The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Thomas K Rockwell - One of the best experts on this subject based on the ideXlab platform.
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refining seismic parameters in low seismicity areas by 3d trenching the alhama de murcia fault se iberia
Tectonophysics, 2016Co-Authors: Marta Ferrater, Maria Ortuno, E Masana, Raimon Pallas, Hector Perea, Stephane Baize, Eduardo Garciamelendez, J J Martinezdiaz, Anna Echeverria, Thomas K RockwellAbstract:Three-dimensional paleoseismology in strike-slip faults with slip rates less than 1 mm per year involves a great Methodological Challenge. We adapted 3D trenching to track buried channels offset by the Alhama de Murcia seismogenic left-lateral strike-slip fault (SE Iberia). A fault net slip of 0.9 ± 0.1 mm/yr was determined using statistical analysis of piercing lines for one buried channel, whose age is constrained between 15.2 ± 1.1 ka and 21.9–22.3 cal BP. This value is larger and more accurate than the previously published slip rates for this fault. The minimum number of five paleo-earthquakes identified since the deposition of dated layers suggests a maximum average recurrence interval of approximately 5 ka. The combination of both seismic parameters yields a maximum slip per event between 5.3 and 6.3 m. We show that accurately planned trenching strategies and data processing may be key to obtaining robust paleoseismic parameters in low seismicity areas.
Brian D. Haig - One of the best experts on this subject based on the ideXlab platform.
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exploratory factor analysis theory generation and scientific method
Multivariate Behavioral Research, 2005Co-Authors: Brian D. HaigAbstract:This article examines the Methodological foundations of exploratory factor analysis (EFA) and suggests that it is properly construed as a method for generating explanatory theories. In the first half of the article it is argued that EFA should be understood as an abductive method of theory generation that exploits an important precept of scientific inference known as the principle of the common cause. This characterization of the inferential nature of EFA coheres well with its interpretation as a latent variable method. The second half of the article outlines a broad theory of scientific method in which abductive reasoning figures prominently. It then discusses a number of Methodological features of EFA in the light of that method. Specifically, it is argued that EFA helps researchers generate theories with genuine explanatory merit; that factor indeterminacy is a Methodological Challenge for both EFA and confirmatory factor analysis, but that the Challenge can be satisfactorily met in each case; and, tha...
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exploratory factor analysis theory generation and scientific method
Multivariate Behavioral Research, 2005Co-Authors: Brian D. HaigAbstract:This article examines the Methodological foundations of exploratory factor analysis (EFA) and suggests that it is properly construed as a method for generating explanatory theories. In the first half of the article it is argued that EFA should be understood as an abductive method of theory generation that exploits an important precept of scientific inference known as the principle of the common cause. This characterization of the inferential nature of EFA coheres well with its interpretation as a latent variable method. The second half of the article outlines a broad theory of scientific method in which abductive reasoning figures prominently. It then discusses a number of Methodological features of EFA in the light of that method. Specifically, it is argued that EFA helps researchers generate theories with genuine explanatory merit; that factor indeterminacy is a Methodological Challenge for both EFA and confirmatory factor analysis, but that the Challenge can be satisfactorily met in each case; and, that EFA, as a useful method of theory generation, can be profitably employed in tandem with confirmatory factor analysis and other methods of theory evaluation.
Marta Ferrater - One of the best experts on this subject based on the ideXlab platform.
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refining seismic parameters in low seismicity areas by 3d trenching the alhama de murcia fault se iberia
Tectonophysics, 2016Co-Authors: Marta Ferrater, Maria Ortuno, E Masana, Raimon Pallas, Hector Perea, Stephane Baize, Eduardo Garciamelendez, J J Martinezdiaz, Anna Echeverria, Thomas K RockwellAbstract:Three-dimensional paleoseismology in strike-slip faults with slip rates less than 1 mm per year involves a great Methodological Challenge. We adapted 3D trenching to track buried channels offset by the Alhama de Murcia seismogenic left-lateral strike-slip fault (SE Iberia). A fault net slip of 0.9 ± 0.1 mm/yr was determined using statistical analysis of piercing lines for one buried channel, whose age is constrained between 15.2 ± 1.1 ka and 21.9–22.3 cal BP. This value is larger and more accurate than the previously published slip rates for this fault. The minimum number of five paleo-earthquakes identified since the deposition of dated layers suggests a maximum average recurrence interval of approximately 5 ka. The combination of both seismic parameters yields a maximum slip per event between 5.3 and 6.3 m. We show that accurately planned trenching strategies and data processing may be key to obtaining robust paleoseismic parameters in low seismicity areas.
E Masana - One of the best experts on this subject based on the ideXlab platform.
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refining seismic parameters in low seismicity areas by 3d trenching the alhama de murcia fault se iberia
Tectonophysics, 2016Co-Authors: Marta Ferrater, Maria Ortuno, E Masana, Raimon Pallas, Hector Perea, Stephane Baize, Eduardo Garciamelendez, J J Martinezdiaz, Anna Echeverria, Thomas K RockwellAbstract:Three-dimensional paleoseismology in strike-slip faults with slip rates less than 1 mm per year involves a great Methodological Challenge. We adapted 3D trenching to track buried channels offset by the Alhama de Murcia seismogenic left-lateral strike-slip fault (SE Iberia). A fault net slip of 0.9 ± 0.1 mm/yr was determined using statistical analysis of piercing lines for one buried channel, whose age is constrained between 15.2 ± 1.1 ka and 21.9–22.3 cal BP. This value is larger and more accurate than the previously published slip rates for this fault. The minimum number of five paleo-earthquakes identified since the deposition of dated layers suggests a maximum average recurrence interval of approximately 5 ka. The combination of both seismic parameters yields a maximum slip per event between 5.3 and 6.3 m. We show that accurately planned trenching strategies and data processing may be key to obtaining robust paleoseismic parameters in low seismicity areas.
Raimon Pallas - One of the best experts on this subject based on the ideXlab platform.
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refining seismic parameters in low seismicity areas by 3d trenching the alhama de murcia fault se iberia
Tectonophysics, 2016Co-Authors: Marta Ferrater, Maria Ortuno, E Masana, Raimon Pallas, Hector Perea, Stephane Baize, Eduardo Garciamelendez, J J Martinezdiaz, Anna Echeverria, Thomas K RockwellAbstract:Three-dimensional paleoseismology in strike-slip faults with slip rates less than 1 mm per year involves a great Methodological Challenge. We adapted 3D trenching to track buried channels offset by the Alhama de Murcia seismogenic left-lateral strike-slip fault (SE Iberia). A fault net slip of 0.9 ± 0.1 mm/yr was determined using statistical analysis of piercing lines for one buried channel, whose age is constrained between 15.2 ± 1.1 ka and 21.9–22.3 cal BP. This value is larger and more accurate than the previously published slip rates for this fault. The minimum number of five paleo-earthquakes identified since the deposition of dated layers suggests a maximum average recurrence interval of approximately 5 ka. The combination of both seismic parameters yields a maximum slip per event between 5.3 and 6.3 m. We show that accurately planned trenching strategies and data processing may be key to obtaining robust paleoseismic parameters in low seismicity areas.
