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CHRONI is a mobile application that presents archived data downloaded from the Geochron database in a customizable format for use by geologists in the field. The project is led and maintained by CIRDLES, an undergraduate research lab at the College of Charleston in Charleston, South Carolina.

This material is based upon work supported by the National Science Foundation under Grant Numbers 0930223 and 1443037. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

For more information about this project, please contact Jim Bowring.

Downloading the Latest Release for Android and iOS

For iOS, you can download Chroni from the App Store:

For Android, you can download Chroni from the Play Store:

Getting Started for Contributors and Users:

Please have installed git tools, Xcode (mac), and a text editor. Make sure there is an updated Node.js LTS version installed: Fork a copy of this project as your origin. Clone your repository onto your local and use the following commands to establish the upstream:

$ git remote add upstream

Installing Ionic: (Some commands might need sudo)

$ npm install -g cordova ionic

If this result in errors use this instead:

$ npm uninstall -g cordova
$ npm uninstall -g ionic
$ npm install -g cordova ionic

Ionic should now be installed with version 2 or higher. Use ionic -v to confirm. Continue with:

$ npm install
$ ionic cordova resources

To emulate on an ios platform

Change directories to the CHRONI directory on the local and run:

$ ionic cordova platform add ios
$ ionic cordova emulate ios -lc

To emulate on android platform

Have Android Studio installed and create an AVD within Android Studio. Then add the android platform and check if its been installed:

$ ionic cordova platform add android
$ ionic cordova platform

Change directories to the CHRONI directory on the local and run:

$ ionic cordova build android
$ ionic cordova run android

More info on this can be found on the Ionic Getting Started page and the Ionic CLI repo.


CHRONI is a mobile application that is being developed using Ionic, a cross platform app development framework.



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