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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,619 documents.
Calcite and Aragonite Precipitation Under Controlled Instantaneous Supersaturation: Elucidating the Role of CaCO3 Saturation State and Mg/Ca Ratio on Calcium Carbonate Polymorphism
Vionette De Choudens-Sanchez, Luis A. Gonzalez
Journal of Sedimentary Research (SEPM)
... of Regression Equations.—Regression equations were calculated using least-squares regressions, and χ2 goodness of-fit-testing indicate that all...
2009
STRATIGRAPHIC AND STRUCTURAL RELATIONSHIPS OF THE EASTERN TALLADEGASLATE BELT OF ALABAMA
James F. Tull
Alabama Geological Society
.... 1-65. Wright, T.L, an Doherty, P.C., 1970 A linear programming and least squares computer method for solving petroWright, T.L, anddDoherty, P.C., 1970...
1979
Domba Conglomerate, Devonian, Norway: Process and Lateral Variability in a Mass Flow-Dominated, Lacustrine Fan-Delta
W. Nemec, R. J. Steel, S. J. Poreebski, Å. Spinnangr
CSPG Special Publications
... = number of data). The thick oblique line with corresponding equation is a least-squares regression line fitted to the data (r = linear correlation...
1984
Lithology and reservoir properties of the Delaware Mountain Group of the Delaware Basin and implications for saltwater disposal and induced seismicity
Katie Smye, D. Amy Banerji, Ray Eastwood, Guin McDaid, Peter Hennings
Journal of Sedimentary Research (SEPM)
... by interpolating between well data points using a least-squares method. While differentiating reservoir sandstones and mapping their distribution...
2021
Sedimentology and Depositional Environments of the Emery Sandstone Member of the Mancos Shale, Emery and Sevier Counties, Utah
J. Paul Matheny, M. Dane Picard
Rocky Mountain Association of Geologists
.... mean grain size. Grain size limits and sorting values are shown. Line A (y = .15x-.175, correlation coefficient = 33) is a least squares fit. Line 6 (y...
1985
Rain-Lahar Generation and Sediment Delivery Systems at Mayon Volcano, Philippines
Kelvin S. Rodolfo, A. Tevfik Arguden
Special Publications of SEPM
... is presumed to have been equal at both sites Upper right panel Triggering rainfall versus duration The line is a least squares fit r 0 68 for the 16...
1991
Chapter 7: Curie Point Depths in Northwestern South America and the Southwestern Caribbean Sea
Carlos A. Vargas, Javier Idarraga-Garcia, Juan M. Salazar
AAPG Special Volumes
... of the power spectrum density and linearization by the least squares method, and 1w1 and 1w2 represent the boundary values of the wavelengths that allow...
2015
Trishear: A Review of Kinematics, Mechanics, and Applications
Stuart Hardy, Richard W. Allmendinger
AAPG Special Volumes
... the identification of best-fit criteria; Allmendinger chose a least-squares linear regression to identify the point at which an unfolding keybed most...
2011
Petrologic and Experimental Evidence for the Etching of Garnets by Organic Acids in the Upper Jurassic Morrison Formation, Northwestern New Mexico
Paula L. Hansley
Journal of Sedimentary Research (SEPM)
... Energy Agency, p. 219-253. APPLEMAN, D. E., and EVANS, H. T., JR., 1973, Job 9214--Indexing and least-squares refinement of powder diffraction data: U.S....
1987
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)
...-level rise: Sedimentary Geology, v. 80, p. 319-329. KIRSCHVINK, J.L., 1982, The least-squares line and plane and the analysis of paleomagnetic data...
1995
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
Calculation of Ages of Hydrocarbons in Oils--Physical Chemistry Applied to Petroleum Geochemistry I
Allen Young , Patrick H. Monaghan , R. T. Schweisberger
AAPG Bulletin
.... The ages of single samples commonly can be determined with some confidence because the least-squares correlations are based on groups of 29 and 56...
1977
Interpreting Sedimentary Growth Structures from Well Log and Seismic Data (With Examples)
Richard E. Bischke
AAPG Bulletin
... Pliocene-Pleistocene section, with correlation 27 erratically departing from least squares fit line, indicating a data miscorrelation. Thus, the method can...
1994
Quantification of Tertiary Exhumation in the United Kingdom Southern North Sea Using Sonic Velocity Data
Richard R. Hillis
AAPG Bulletin
... Sandstone, and the Bunter Shale were plotted against each other to check their consistency (Figure 6). Regression analysis was used to determine least-squares...
1995
Forecasting the Domestic Utilization of Natural Gas in Nigeria (2015 2020)
J. J. Adaji, R. U. Onolemhemhen, S. O. Isehunwa, A. Adenikinju
Africa Energy and Technology Conference, 2016
... likely growth rate for a short-term period, using an econometric methodology of ordinary least squares and an ARIMA model, it estimates...
2016
Fracture-enhanced Porosity and Permeability Trends in the Bakken Formation, Williston Basin, Western North Dakota
Wayne B. Freisatz
Williston Basin Symposium
... member). The three informal members of the Bakken Formation show an apparent onlapping relation, with the lower shale the least extensive...
1995
Anomalous Tectonic Subsidence of the Southern Australian Passive Margin: Response to Cretaceous Dynamic Topography or Differential Lithospheric Stretching?
B. J. Brown, R. D. Müller, H. I. M. Struckmeyer
Petroleum Exploration Society of Australia (PESA)
... (~ factor). The misfit between the model (modelled subsidence and strain rate curve) and backstripped tectonic subsidence is minimised in a least-squares...
2001
Chapter 4: Synthetic Seismograms and Their Uses
Tom Wittick
North Texas Geological Society
... resistivity to sonic values. The Pseudosyn process uses a least squares minimum error technique to fit the data to an equation of the same form...
1992
A Review of Permian and Triassic Paleomagnetic Data With Respect to Paleogeographic Conditions at, and the Location of, the Permian-Triassic Boundary
A. E. M. Nairn, D. N. Peterson
CSPG Special Publications
... that the magnetic field be dipolar (Runcorn, 1959), an assumption which can be reasonably demonstrated (e.g. Helsley and Steiner, 1969). If the least squares...
1973
Evaluating Reservoir Compartmentalization by Correlating Laboratory and Field Data
Michael J. Heymans
Rocky Mountain Association of Geologists
... permeabilities should be as close as possible to a least squares fit curve for the porosity-permeability relationship. Permeability estimates from...
1998
The Relationship of Lithology and Tectonics to Fracturing in the Monterey Formation, Point Arguello Field, Offshore California
By R. K. Sadler
Special Publications of SEPM
... a non-negative least squares procedure. Detritus is considered to be the sum of feldspars, clay minerals, kerogen, pyrite, and detrital quartz...
1990
Preliminary Report on Curved Fractures Near Faults as Related to Fluid Extraction
Richard J. Erdlac, Jr., Richard J. Erdlac
West Texas Geological Society
..., R.H., Jr., 1974, Experimental test of least squares strain gage calculation using twinned calcite: Geological Society of America Bulletin, vol. 85, p...
2000
Phytostabilization of a landfill containing coal combustion waste
Christopher Barton, Donald Marx, Domy Adriano, Bon Jun Koo, Lee Newman, Stephen Czapka, John Blake, Donald Marx, Domy Adriano, Bon Jun Koo, Lee Newman, Stephen Czapka, John Blake, Domy Adriano, Bon Jun Koo, Lee Newman, Stephen Czapka, John Blake, Bon Jun Koo, Lee Newman, Stephen Czapka, John Blake, Lee Newman, Stephen Czapka, John Blake, Stephen Czapka, John Blake, John Blake
Environmental Geosciences (DEG)
... by backtransformation of the least-squares mean (LSM) from the logistic models (eLSM)/(1 + eLSM). Seedling growth was estimated by subtracting the initial height (April...
2005
The Influence of Pore Structure in Rocks on the Entrapment of Oil
N. C. Wardlaw
CSPG Special Publications
.... Rocks chosen at random to represent a wide range of porosities. Line is from a least squares linear regression. One can transform Snwr, which has been...
1980
Synthetic Seismograms and Their Uses
Abilene Geological Society
... that transforms resistivity to sonic values. The Pseudosyn process uses a least squares minimum error technique to fit the data to an equation...
1993