GeoKalk
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FaultFold Forward v. 6
0 reviewsGeoKalk is a calculator for vectors (lines and planes) and tensors (strain and stress). Multiple calculators can be opened, edited, and saved. The entries and the results are presented in tables, as well as in a stereonet and a Mohr circle. In 3D stress, the stereonet and the Mohr circle can be colored by slip tendency. Mac os x disk image download.
An easy to use and versatile structural geology calculator for Mac OS X that operates on planes an. Apr 11th 2016, 19:56 GMT. OS X 10.8 or later (Intel. GeoKalk May 2019 - Present 2 years. CEO Self-employed Nov 2004 - Present 16 years 6 months. Networking, Marketing, Leadership Executive Director BNI Hungary.
FaultFoldForward is an update of the forward modeling part of my program FaultFold. It has an updated interface and the forward modeling part has added functionality over the original program. Eventually, the inverse modeling part of the original program will be added but I wanted to get this into t ..
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AreaErrorProp
0 reviewsAreaErrorProp is a complete program with modern graphical user interface (GUI) to carry out the analysis of uncertainties in area balancing on both Mac OS X and Windows operating systems. Its primary purpose is to estimate the error on shortening magnitude and percent based on the uncertainties assi ..
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StrainSim v. 3
0 reviewsStrainSim 3 is an update of my simple forward modeling program to simulate simple shear, pure shear, and progressive deformation. This version is compatible with the latest Mac and Windows operating systems. The program is designed as a teaching and visualization device. As such it can animate progr ..
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EigenCalc
0 reviewsOne of the primary uses of eigenvalues and eigenvectors in structural geology is to calculate the principal axes of tensor quantities like stress, strain, or the orientation tensor. The actual numerical methods for calculating eigenvalues are beyond the background of most introductory structural geo ..
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KML Translator
0 reviewsThis program will read and parse a KML file, allowing one to save the data as a table of tab-delimited text. The name of the placemark, latitude, longitude, altitude, and any contents of the description field are saved to separate fields of the text file. Additionally, multiple vertices of any polyg ..
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LatLongUTM
0 reviewsThis is a small utility program to translate Longitude and Latitude coordinates into UTM coordinates and vice versa. You can choose from several different map datums, edit data and have it converted instantaneously to the other format, etc. Additionally, it can calculate all of the coordinates in a ..
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GeoSymbolsCVX
0 reviewsThis program will take a table of orientation data, saved as tab-delimited text file, and reformat the data so that it can be read into v. 9-12 of Canvas GIS drafting software. Upon import, you will see all of your strikes and dips of bedding, cleavage, joints, or lineations plotted with their corre ..
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Stereonet3D
0 reviewsDiscord stuck checking for updates on mac os sierra. Stereonet3D (previously OSXStereonet) plots lines and planes in spherical, equal angle or equal area, projections. The program can produce various types of plots such as scatter plots, great or small circles, arc segments, contours, rose diagrams, stereonets from any view direction, latitude-longitu ..
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GeoKalk
0 reviewsStructural geology deals to a great extent with the operation of vectors and tensors. GeoKalk (previously GeoCalc) is a calculator for vectors (lines and planes), and tensors (strain and stress). GeoKalk is a document based application. Multiple calculators can be opened and saved as independent doc ..
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SSPX
0 reviewsSSPX is a full fledged inverse modelling program to calculate best fitting strain tensors given displacement or velocity vectors in two or three dimensions. SSPX works equally well on small deformation problems such as computing strain rates from GPS data, or large deformation problems such as compu ..
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Geocalcs
Developed by Nestor Cardozo (UiS) and Stuart Hardy (ICREA, U. Barcelona).
cdem is a macOS application for discrete element modeling of geological structures and their associated deformation in 2D. cdem integrates pre-processing, processing, and post-processing (visualization) in a single application.
Different assemblies, properties, and boundary conditions can be chosen. The progress of the simulation can be observed in real time. When the run is complete, geometry, displacement, or strain can be visualized, or saved as an image or a movie. cdem is a document-based application, multiple simulations can be run at the same time. cdem is a great, simple and elegant tool for teaching and research.
cdem runs on macOS 10.14 (Mojave) and above. cdem is a shareware program.
To see examples of simulations, download a Demo or purchase a license, please visit thecdem.com.
Stereonet3D can perform various operations, including calculating poles to planes, rotating planes and lines, constraining lines to lie on their planes, angle between lines or planes, cylindrical best fit, conical best fit, and mean vector. Data with lat-long information can be exported to Google Earth.
More information about Stereonet3D can be found in Cardozo and Allmendinger (2013). Stereonet3D runs on Mac OSX 10.9 or later. It is freely available on the Mac App Store.
To test the program's Map view and export to kml, here are two files with strike/dip data from the Big Elk anticline in SE Idaho, and locations in lat-long or UTM (right click to download and open with the program's File -> Load Dataset from txt menu).
GeoKalk is a document based application. Multiple calculators can be opened and saved as independent documents. Multiple entries can be operated using tables. Entries can be load from and written to text files. Lines and planes can be visualized in a stereonet, and strain and stress in a Mohr circle. In 3D stress, the stereonet and Mohr circle can be coloured by slip tendency. Besides being a great tool to learn vectors and tensors and their application to geology and engineering, GeoKalk is a powerful tool to perform operations on thousands of vectors or tensors.
GeoKalk was made for geologists, but it can be used by anyone interested in vectors and tensors. GeoKalk runs on Mac OSX 10.9 or later. It is freely available on the Mac App Store.
SSPX can process single files, or batch process sequential files. Data with lat-long information (e.g. GPS stations) can be plotted on a Map/Satellite view. SSPX was made for geologists, but it can be used by anyone interested in computing strain/strain rate from displacement/velocity data.
More information about SSPX can be found in Cardozo and Allmendinger (2009). SSPX runs on Mac OSX 10.9 or later. It is freely available on the Mac App Store.
Here you can find some GPS and DEM files to test the program.
Geocalc C64
Trishear3D is a program to run 3D, forward trishear models. The program is based on algorithms by Cristallini and Allmendinger (2001), and Cristallini et al. (2004). Trishear3D can model the geometry and finite strain of fault propagation folds, fault bend folds, and lateral propagating faults. More information about Trishear3D can be found in Cardozo (2008).Geometry and strain data can be visualized in a 3D plot which can be sliced along any orientation and queried for strain. Geometry and strain are also displayed in tables which can be exported. Trishear3D is a great tool to investigate the impact of temporal and spatial variations of fault parameters on the 3D geometry and strain field of fault related folds.
Trishear3D runs on Mac OSX 10.9 or later. The program is free for non-profit purposes (for consulting please contact me).
Download 3.7 MB
version 7.0, Jan 14, 2021
The subsidence of a sedimentary basin is due to: tectonic subsidence, water and sediment loading, and sediment compaction. These three components can be estimated from a stratigraphic section using 'backstripping' (Allen and Allen, 1990). This removes from each sedimentary layer the effects of sediment compaction and water and sediment loading; thus extracting from the section the tectonic subsidence curve.Backstrip (previously OSXBackstrip) is a program to perform '1D Airy backstripping with exponential porosity reduction'. Stratigraphic units can be input in a table, and backstripping and tectonic subsidence plots and tables can be produced. Plots can be edited or saved for publication. Multiple documents (stratigraphic sections) can be backstripped and compared.
Geokalla
Backstrip runs on Mac OSX 10.9 or later. The program is free for non-profit purposes (for consulting please contact me).
Geokalkyl Sgi
Download 4.6 MB
version 5.1, Jan 14, 2021
The displacement profile of the surface of the earth under crustal loads (e.g. mountain chains) can be well reproduced by an elastic flexural model. In this model, the uppermost layer of the earth responds to crustal loads as an elastic beam floating in a weaker, fluid-like foundation (i.e. the astenospheric mantle, Turcotte and Schubert, 1982).Flex2D (previously OSXFlex2D) implements the elastic flexural model in 2D for a plate of constant or variable elastic thickness. Crustal loads can be entered and plotted, and the profile of deformation produced by these loads can be computed and visualized in plots and tables. Plots can be edited or saved for publications. Multiple load profiles can be computed and compared.
Flex2D runs on Mac OSX 10.9 or later. The program is free for non-profit purposes (for consulting please contact me).
Download 5.9 MB
Geocalculator
version 5.0, Jan 14, 2021