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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,619 documents.
THE COLORADO EARTHQUAKE OF NOVEMBER 7,1882: SIZE, EPICENTRAL LOCATION, INTENSITIES, AND POSSIBLE CAUSATIVE FAULT
Robin K. McGuire, Alan Krusi, Sherry D. Oaks
Rocky Mountain Association of Geologists
... estimated and magnitudes determined. These data are plotted on Figure 2. A least-squares line fit to these data yields the equation: M = 0.08 + 1.12...
1982
Rhenium-Osmium Geochronology and Geochemistry of the Permian Brushy Canyon Formation: Investigating the Controls of Re and Os Abundances in Organic-Rich Shales and the Evolution of Permian Seawater
Shawn Wright, Alan Brandon, John Casey
Unconventional Resources Technology Conference (URTEC)
..., 3458-3475. York D. (1969) Least-squares fitting of a straight line with correlated errors. Earth and Planetary Science Letters 5, 320-324. Zelt F.B....
2017
Constraints on the nature and thickness of sedimentary fill and underlying basement rocks in Bowser and Sustut basins, north-central British Columbia from analysis of potential field data
Carmel Lowe, Judith Baker, Carol Evenchick
CSPG Bulletin
... are used to solve Euler's equation by a least squares inversion. The data window is then moved a specified number of elements in the x or y grid...
2006
Thermal Maturation by Vitrinite Reflectance of Woodford Shale, Anadarko Basin, Oklahoma
Brian J. Cardott , Michael W. Lambert
AAPG Bulletin
... is a logarithmic function with depth (Dow, 1977; Dow and O'Connor, 1982). The least-squares regression plotted in Figure 5B is used to predict...
1985
Application of Vitrinite Reflectivity to Paleogeothermometry Studies: Some Examples from Papua New Guinea Basins
N. J. Russell
Papua New Guinea (PNG) Petroleum Convention Proceedings
... is similar to the value of 5°C used by Exon and Marlow (1988) for calculating sub surface tem peratures in the New Ireland Basin. Least squares...
1990
Sediment characteristics of some Nova Scotian beaches
Edward Bryant
Atlantic Geology
... are more objective and efficient, and so were used here. These techniques are based on either maximum likelihood or non-linear least squares methods...
1983
Open and Closed Number Systems in Stratigraphic Mapping
W. C. Krumbein
AAPG Bulletin
..., is a least-squares index of the linear relations between two variables. The sample variance for any measured variable (such as thickness or percentage...
1962
On the Stabilizing Influence of Silt on Sand Beds
Gerhard Bartzke, Karin R. Bryan, Conrad A. Pilditch, Katrin Huhn
Journal of Sedimentary Research (SEPM)
... in the water column, was modeled by the initial slope ab of the least-squares fit of the hyperbolic tangent model y = a tanh(bt) fitted to each 10...
2013
Analysis of global navigation satellite system data along the Southern Gas Corridor and estimate of the expected displacements
Giuliana Rossi, Riccardo Caputo, David Zuliani, Paolo Fabris, Massimiliano Maggini, and Panagiotis Karvelis
Environmental Geosciences (DEG)
...-squares method, or kriging. For both approaches, we interpolated the data on 49 points, spaced 20 km (12.4 mi). This value is the maximum possible detail...
2020
Structure of Extensionally Rifted Crust Beneath the Western Ross Sea and Iselin Bank, Antarctica, from Sonobuoy Seismic Data
A. K. Cooper, F. J. Davey, G. R. Cochrane
Circum Pacific Council Publications
... determinations from four representative sonobuoy stations (Figs. 1 I B - 1 I E ) . T h e least-squares curves in Figure 1 1 A give the average depth...
1987
Graphic Correlation of Plio-Pleistocene Sequence Boundaries, Gulf of Mexico: Oxygen Isotopes, Ice Volume, and Sea Level
Ronald E. Martin, Ruth R. Fletcher
Special Publications of SEPM
... the composite based on ODP Core 625B Fig 12 proves instructive Martin and others l990a originally fitted the LOC for Core E67 135 using a Least Squares...
1995
Integrated Study of Ancient Delta-Front Deposits, Using Outcrop, Ground-Penetrating Radar, and Three-Dimensional Photorealistic Data: Cretaceous Panther Tongue Sandstone, Utah, U.S.A.
Cornel Olariu, Janok P. Bhattacharya, Xueming Xu, Carlos L.V. Aiken, Xiaoxian Zeng, George A. Mcmechan
Special Publications of SEPM
... model is a simplified model which does not include radial and tangential distortions made by camera lenses. Therefore, a least-squares method is used...
2005
Interpreting Permeability from Mercury Injection Capillary Pressure Data; #41660 (2015)
Alton A. Brown
Search and Discovery.com
...(-0.16φ) (porosity in percent) The model is fit to the lower part of the data cloud rather than a least-squares fit (Figure 18). Regression fit...
2015
Stress-Dependent Permeability and Porosity of Coal
Chester R. McKee, Amar C. Bumb, Robert A. Koenig
Rocky Mountain Association of Geologists
... with the data reported to only one significant digit. Figure 1 shows the Pittsburgh seam data on a semi-log plot with a least-squares straight line through...
1988
Some Petrophysical Aspects of the Mississippian "Chat" Glick Field, Kiowa County, Kansas
Jack D. Duren
Oklahoma City Geological Society
... groups as shown in Figure 11. These calculated "m" values range from 2.24 to 2.73 with a least squares average of 2.36. The steeper slopes were...
1961
Late Paleozoic and Mesozoic Paleomagnetism and Tectonic Evolution of the Tarim Terrane
Fang Dajun, Chen Hanlin, Jin Guohai, Guo Yabin, Wang Zhaoliang, Tan Xiaodong, Yin Shuhang
Circum Pacific Council Publications
..., Paleomagnetology, Springer-Verlag, 308 PKirschvink, J.L., 1980, The least-squares line and plane and the analysis of paleomagnetic data, Geophys. J. R. Astr. S o c...
1990
Reservoir characterization and associated uncertainties of a presalt carbonate field, Brazil offshore
Jaydip Guha, Hannah Wood, Martijn Blaauw, Caroline Scott, Cody Stewart, Lina Xu, Wenceslau P. Gouveia, Edward Follows, Runer Avila, Andrew Barnett, Josephine Wheeler
International Meeting for Applied Geoscience and Energy (IMAGE)
... of a least-squares reverse time migration (LSRTM) seismic data and related inversion products. Integrated Reservoir Modeling: Objectives, Approach...
2022
Calibration of Kinetic Models with Data from Geologically Matured Organic Matter: Estimation of the Kinetics of Thermal Degradation of Individual Oil-generating Macerals
Johan K. Michelsen and Ganjavar Khavari Khorasini
The Society for Organic Petrology (TSOP)
... simultaneous equations of (1). The set of simultaneous equations bas no exact solution. However, if h e simultaneous equations c n be solved by least...
1993
Leveraging legacy data: An onshore reprocessing case study from eastern Australia
Bahaa Soliman, Catalina L. Ocampo, Oscar Garcia, Andy Walz, Anthony Goodall, Emily Guidry
International Meeting for Applied Geoscience and Energy (IMAGE)
... models for each user-specified interpreted generator to adaptively filter and subtract them from the input seismic using least squares simultaneous...
2022
Integration of New Interpretation, Attribute Analysis and Inversion Results for the Dampier Sub-Basin, North West Shelf of Australia
Jarrad Grahame, Jianfeng Yao
Australian Petroleum Production & Exploration Association (APPEA) Journal
... reprocessed dataset is 14 275 km2 (Fig. 1). The Typhon reprocessing project involved the application of advanced techniques, including Kirchoff Least Squares Q...
2021
Teknik-teknik geoelektrik dalam Pemetaan air masin di Kuala Selangor (IN MALAY), Mapping of groundwater salinity at Kuala Selangor by geoelectrical techniques
Siti Zalipah Jumary, Umar Hamzah, Abdul Rahim Samsudin, Edna Pilis Malim
Geological Society of Malaysia (GSM)
...., 1984. An Introduction to Geophysical Exploration. Oxford. Blackwell Scientific Publications. LOKE M. H. & BARKER, R.D., 1995. Least-squares...
2002
Seeing through the shear zone for the first time: The impact of seismic technologies on the clarity of seismic image over Bahrah field
Ali Mohamed, Adel El-Emam, Nacim Brika, Halis Bayri, Amr Issa, Kashif Adeel
International Meeting for Applied Geoscience and Energy (IMAGE)
... simultaneously and adaptively matched to the input seismic data using least-squares filters and subtracted using a dip discrimination and horizons-based...
2022
An acoustic wave equation with the gradients of velocity and density
Jianyong Bai, Orhan Yilmaz
International Meeting for Applied Geoscience and Energy (IMAGE)
... estimation in full waveform inversion or is used for optimizing migration image in least-squares RTM. Note that historically the reflectivity has been used...
2023
FWI imaging of complex subsalt Mesozoic targets from land to shallow waters
Timmy Dy, Minshen Wang, Sabaresan Mothi, Don Dobesh, Shengda Ding, Oscar Andrade, Pablo Ortega, Alfredo Vázquez Cantú, Silvino Domínguez García, Gerardo López Leyva
International Meeting for Applied Geoscience and Energy (IMAGE)
... a least-squares RTM might help the illumination and amplitude to some extent, the phase uncertainty persists. FWI Imaging, through iterative data-fitting...
2023
Induced Gamma Ray Spectroscopy (IGS) Log Application in the Java Sea
Cholid Mas, Anna Maria, Mark Schneider, Bambang Hari Setiyawan
Indonesian Petroleum Association
... yield, can be determined by weighted least squares spectral fitting. Figure 3 summarizes the process of obtaining elemental yield. This process...
1996