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Jake Marotta edited this page Jul 24, 2017 · 26 revisions

Topsoil

Topsoil is a desktop application and Java library that creates data visualizations for geochronologists and other earth scientists. The project is led and maintained by CIRDLES, an undergraduate research lab at the College of Charleston in Charleston, South Carolina.

"Topsoil" is an anagram of "Isoplot", the name of an enormously successful Microsoft Excel Add-In with similar capabilities that now works only in older versions of Excel.

If you are interested in learning more about Topsoil, please contact Jim Bowring.

To cite Topsoil, please provide a footnote or acknowledgement as follows:

J.F. Bowring, PI CIRDLES.org Open Source Development Team. Topsoil - A community driven replacement for ISOPLOT. Apache License, Version 2.0. https://github.com/CIRDLES/topsoil.

We have an article in production that will become the official citable reference, stay tuned.

License

Apache License, Version 2.0

System Requirements

Topsoil will run on Windows (x86 and x64), Linux (x86 and x64), and Mac (x64 only). Topsoil requires the latest version of Java (8u131 or higher), the installer for which can be found here.

Installation

To install Topsoil, first ensure that your computer meets our system requirements and then download the latest JAR file from the releases page.

Running Topsoil

To run Topsoil, simply double click on the JAR file.

Building from Source Code

Once you have the source code, navigate to the root directory in a terminal and execute the command ./gradlew build. This will build the required resources. After that, you can create a JAR file by running ./gradlew jarWithDependencies. The resulting JAR file will be in Topsoil/app/build/libs with the name topsoil-[version].jar.

Sample Data

Below are two sets of sample data which maybe copied and imported into Topsoil via Data Table > Import Data Table > Import From Clipboard. For a more detailed explanation on importing data into Topsoil, as well as a simple tutorial on Topsoil's usage, see the Topsoil project page of the CIRDLES website.

Uranium-Lead:

207Pb*/235U 206Pb*/238U ±2σ (%) ±2σ (%) corr coef
29.165688743 0.712165893 1.519417676 1.395116767 0.918191745
29.031535970 0.714916493 1.799945600 1.647075269 0.915069472
29.002008069 0.709482828 1.441943510 1.324922704 0.918845083
29.203969765 0.707078490 1.320690194 1.216231698 0.920906132
29.194452092 0.709615006 1.359029744 1.248057588 0.918344571
29.293320455 0.710934267 1.424328137 1.309135282 0.919124777
28.497489852 0.686951820 1.353243890 1.245648095 0.920490463
29.218573677 0.715702180 1.383868032 1.271276031 0.918639641
28.884872020 0.702153693 1.264304654 1.164978444 0.921438073
28.863259209 0.700081472 1.455550200 1.335582301 0.917579003
29.014325453 0.701464404 1.614480021 1.478394505 0.915709384
29.917885787 0.725185047 1.564622589 1.434906094 0.917094067
30.159907714 0.724886106 1.488528691 1.366282212 0.917874287
28.963153308 0.698240706 1.480754780 1.359750830 0.918282249
29.350104553 0.711983592 1.513999270 1.384417989 0.914411266
29.979576581 0.724426340 1.595745814 1.458894294 0.914239775
29.344673618 0.714166474 1.551935035 1.420060290 0.915025602

Uranium-Thorium (explicit rho values):

230Th*/238U 234U*/238U ±2σ (abs) ±2σ (abs) corr coef
0.787174467 1.112997105 0.002472973 0.004812142 0.0
0.785279872 1.104535717 0.003488836 0.003504504 0.0
0.757751874 1.098862611 0.003437122 0.004937997 0.0
0.756755971 1.095577076 0.002292904 0.00361392 0.0
0.769622435 1.10493373 0.003069412 0.005966043 0.0
0.754230241 1.099870658 0.004366264 0.003039218 0.0
0.760346901 1.104336707 0.004460567 0.004830971 0.0
0.759050757 1.098264378 0.002174949 0.005414218 0.0
0.766429941 1.102943341 0.007290816 0.003127906 0.0
0.777301225 1.101947646 0.003167341 0.003224137 0.0
0.779894193 1.118173335 0.003500865 0.00696614 0.0
0.781888816 1.118372424 0.003270823 0.008000935 0.0
0.782985109 1.117974657 0.00383209 0.004330706 0.0
0.781688601 1.111205641 0.004060869 0.007176835 0.0
0.762741024 1.10792003 0.002969033 0.00482314 0.0
0.763237957 1.103739947 0.004908767 0.004548051 0.0
0.769023512 1.110209805 0.003525521 0.005196072 0.0
0.769917231 1.105831646 0.002727962 0.005963751 0.0
0.776501596 1.112997925 0.003282191 0.004246044 0.0
0.776998549 1.111107425 0.003054914 0.003777516 0.0
0.798544256 1.117575886 0.001562462 0.005461398 0.0
0.800139952 1.114788659 0.002006875 0.005468221 0.0
0.800439225 1.113992263 0.003009748 0.003583907 0.0
0.803930031 1.11817297 0.002447054 0.00376547 0.0
0.763039792 1.107123872 0.003881829 0.007757655 0.0