How to interpret fold data on a stereonet by dr jacqui houghton. Georose is a program plotting rose diagram used in structural geology area. The software is at create and edit orientation data in 3d. Its possible to update the information on stereonet 9 or report it as discontinued, duplicated or spam. This stereonet program acts like a piece of paper, but you can rotate it into the third dimension. First, we will familiarize ourselves with plotting lines on a stereonet remember that. You can create your own topography and show the outcrop pattern of. Example wulff equal angle stereonet a from pond excel spreadsheet calculated using data presented in fig. Furthermore, transparent diagram background is available. A heat map in excel is a visual representation that quickly shows you a comparative view of a dataset. Stereonet plotting program for windows, macos x rose diagrams. Thanks, all, for your kind comments about stereonet. The stereonet forms the surface of this lower hemisphere. For example, in the dataset below, i can easily spot which are the months when the sales were low highlighted in red as compared with other months.
When executed, the program will produce a stereonet by overlaying a scatter chart on a pie chart graph styles are referred to as charts in ms excel. An example of excel data file, ready to be imported into gcdkit. Data input in excel or any other spreadsheet application of your choice such as. A palaeocurrent indicator is evidence for the direction of flow at the time the sediment was deposited, and may also be referred to as the palaeoflow. Jan 24, 2011 how to interpret fold data on a stereonet by dr jacqui houghton. Importing text files with stereonet formatting code. An application to plot and analyse stereographic and equal area projections, and rose diagrams of geological structural data, copied and pasted from other applications, or read from text files. This is part five of a series of videos used on the first year structural geology course at the university of leeds. Results indicate that two different plane orientations were intersected one is subhorizontal and one is sub.
Stereographic projection of bedding attitudes using microsoft. Supported image export formats extended to png, pdf, ps and svg. Most of students learn how to calculate a real dip from a couple of apparent dips or, inversely, how to work out an apparent dip given the real dip and another direction using the stere. How to plot the strike data to the rosette diagram aapg wiki. You can create your own topography and show the outcrop pattern of geologic beds, folds, dykes, or faults in seconds. Crains petrophysical handbook structural analysis stereonets. Stereographic projection and rose diagram plotting. The software is for free and it is an excel spreadsheet that can be used in both pc and macintosh platforms. May 01, 2012 any student of geology in any university in the world learn during its degree the relationship between the real dip and the infinite apparent dips that a plane contains. Figure 1b figure 1c figure 1a projection plane stereonet projection plane.
When the geometry of the studied fold is more complicated, such as in elliptical conical folds or complex noncylindrical folds, the pdiagram scatters along ellipses or irregular paths. Visible geology is an interactive online educational tool for visualizing 3d geologic block models. G70 preamp, ge1 phono, cfz transformer and kondo souga amplifier. Palaeoflow data are used in conjunction with facies analysis and provenance studies to make palaeogeographic reconstructions. Great for learning what a stereonet is and for visualizing large data sets using like rose. You want inc o on the equator and inc 90 in the center. Mathematica code for leastsquares cone fitting and equalarea. Stereonet 9 brings location and date tagging of individual measurements as well as a free form notes field. Download strabospot data in microsoft excel spreadsheet format. The output is a pdf file that you can print anywhere. This site contains microsoft windows packages developed by rod holcombe for plotting stereographic projections, rose diagrams and wind roses georient. A piece of tracing paper for every stereonet problem a blank stereonet attached to this lab a thumbtack a thumbtack protector place the thumbtack through the center of the blank stereonet so that the sharp end is exposed on the printed side of the stereonet.
How to plot a moment tensor solution on a stereonet determine primaryauxillary planes determine the mechanism of the fault look at the provided graphic to see what type of fault caused the earthquake look at a map showing the fault where the earthquake originated. Measure trend and plunge of lines measure vertical angles measure bearings set local declination in determine the direction of strike and dip, there are four quadrants of a brunton compass. This arc is projected back up on to the stereonet to form a great circle figure 1b. Export results to excel flexural toppling highlight critical zones highlight slope plane on stereonet lateral limits planar sliding poles, dip vectors, intersections kinematic sensitivity analysis. Group data data can be imported through a simple text box option, where you can copy and paste straight from excel or any text editor. How to plot a moment tensor solution on a stereonet by sarah. Generate strike, dip direction, dip diagrams, and polar area diagrams. Quicker is to choose the appropriate term from the menu, which appears after rightclicking the console window. In the above dataset, the colors are assigned based on the value in the cell. At the same time, polar area diagram is ruled out in this release. May 02, 2012 this stereonet program acts like a piece of paper, but you can rotate it into the third dimension. It is very easy to create goodlooking layouts, align images and set fontthemes, but that just scratches the surface of what it can do.
The program is capable of many applications and is designed for both the novice user and for the accomplished user of stereographic projection who wishes to utilize more advanced tools in the analysis of geological data. Other significant improvements include the addition to the solve menu of the following. The stereonet is an old, traditional tool for dipmeter analysis that has become unconventional by the passage of time. Dotproc geoscientific analysis software dotproc software is designed to help geoscientists in the analysis of twodimentional 2d spatial data sets in a highly visual manner. Visible geology runs in the browser so there is no need to download anything, just click to add lines and double click to add planes. Problem 28 a do problem 27 ac for subsimple shear with wk0. Users can completely control their rose diagrams displaying style.
The stereographic projection was known to hipparchus, ptolemy and probably earlier to the egyptians. Download strabospot data in format suitable for rick allmendingers stereonet software. Software for stereographic projection there are several pieces of software that youd like to check out for that purposes. I tried all the software as well links, all are good in the case of plotting the readings but not supported to place text or concern. Stereonet 8 introduces a new binary file format that, in a single file, contains not only all of the data sets entered, but also all of the settings at the time the file was. Georose is a rose diagram and stereonet plotting program, which can plot structural geology rose diagram, equal area and equal angle stereonet diagram. Stereographic analysis application flexibility to the annotation creationediting component of the netprog application. Main page linking to rod holcombe software resources. Mathematica code for leastsquares cone fitting and equal. Dips is designed for the interactive analysis of orientation based geological data. Workbook 2 stereonets school of earth and environment. Users can fully control the style of the diagram as in rose diagram plotting mode.
How to create a heat map in excel a step by step guide. Structural geology programs for the mac and windows by rick allmendinger of cornell university. Developed before the days of calculators and computers, it allowed computation of many complex tasks that were tedious to perform by hand. Pdf the planes from oriented and navigated drillcore pond excel. Output in adobe portable document format pdf for individual files, and a.
The pdf output is now very robust and can be used in all cases where you would have used svg. Geochemical data toolkit gcdkit written in r language. Tricking excel into plotting declination, inclination data is simply a matter of calculating polar coordinates and remembering that the gradations from 0 to 90 degrees are linear. The data are routinely collected when making a sedimentary log, but additional palaeocurrent data may also be collected. The strike line is a nonplunging or horizontal line within a dipping plane. One of its most important uses was the representation of celestial charts. Planisphaerium by ptolemy is the oldest surviving document that describes it. Any student of geology in any university in the world learn during its degree the relationship between the real dip and the infinite apparent dips that a plane contains. If library rodbc has been installed, and r is run in 32bit mode, the gcdkit first attempts to establish odbc connection to the selected file, and open it as a dbase iiiiv. Use the excel spreadsheet enter sheet named subsimple shear and set k0. More in detail, you can project in equal area, or you can choose to project in equeal projection. General purpose stereographic projection program for plotting lines, planes, density contouring, rotations, etc. Looking from above, where the plane touches the edge of the lower hemisphere is an arc.
Undeformed and deformed strain marker reference used for derivation of formulae. Once you have the plot just as you like it, you can save it as a pdf file for import into other programs. After plotting the poles to bedding netprog, turn in on a single stereonet sheet. An online stereonet application that allows you to create and view all of your geologic stereonet information in 3d. Stereonet equal area schmidt net and equal angle wulff net stereographic projections great circles poles linears rotation around axis contours rose diagram dynamic rendering drawing features on stereonet with mouse csv import and export finding bestfitting plane for lineations calculating bestfitting intersection for. Which open source stereonet plot software can be used to plot. It was originally known as the planisphere projection. We would like to show you a description here but the site wont allow us. Once the stereonet has been created, the program will present dialog boxes that prompt the user to input bedding attitudes attitudes must be a quadrant format, e. Be careful, though, as the precision of the data imported will be that displayed in the original excel file. Displays well structural data on well plots, and field data on stereonets and rose. The stereonet used for the exercises is an equal area stereonet. Generate strike, dip direction and dip rose diagrams, and equal area and equal angle stereonet diagrams.457 1098 1390 1614 921 1464 567 757 314 1686 254 15 1401 856 379 1371 496 1446 1438 822 1518 873 547 279 1013 43 1433 906 538 699 1150 934