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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,619 documents.
Structure of the Outer Convergent Margin Off Kodiak Island, Alaska, from Multichannel Seismic Records: Convergent Margins
Roland Von Huene
AAPG Special Volumes
... slope and mid-slope terrace areas are summarized by a least-squares curve (Fig. 4, dashed line), shown with a similar curve based upon more data...
1979
The Connected Pore Space Paradigm: An Evaluation of the Effect of Crushing on Pore Volume and Structure
James Greene, Jorge Viamontes, Britt Hill
Unconventional Resources Technology Conference (URTEC)
... to the experimental data between closure and intrusion pressures using least-squares relative error regression (Figure 3). Between these pressures, confining pressure...
2020
Sediments of Charlotte Harbor, Southwestern Florida
Ter-Chien Huang, H. G. Goodell
Journal of Sedimentary Research (SEPM)
... the linear to quintic equations were computed using least squares. These polynomials represent surfaces of best fit. Standard regression techniques...
1967
Investigation of Diffusion and Sorption in Shale Under Variable Net Stress
Ye Lyu, Devang Dasani, Theodore Tsotsis, Kristian Jessen
Unconventional Resources Technology Conference (URTEC)
... loading experiments by a non-linear least squares approach (Levenberg-Marquardt algorithm). We selected loading exp #2 for this purpose due to the more...
2021
Strontium Isotope Compositions of Non-marine Carbonate Rocks from the Beacon Supergroup of the Transantarctic Mountains
Gunter Faure, Peter J. Barrett
Journal of Sedimentary Research (SEPM)
... rocks: A summary--2: New Zealand Jour. Geology and Geophysics, v. 8, No. 2, p. 221-230. YORK, D., 1966, Least squares fitting of a straight line. Canadian...
1973
Storm-dominated Sedimentation on the Inner Shelf of the Canadian Beaufort Sea
Philip R. Hill , Odette C. Nadeau
Journal of Sedimentary Research (SEPM)
... of the transmissometer was obtained, despite the wide range of concentrations. Least squares regression analysis shows a linear relationship (Fig. 2...
1989
Equilibrium of Form and Forces in Tidal Basins of Coast of Texas and Louisiana
W. Armstrong Price
AAPG Bulletin
... the least squares method because 1:1 is a simpler line to compute, it begins at the origin and is so near the theoretical best line that it requires more...
1947
Solving the puzzle of the bivalve shell fragment: inferring the original abundance and size frequency from the fragmented record
Eric N. Powell
PALAIOS
...; Warton et al. 2006; least normal squares method of Troutman and Williams 1987) to define the regression parameters: lengthwidth, length-thickness, width...
2020
Three-dimensional geomechanical modeling for constraint of subseismic fault simulation
Laurent Maerten, Paul Gillespie, Jean-Marc Daniel
AAPG Bulletin
..., D., P. R. Cobbold, P. Szatmari, S. Demerican, D. Coelho, and J. A. Rici, 1993, Least-squares palinspastic restoration of region of normal...
2006
Transverse Ribs: Their Characteristics, Origin and Paleohydraulic Significance
Emlyn H. Koster
Dallas Geological Society
..., 1961). Inter-relationships of Rib Parameters On the assumption that ribs are formed in association with antidunes, use of least-squares regression...
1977
Testing evolutionary dynamics on first lower molars of Pliocene Ogmodontomys (Arvicolidae, Rodentia) from the Meade Basin of southwestern Kansas (USA): A landmark-based approach
Federica Marcolini, Paolo Piras, Robert A. Martin
PALAIOS
..., USA. ROHLF, F.J., and CORTI, M., 2000, Use of two-block partial least-squares to study covariation in shape systematic biology: Systematic Biology...
2009
Transverse Ribs: Their Characteristics, Origin and Paleohydraulic Significance
Emlyn H. Koster
CSPG Special Publications
..., 1961). Inter-relationships of Rib Parameters On the assumption that ribs are formed in association with antidunes, use of least-squares regression...
1977
Averaging Predictions of Rate-Time Models Using Bayesian Leave-Future-Out Cross-Validation and the Bayesian Bootstrap in Probabilistic Unconventional Production Forecasting
Leopoldo M. Ruiz Maraggi, Larry W. Lake, Mark P. Walsh
Unconventional Resources Technology Conference (URTEC)
... of production of all wells (violet dashed line), the average least-squares estimate, and the average P10 (red line), P50 (green line), and P90 (yellow line...
2021
Introduction to Fractals
Roy E. Plotnick
Special Publications of SEPM
... the Richardson plot for coastline length versus size of the measuring "yardstick;" the slope of the least-squares fit is 0.27, yielding a fractal...
1995
Photogrammetry of sequence and bioherm morphology in the Paradox Formation, Utah, U.S.A.: A test of the coherence of Pennsylvanian (Moscovian) glacio-eustatic sea-level change
Elizabeth Allen Johnson, M. Elliot Smith, Gary L. Gianniny, Paul J. Umhoefer
Journal of Sedimentary Research (SEPM)
... in overlapping images, and uses a least-squares regression to calculate camera positions, from which high-resolution 3D models of the target object...
2021
The Rise and Fall of Eustasy
Christopher G. St. C. Kendall, Ian Lerche
Special Publications of SEPM
... is correct: the parameters are chosen to give a minimum least-squares mismatch to the crustal curve. The error limits of this method are not estimated...
1988
A Study of the Relations of Depth, Porosity and Clay Mineral Orientation in Pennsylvanian Shales
Mack Gipson, Jr.
Journal of Sedimentary Research (SEPM)
... estimations of the degree of association between two variables, or least squares methods. Correlation coefficients, simple and partial, were employed...
1966
A New Fracture Parameters Inversion Model Based on the Pressure of Shut-In Under Pressure-Dependent Leak-Off Conditions
Xiaodong Hu, Zhiyong Tu, Shou Ma, Mingming Liu, Fujian Zhou, Shu Jing
Unconventional Resources Technology Conference (URTEC)
... coefficient, fluid efficiency, fracture length, and fracture width) of PDL. Meanwhile, combined with the least square method, the dimensionless pressure...
2022
Mapping of salt structures and related fault lineaments based on remote-sensing and gravimetric data: The case of the Monte Real salt wall (onshore west-central Portugal)
Fernando Carlos Lopes, Alcides Jose Pereira, Vasco Manuel Mantas
AAPG Bulletin
... geophysical data. Agocs, W. B., 1951, Least squares residual anomaly determinations: Geophysics, v. 16, p. 686696, doi:10.1190/1.1437720.Almeida, C., J. J. L...
2012
Turbulent Flow
Gerard Middleton, John B. Southard
Special Publications of SEPM
...) is shown by the straight line, with A = 2.43 and B' = 8.56 obtained by a least-squares fit. Included are 8 profiles from 4 sand-lined pipes...
1984
Formation of Lateral Patterns In Rock Properties By Dolomitization: Evidence From A Miocene Reaction Front (Bonaire, Netherlands Antilles)
David A. Budd, Whitney D. Mathias
Journal of Sedimentary Research (SEPM)
...–permeability cross plot for limestones and dolostones. Solid lines are least-squares linear regressions. Fig. 9. Lateral variation in porosity...
2015
A general model for growth trajectories of linear carbonate platforms
Nicolas Goudemand,, Pulkit Singh, Jonathan L. Payne
Journal of Sedimentary Research (SEPM)
.... The observed trajectories of the platform margins with respect to time in each of these examples can be fitted using a nonlinear least squares fit (nls...
2020
Pleistocene Shallowing-Upward Sequences in New Providence, Bahamas: Signature of High-Frequency Sea-Level Fluctuations in Shallow Carbonate Platforms
Marc Aurell , Donald F. McNeill , Thierry Guyomard , Pascal Kindler
Journal of Sedimentary Research (SEPM)
... normal or reversed polarity. The inclination angle was calculated using the least-squares method of Kirschvink (1982). Because the core was unoriented...
1995
Laboratory Study of Gas and Water Flow in the Nordland Shale, Sleipner, North Sea
J. F. Harrington, D. J. Noy, S. T. Horseman, D. J. Birchall, R. A. Chadwick
AAPG Special Volumes
... of the specimen), Figure 8, it is possible to estimate capillary pressure required to initiate gas flow. Least-squares linear extrapolation of the flow...
2009
Correlation of Terrestrial Climatic Fluctuations with Global Signals During the Upper Cretaceous–Danian in a Compressive Setting (Provence, France)
Isabelle Cojan, Marie-Gabrielle Moreau
Journal of Sedimentary Research (SEPM)
... specimens, most of which come from the Vitrolles section, no direction could be calculated by means of least-squares regression because demagnetization...
2006