Short communication: A semiautomated method for bulk fault slip analysis from topographic scarp profiles

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Vydáno v:Earth Surface Dynamics vol. 8, no. 1 (2020), p. 211
Hlavní autor: Wolfe, Franklin D
Další autoři: Stahl, Timothy A, Villamor, Pilar, Lukovic, Biljana
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Copernicus GmbH
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024 7 |a 10.5194/esurf-8-211-2020  |2 doi 
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100 1 |a Wolfe, Franklin D  |u Earth and Planetary Sciences, Harvard University, Cambridge, 02143, USA 
245 1 |a Short communication: A semiautomated method for bulk fault slip analysis from topographic scarp profiles 
260 |b Copernicus GmbH  |c 2020 
513 |a Journal Article 
520 3 |a Manual approaches for analyzing fault scarps in the field or with existing software can be tedious and time-consuming. Here, we introduce an open-source, semiautomated, Python-based graphical user interface (GUI) called the Monte Carlo Slip Statistics Toolkit (MCSST) for estimating dip slip on individual or bulk fault datasets that (1) makes the analysis of a large number of profiles much faster, (2) allows users with little or no coding skills to implement the necessary statistical techniques, (3) and provides geologists with a platform to incorporate their observations or expertise into the process. Using this toolkit, profiles are defined across fault scarps in high-resolution digital elevation models (DEMs), and then relevant fault scarp components are interactively identified (e.g., footwall, hanging wall, and scarp). Displacement statistics are calculated automatically using Monte Carlo simulation and can be conveniently visualized in geographic information systems (GISs) for spatial analysis. Fault slip rates can also be calculated when ages of footwall and hanging wall surfaces are known, allowing for temporal analysis. This method allows for the analysis of tens to hundreds of faults in rapid succession within GIS and a Python coding environment. Application of this method may contribute to a wide range of regional and local earthquake geology studies with adequate high-resolution DEM coverage, enabling both regional fault source characterization for seismic hazard and/or estimating geologic slip and strain rates, including creating long-term deformation maps. ArcGIS versions of these functions are available, as well as ones that utilize free, open-source Quantum GIS (QGIS) and Jupyter Notebook Python software. 
653 |a Earthquakes 
653 |a Geological mapping 
653 |a Source code 
653 |a Spatial analysis 
653 |a Topography 
653 |a Slip 
653 |a Geological hazards 
653 |a Geographic information systems 
653 |a Geology 
653 |a Computer simulation 
653 |a Fault scarps 
653 |a Resolution 
653 |a Toolkits 
653 |a Digital Elevation Models 
653 |a Geologists 
653 |a Hanging walls 
653 |a High resolution 
653 |a Escarpments 
653 |a Algorithms 
653 |a Software 
653 |a Monte Carlo simulation 
653 |a Freeware 
653 |a Information systems 
653 |a Maps 
653 |a Fault lines 
653 |a Communication 
653 |a Seismic hazard 
653 |a Statistics 
653 |a Graphical user interface 
653 |a Deformation 
653 |a Statistical analysis 
653 |a Profiles 
653 |a Coding 
653 |a Computer programs 
653 |a Seismic activity 
653 |a Geomorphology 
653 |a Estimation 
653 |a Remote sensing 
653 |a Statistical methods 
653 |a Geographical information systems 
653 |a Automation 
653 |a Environmental 
700 1 |a Stahl, Timothy A  |u College of Science, University of Canterbury, Christchurch, 8041, New Zealand 
700 1 |a Villamor, Pilar  |u GNS Science, Lower Hutt, 5040, New Zealand 
700 1 |a Lukovic, Biljana  |u GNS Science, Lower Hutt, 5040, New Zealand 
773 0 |t Earth Surface Dynamics  |g vol. 8, no. 1 (2020), p. 211 
786 0 |d ProQuest  |t Publicly Available Content Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/2414741397/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch 
856 4 0 |3 Full Text  |u https://www.proquest.com/docview/2414741397/fulltext/embedded/6A8EOT78XXH2IG52?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/2414741397/fulltextPDF/embedded/6A8EOT78XXH2IG52?source=fedsrch