreover, the sparsity of OBN deployments mitigates the fold and can induce aliasing artifacts in the shallow part...
2024
A Century and a Half of Metal Prices with Projections for the Future
Ken Krahulec
Utah Geological Association
... as an inflation index to adjust the historic metal prices (figure 2). The inflation adjustments to the historic prices used in this figure were made by an inverse...
2006
Inexact alternating direction method of multipliers (InADMM) for the acceleration of l2l1 inverse problems
Joaquín A. Acedo, Mauricio D. Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
...Inexact alternating direction method of multipliers (InADMM) for the acceleration of l2l1 inverse problems Joaquín A. Acedo, Mauricio D. Sacchi...
2024
Scale reduction using magnetotellurics a mineral exploration example from the Olympic Domain, South Australia
Stephan Thiel, Kate Robertson, Wenping Jiang
Petroleum Exploration Society of Australia (PESA)
... inverse period T>10 s) or global lightning activity (f>10 Hz) cause magnetic field variations, which act as a source for the induction of electric eddy...
2019
Supporting data-driven exploration in NSW
Keith Gates
Petroleum Exploration Society of Australia (PESA)
... algorithms for 2D geochemical datasets are inverse distance weighting, radial basis functions and, less frequently, kriging. The computation overhead...
2019
EXTENDED ABSTRACT: Gas hydrate deposits in Danube paleodelta: new heat flow approach
Atanas Vasilev, Emanuil Kozhuharov, Nikola Botoucharov, Ivan Genov, Rositsa Pehlivanova, Petar Petsinski, Eva Marinovska
The Society for Organic Petrology (TSOP)
... with the inverse problem theory. The total number of program runs was ~ 50. The output is almost independent of the realistic initial approximations. About 70...
2021
Inverse Graded Bedding in Primary Gypsum of Chemical Deposition
L. Ogniben
Journal of Sedimentary Research (SEPM)
...Inverse Graded Bedding in Primary Gypsum of Chemical Deposition L. Ogniben 1955 Vol. 25 No. 4. (December), The Gypsum formation of the Sulphur...
1955
Computer Modeling of Hydrocarbon Migration Pathways and Fluid Flow Histories from Carbon Isotope Anomalies in Gulf Coast Exploration Wells
D. F. Williams , Lerche , Z. Yu
GCAGS Transactions
... then used the data generated in conjunction with the inverse calculations to extract the pertinent parameters (output variables). Finally, we compared...
1991
Reversing the Decline - What Contributes to Quality Assessment for Enhanced Oil Recovery Projects?
Eugene E. Wadleigh
Wyoming Geological Association
... of the inverse bond number. The bond number is a dimensionless ratio of capillary and fluid density forces. The bond number can be used to characterize...
2003
Geometry and Internal Characteristics of Archaean Submarine Channel Deposits, Pilbara Block, Western Australia
Kenneth A. Eriksson
Journal of Sedimentary Research (SEPM)
...-shale. Unitary upper-fan channel deposits are recognizable in the conglomerate-sandstone-shale facies association. The channel deposits consist of inverse...
1982
Traction-Carpet Stratification in Turbidites-Fact or Fiction?
Richard N. Hiscott
Journal of Sedimentary Research (SEPM)
... of Science Transactions, v. 42, p. 57-96. HAND, B.M., AND ELLISON, L.B., 1985, Inverse grading in density-current deposits(abstract): SEPM Mid-Year Meeting...
1994
Traction-Carpet Stratification in Turbidites--Fact or Fiction?: REPLY
Richard N. Hiscott
Journal of Sedimentary Research (SEPM)
... profile would not develop inverse grading. Grain interaction effects in such a sheared layer would certainly lead to inverse grading within the dispersion...
1995