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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,630 documents.
Pore structure of sediments from Green Canyon 955 determined by mercury intrusion
Hugh Daigle, Yi Fang, Stephen C. Phillips, and Peter B. Flemings
AAPG Bulletin
... shapes. Using nonlinear least squares optimization, we were able to fit this model to our data successfully at low capillary pressures, but the results...
2022
Bed Configurations
Gerard Middleton, John B. Southard
Special Publications of SEPM
..., then if we take profiles of the bed surface and the water surface and fit the "best" straight line to them, by some method like least squares...
1984
Two Contrasting Kinematic Styles of Active Folding Above Thrust Ramps, Western Taiwan
Li-Fan Yue, John Suppe, Jih-Hao Hung
AAPG Special Volumes
... 16B) show a linear relationship indicating an excellent least-squares shortening of = 1686 113 m (5531 371 ft) (Figure 16B2), which agrees...
2011
Mantle Creep: Elasticoviscous Versus Modified Lomnitz Law, and Problems of "The New Global Tectonics"
Paul S. Wesson
AAPG Bulletin
... in the moon. A least-squares fit of crater data in the manner of Baldwin (1949) does show some indication of a 1-2-km bulge, but the isostatic compensation...
1972
Characteristics of Microzonation Modelling in Reservoir Evaluation
Search and Discovery.com
N/A
Testing Laramide Hypotheses for the Colorado Front Range Arch Using Minor Faults
Eric A. Erslev, Scott M. Larson
Rocky Mountain Association of Geologists
... precise (reproducible) than the Angelier (1990) method whose least-squares algorithm for determining the reduced stress tensor can overly weight...
2006
Comparison of Quantitative Mineral Analysis By X-Ray Diffraction and Fourier Transform Infrared Spectroscopy
Paul R. Craddock, Michael M. Herron, Susan L. Herron
Journal of Sedimentary Research (SEPM)
.... Quantitative mineral analysis by FTIR is enabled using a generalized least-squares inversion against a library of mineral standards with unique IR spectra...
2017
Thermal History and Diagenesis of the Wilrich Member Shale, Spirit River Formation, Northwest Alberta
Cathy A. Connolly
CSPG Bulletin
... in the Deep Basin during the epeirogenic uplift subsequent to the Laramide Orogeny is approximately 2000 m. This value is based on the least squares...
1989
Integrating Model Uncertainties in Probabilistic Decline Curve Analysis for Unconventional Oil Production Forecasting
Aojie Hong, Reidar B. Bratvold, Larry W. Lake, Leopoldo M. Ruiz Maraggi
Unconventional Resources Technology Conference (URTEC)
... it appears because the meaning of “best” is not well defined. In many applications, the model that can best fit the data in a least squares sense...
2018
Graphical Techniques for the Analysis and Display of Logging Information: Chapter 2
John H. Doveton
AAPG Special Volumes
... interpretation in hard rock formations: Geobyte, v. 2, no. 3, p. 44-47. Etnyre, L. M., 1984a, Practical application of weighted least squares method...
1994
Direct estimation of fault trajectory from structural relief
Nathan W. Eichelberger, Alan G. Nunns, Richard H. Groshong Jr., and Amanda N. Hughes
AAPG Bulletin
...) and footwall (zf) depths are plotted for comparison. A least-squares regression through the pregrowth horizons gives the displacement (d) and fault depth...
2017
High-Temperature Saline (Thermoflux) Dolomitization of Devonian Swan Hills Platform and Bank Carbonates, Wild River Area, West-Central Alberta
Jack Wendte, Jeffrey J. Dravis,, Lavern D. Stasiuk, Hairuo Qing, Shelley L. O. Moore, Grant Ward
CSPG Bulletin
... versus 18O and F. 87Sr/86Sr versus 13C for both limestone-hosted (LS) and dolostone-hosted (DOL) saddle dolomite (SD) cements. Least squares...
1998
Influence of beach morphodynamics on the distributions of the opheliid polychaete Euzonus sp. and its feeding burrows on a sandy beach: Paleoecological and paleoenvironmental implications for the trace fossil Macaronichnus segregatis
Koji Seike
PALAIOS
... a least squares method, and the resulting R2 and P values were calculated from data from of the Hasaki Coast. A) Foreshore. B) Euzonus sp. C) Feeding...
2009
GEOLOGY OF THE TALLADEGA BELT IN THE HIGHTOWER REENTRANT, CLEBURNE COUNTY, ALABAMA
Denny N. Bearce
Alabama Geological Society
..., v. .12, p. 1-65. Wright, T.L, an Doherty, P.C., 1970 A linear programming and least squares computer method for solving petroWright, T.L, anddDoherty...
1979
Geological Processes and Sedimentation Rates of Wind-Tidal Flats, Laguna Madre, Texas
Robert A. Morton, Charles W. Holmes
GCAGS Transactions
... for 210Pb. The sedimentation rate can be obtained graphically from the mean slope determined by a least-squares best fit. For our analyses, the best-fit...
2009
Geometric Analysis of the Reed Wash Detachment Fold Train, West Flank of San Rafael Swell, Utah.
Vickye R. Velez
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... of the fold train. The best fitting plane for these x-y-z data was found by least-squares regression in which z was considered the dependent variable...
2004
Depositional Sequences And Stratigraphy of the Colón Carbonate Platform: Bocas Del Toro Archipelago, Panama
Donald F. McNeill, James S. Klaus, Laura G. O'Connell, Anthony G. Coates, William A. Morgan
Journal of Sedimentary Research (SEPM)
.... 325– 355. Kirschvink, J.L., 1980, The least-squares line and plane and the analysis of paleomagnetic data: Geophysical Journal International, v. 152...
2013
Pore-Size Dependence of Fluid Phase Behavior and the Impact on Shale Gas Reserves
B. Rahmani Didar, I.Y., Akkutlu
Unconventional Resources Technology Conference (URTEC)
... on this figure was found by least squares fitting and critical pressure was found by using an equation similar to the Antoine’s equation: ln Pc...
2013
BIOGEOGRAPHIC SHELL SHAPE VARIATION IN TROPHON GEVERSIANUS (GASTROPODA: MURICIDAE) ALONG THE SOUTHWESTERN ATLANTIC COAST
MARIANO E. MALVÉ, MARCELO M. RIVADENEIRA, SANDRA GORDILLO
PALAIOS
... resolution, available at http://www.oracle. ugent.be/). The residuals of ordinary least-squares regressions between PC1 and PC2 versus sea surface...
2018
Triassic Remagnetization of Lower Paleozoic Rocks, Bear River Range, Utah-Idaho: A Possible Constraint on Thermal History
Stephen L. Gillett, Michael E. Taylor
Utah Geological Association
... from the Oneonta Dolomite, upper Mississippi River Valley: Journal of Geophysical Research (in press). Kirschvink, J. L., 1980, The least-squares line...
1985
Imaging the Colorado Plateau - Basin and Range Transition Zone Using Basalt Geochemistry, Geochronology and Geographic Information Systems
Reina F. Downing, Eugene I. Smith, Richard L. Orndorff, Terry L. Spell, Kathleen A. Zanetti
Pacific Section of AAPG
... of Geophysical Research, v. 101, p. 17,425-17,445. York, D., 1969, Least squares fitting of a straight line with correlated errors: Earth and Planetary...
2001
Rapid diagenesis and microbial biosignature degradation in spring carbonates from Crystal Geyser, Utah, U.S.A.
Jon Lima-Zaloumis, Jack D. Farmer, Elizabeth Trembath-Reichert
Journal of Sedimentary Research (SEPM)
...). Compositional maps were generated using a classical least-squares (CLS) fitting algorithm in LabSpec6. For this method, two mineralogical endmembers...
2024
Identification and Initial Correlation of Magnetic Reversals in the Lower to Middle Ordovician of Northern Arkansas
M. Randy Farr, Donald R. Sprowl, Jordan Johnson
Special Publications of SEPM
... sections and to the lower to middle St Peter Sandstone in one sec vectors using were cal the least squares I980 RESULTS Demagnetization Behavior...
1993
Magnetostratigraphic, Biostratigraphic, and Lithologic Correlations in Triassic Strata of the Western United States
Maureen B. Steiner, Micheal Morales, Eugene M. Shoemaker
Special Publications of SEPM
... of characteristic tion were determined for each sample by fitting direc magnetiza lines to the demagnetization paths using the least squares...
1993
A One-Dimensional, Two Phase Model of Overpressure Generation in the Venture Gas Field, Offshore Nova Scotia
Brett S. Mudford
CSPG Bulletin
... line represents the least squares regression line used for the permeability-porosity relation in our model. Figure 5. Plot of sandstone porosity versus...
1990