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The AAPG/Datapages Combined Publications Database

Showing 1,264 Results. Searched 200,630 documents.

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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

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