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The AAPG/Datapages Combined Publications Database
Showing 1,264 Results. Searched 200,630 documents.
Calculation of Paleosalinities from Boron and Clay Mineral Data
Elton L. Couch
AAPG Bulletin
... to expect. One disadvantage to smoothing data as in Figure 5 is the occasional loss of significant information on one or two samples. This is true...
1971
Geophysical Illusions of Continental Drift: A DISCUSSION
Robert S. Dietz , John C. Holden
AAPG Bulletin
..., subsidence of the lithospheric plate (Menard, 1969). Some tectonic smoothing of the topography also may occur, but most of the smoothing is due to covering...
1973
-- no title --
Ehsan, Athar
Search and Discovery.com
..., at spacing of 20m. The initial model for the inversion is obtained by smoothing the true velocity model using the multi-dimensional triangular smoothing...
Unknown
Abstract: 3D Time Domain Full Waveform Inversion Based on Multiscale Adapted Variable Grid Method Case Study Majunga Basin East African Coast; #91204 (2023)
Mukiibi Ssewannyaga Ivan, Jian-Ping Huang, Zi-Ying Wang, Jidong Yang, Jin Keji
Search and Discovery.com
... maintained. The model grid size for simulation 400×105×50 grid points, at spacing of 20m. The initial model for the inversion is obtained by smoothing...
2023
Earthquake Hazards and Tectonic History of the San Andreas Fault Zone, Los Angeles County, California
Allan G. Barrows, James E. Kahle, David J. Beeby
Pacific Section of AAPG
... elevation. Can be caused by predominantly lateral offset, particularly on sloping surfaces, or may be the result of vertical or oblique readjustments...
1987
The Permian Triassic transition in the central coastal plain of Israel (North Arabian Plate Margin), David 1 Borehole
Dorit Korngreen, Olga Orlov-Labkovsky, Or Bialik, Chaim Benjamini
PALAIOS
... surfaces are common. Proximal transport processes yield mixed coarse, unsorted, angular grains in a wackestone or packstone proximal transport facies...
2013
Geology of Texas Panhandle Oil and Gas Field
Henry Rogatz
AAPG Bulletin
... follows a very definite plan. The relationship which does exist is between the porous formations and the surfaces formed by the gas, oil, and water...
1939
Turbulent Flow
Gerard Middleton, John B. Southard
Special Publications of SEPM
... of a fluid is fusive effect is the dominant one. simply a measure of the effectiveness of molecular motions and/or molecular attractions in smoothing out...
1984
Environmental Factors Controlling the δ13C and δ18O Variations of Recent Fluvial Tufas: A 12-Year Record from the Monasterio de Piedra Natural Park (Ne Iberian Peninsula)
M. Cinta Osácar, Concha Arenas, Marta Vázquez-Urbez, Carlos Sancho, Luis F. Auqué, Gonzalo Pardo
Journal of Sedimentary Research (SEPM)
.... The anomalous values recorded for both the water and the tufa-calcite oxygen isotope composition during a two-year period are characterized by smoothing...
2013
Flow Simulation of Complex Fracture Systems With Unstructured Grids Using the Fast Marching Method
Changdong Yang, Xu Xue, Michael J. King, Akhil Datta-Gupta
Unconventional Resources Technology Conference (URTEC)
...erformed numerical differentiation with smoothing to obtain 𝑤(𝜏). However, due to reservoir heterogeneity, such a calculation for 𝑤(𝜏) is usual...
2017
Estimating Oil-Water Relative Permeability Curves Using Digital Rock Physics
Christopher J. Landry, Maša Prodanović, Rob Reed, Peter Eichhubl, Kishore Mohanty
Unconventional Resources Technology Conference (URTEC)
... are segmented into binary images of pore and solid. The image segmentation procedure outlined here starts by first smoothing the image noise using...
2017
A Triassic, Jurassic and Cretaceous Time Scale
Felix M. Gradstein, Frits P. Agterberg, James G. Ogg, Jan Hardenbol, Paul van Veen, Jacques Thierry, Zehui Huang
Special Publications of SEPM
... biozonations. Interpolation techniques to arrive at a geochronology include maximum likelihood estimation, smoothing cubic spline fitting...
1995
Avulsion Frequency, Avulsion Duration, and Interavulsion Period of Holocene Channel Belts in the Rhine-Meuse Delta, the Netherlands
Esther Stouthamer, Henk J.A. Berendsen
Journal of Sedimentary Research (SEPM)
... that were dated by the AMS 14C method a smoothing parameter s = 50 was used and for the bulk samples a smoothing parameter s = 200 was used. These values...
2001
Quantitative biostratigraphy of the Taranaki Basin, New Zealand: A deterministic and probabilistic approach
Roger A. Cooper, James S. Crampton, J. Ian Raine, Felix M. Gradstein, Hugh E. G. Morgans, Peter M. Sadler, C. Percy Strong, David Waghorn, Graeme J. Wilson
AAPG Bulletin
... weighted regression and smoothing scatterplots: Journal of American Statistics Association, v. 74, p. 829-836. Cooper, R. A., and K. Lindholm, 1990...
2001
Outer-Fan Lobes of the Lower to Middle Eocene Juncal Formation, San Rafael Mountains, California
Timothy J. Thompson
Pacific Section SEPM
... and/or the rate of basinal subsidence decreased) which led to a progressive reduction of seafloor relief. This bathymetric smoothing eventually allowed...
1988
Decline of Great Basin, Southwestern United States
J. Edmund Eaton
AAPG Bulletin
... smoothing erosive touches were put upon the Great Basin district. The district was in these times so low and so nearly base leveled that it ceased...
1932
Recent Relative Sea-Level Change in Eastern North America
Barbara V. Braatz, David G. Aubrey
Special Publications of SEPM
... surfaces are warped to fit the tide-gauge data, which can introduce errors due to nonsynchronous leveling and tide-gauge data, as well as excessive...
1987
Natural History of the Gulf Coast Crude Oil: Part II. Origin and Evolution of Petroleum: Group 3. Variation in Physical Properties
Donald C. Barton
AAPG Special Volumes
... by the graphs for 3,0000, 4,000, and 5,000 feet and, with smoothing of the kink, the tendency can be seen to be indicated by the graphs for the surface, 1,000...
1934
Compositional variation in modern estuarine sands: Predicting major controls on sandstone reservoir quality
Joshua Griffiths, Richard H. Worden, Luke J. Wooldridge, James E. P. Utley, and Robert A. Duller
AAPG Bulletin
...., and G. M. Philip, 1985, Comment on “A nonlinear empirical prescription for simultaneously interpolating and smoothing contours over an irregular grid...
2019
An Economic Analysis of the Oil and Gas Resources in the Clinton Formation of Ohio
J. T. CumberlidgeW. D. McCullough
Ohio Geological Society
.... As a final smoothing step, the median values of each year of annualized daily production were fitted to an exponential decline...
1985
Physics-directed unsupervised machine learning: Quantifying uncertainty in seismic inversion
Sagar Singh, Yu Zhang, David Thanoon, Pandu Devarakota, Long Jin, Ilya Tsvankin
International Meeting for Applied Geoscience and Energy (IMAGE)
... acoustic impedance model constructed by smoothing the actual model. We utilize a dynamic learning rate methodology that has a starting value of 0.001...
2022
The Main Relationships Between the Changes in Marine Fauna at the Close of the Permian and the Beginning of the Triassic
A. S. Dagis, V. I. Ustritsky
CSPG Special Publications
... Permian time, when only about ten genera existed, most of them being characterized by distinct recurrent features such as smoothing out of the ribs...
1973
An Empirical Approach to Evaluating Regional Seal Capacity and Hydrocarbon Migration Characteristics in South-Eastern Australia
G. W. O'Brien, D. Heggie, G. Lawrence, A. Williams
Petroleum Exploration Society of Australia (PESA)
... and interpreted for this study. SAR data can map oil slicks by detecting the smoothing or calming effect that liquid hydrocarbons have on wind-induced rippling...
2001
Geothermal Exploration in West Java
Solia Wiradiradja, Surahman Suari, Yunus Razali, L. Pekar
Indonesian Petroleum Association
... dispersion of values, which is however, probably due to lateral variations. Smoothing a little the data and neglecting the surprisingly high values near...
1976
Deep-learning application of salt geometry detection in deep water Brazil
Ruichao Ye, Anatoly Baumstein, Kirk A. Wagenvelt, Erik R. Neumann
International Meeting for Applied Geoscience and Energy (IMAGE)
... applying Gaussian smoothing and rescaling by 𝑽 𝒑 − 𝑽 𝒘𝒂𝒕𝒆𝒓 𝒚𝐕 = . 𝑽 𝑺𝒂𝒍𝒕 − 𝑽 𝒘𝒂𝒕𝒆𝒓 By taking advantage of the multi-label...
2022