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The AAPG/Datapages Combined Publications Database
Showing 1,462 Results. Searched 196,217 documents.
Reflections on Geostatistics and Stochastic Modeling
D. E. Myers
AAPG Special Volumes
... maximum likelihood nor weighted least squares do a good of job of detecting the different components in a nested model (or even the need for one...
2006
Geostatistical Modeling of the Spaces of Local, Spatial, and Response Uncertainty for Continuous Petrophysical Properties
P. Goovaerts
AAPG Special Volumes
... otherwise. Conditional cumulative distribution function values can thus be estimated by least-squares (kriging) interpolation of indicator transforms...
2006
Borehole Electrical Images as a Reservoir Characterization Tool in the Merecure Formation, Guarico 13 Field, Eastern Venezuela
Helena Gamero, Carmen Contreras, Pieter Pestman, Akira Mizobe
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
...-yellow). 623 Figure 3. Diagram illustrating a dip computation. These are computed using a least-squares fit through a minimum of three selected...
2000
Petrology of the Shelburne and Barrington Passage Plutons, Southern Nova Scotia
H. Dean Rogers, Sandra M. Barr
Atlantic Geology
... LaTour, Nova Scotia. B.Sc. Honours thesis, Acadia University, Wolfville, Nova Scotia. YORK, D. 1969. Least squares fitting of a straight line...
1988
Superposed Late Paleozoic thermal events in the southwestern Meguma Terrane, Nova Scotia
R. D. Dallmeyer, J. D. Keppie
Atlantic Geology
... University, Wolfville, Nova Scotia. YORK, D. 1969. Least squares fitting of a straight line with correlated errors. Earth and Planetary Science Letters...
1988
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
Preservation of Autogenic Processes and Allogenic Forcings in Set-Scale Aeolian Architecture I: Numerical Experiments
Travis Swanson, David Mohrig, Gary Kocurek, Benjamin T. Cardenas, Matthew A. Wolinsky
Journal of Sedimentary Research (SEPM)
..., and are found by a nonlinear least-squares fitting of an-exponential-growth-to-saturation model, , where the variables s and represent the time-series...
2019
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 Biota and Biological Processes of the Continental Slope
Gilbert T. Rowe, Richard L. Haedrich
Special Publications of SEPM
... and their the broadest depth gradient has Rowe 1971b Rowe et ai 1974 least squares regressions Although some can be put in predictions...
1979
The Use of Computer Prepared Residual Maps as an Aid in Determining Sedimentary Environments of the Muddy Formation, Northeastern Wyoming
R.L. Egbert, E.F. Armstrong
Rocky Mountain Association of Geologists
... by the least squares method as described data the l e a s t squares a s described by Dillon, 1967. The transgressive nature of transgressive nature...
1970
Magnitude-rupture area scaling derived from global earthquakes of moderate to large sizes: Implications for seismic hazards in Indonesia
Tjipto Prastowo, Gandhis Putri Ayudia, Hilda Risanti
Geological Society of Malaysia (GSM)
... and Thingbaijam et al. (2017) appears is that they utilised orthogonal regressions instead of least-squares regressions, as is the case in this study. Another...
2022
Origin of Transverse Faulting, Rocky Mountain Front Ranges, Canmore, Alberta
Ian W. Moffat,, John H. Spang
CSPG Bulletin
... least-squares cylindrical fold axes. End_Page 155------------------------ that transverse faults and minor reverse faults, as well as one...
1984
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
Evaluating the Use of Average Composite Sections and Derived Correlations in the Graphic Correlation Technique
Kenneth C. Hood
Special Publications of SEPM
... is Miller 1977 who recommended that LOCs be positioned subjectively by operator judgment rather than by least squares regression to accommodate greater...
1995
Burial and Temperature History of Gas Generation from Coaly Organic Matter in the Late Cretaceous Mesaverde Formation and Associated Rocks in the Deeper Portions of the Wind River Basin, Wyoming
C. E. Barker, B. L. Crysdale
Wyoming Geological Association
... versus depth for wells in the WHCS data base through 1991, Wind River Basin, Wyoming. The solid line shows a least squares regression fit for depth...
1993
Folding-related Fracture Pattern and Physical Properties of Rocks in the Chaudrons Ramp-related Anticline (Corbires, France)
Stefano Tavani, Laurent Louis, Christine Souque, Philippe Robion, Francesco Salvini, Dominique Frizon de Lamotte
AAPG Special Volumes
...). To rule out, or at least significantly reduce, the influence of lithology, we collected mesostructural data and samples in the Vitrollian formation...
2004
Causes of Multiple Magnetizations in the Devonian Upper Member, Wabamun Group, Alberta, Canada: Fluid Flow and Diagenesis?
M. T. Cioppa, I. S. Al-Aasm, D. T. A. Symons, K. P. Gillen
AAPG Special Volumes
... Canada Sedimentary Basin: Canadian Society of Petroleum Geologists and Alberta Research Council, p. 203220.Kirschvink, J. L., 1980, The least-squares...
2004
The control of hydrothermal dolomitization and associated fracturing on porosity and permeability of reservoir facies of the Upper Devonian Jean Marie Member (Redknife Formation) in the July Lake area of northeastern British Columbia
Jack Wendte, Alan Byrnes, David Sargent
CSPG Bulletin
... with advancing dolomite content up to 50%. The least squares regression line has a correlation coefficient of over 0.99. The sample population of 4431 full...
2009
Application of Lopatin's Method to Determine Burial History, Evolution of the Geothermal Gradient, and Timing of Hydrocarbon Generation in Cretaceous Source Rocks in the San Juan Basin, Northwestern New Mexico and Southwestern Colorado
Wendell A. Bond
Rocky Mountain Association of Geologists
... the line shown in Figure 3 is a least squares fit to the resulting loglog plot of l versus Ro. For comparison, T I Figure 3 also shows the line taken from...
1984
Isotopic Ages and Stratigraphic Control of Mesozoic Igneous Rocks in Japan
Ken Shibata , Tatsuro Matsumoto , Takeru Yanagi , Reiko Hamamoto
AAPG Special Volumes
... at the island arc: Kyushu Univ. Fac. Sci. Mem. ser. D, v. 22, p. 37-98. York, D., 1966, Least-squares fitting of a straight line: Canadian Jour. Phys., v. 44, p...
1978
Seismic Refraction and Reflection Studies in the Timor-Aru Trough System and Australian Continental Shelf: Convergent Margins
R. S. Jacobson , G. G. Shor Jr. , R. M. Kieckhefer , G. M. Purdy
AAPG Special Volumes
... variations from a sloping datum were in the second layer. Travel times were fitted to straight lines by a least-squares solution that requires that reverse...
1979
Real-Time Hydraulic Fracture Optimization Based on the Integration of Fracture Diagnostics and Reservoir Geomechanics
Panagiotis Dalamarinis, Paul Mueller, Dale Logan, Jason Glascock, Stephen Broll
Unconventional Resources Technology Conference (URTEC)
... geometries, a Ridge Regression model was fit to the data. The main advantage of Ridge Regression over Ordinary Least Squares (ODL...
2020
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
Modeling and Optimization of Proppant Distributions in Multi-Cluster Hydraulic Fracture-Natural Fracture (HF-NF) Networks
Yidi Wu, George J. Moridis, Thomas A. Blasingame
Unconventional Resources Technology Conference (URTEC)
...o minimize the cost function. To URTeC 5471 9 perform this optimization, the stochastic gradient descent and back propagation methods is impl...
2021
Geophysical Evidence for Ancient Sea-Floor Spreading from Alpha Cordillera and Mendeleyev Ridge: Evolution of Arctic Ocean Basin
John K. Hall
AAPG Special Volumes
... ( = 3.15). A proposed history for the Amerasian basin since late Precambrian time suggests that the basin was affected by spreading at least once...
1973