The Mutilation of Uranus by Cronus. Georgio Vasari and Cristofano Gherardi, Palazzo Vecchio, Florence, c. 1560.


The online calculators formerly known as the CRONUS-Earth online calculators (*):


Current stable versions: These reflect the calculation methods and calibration data described in a 2008 paper with several updates. Use these unless you have a particular reason to use the developmental or archived versions. Note that as of August, 2016, the current stable version is 2.3, which differs from version 2.2 in that it uses different muon interaction cross-sections and has a different default production rate calibration data set.

For some context about the various versions, see this.

10Be - 26Al measurements - Version 2.3:

Calculate exposure ages
Calculate surface erosion rates
Establish a production rate calibration
Calculate topographic shielding
Instructions and documentation

Developmental versions: These versions are in active development, are very likely to contain errors, may not work at all, and may be offline for changes at any time. On the other hand, they have more features than the stable versions. They appear on a separate page.

Archived versions: These have been superseded by the current stable version, but they are archived here so that calculations done in the past can be reproduced. They appear on a separate page.
"In the cloud since 2006"

Contact: Greg Balco, Zach Ploskey

Initial development of this website was supported by the U.S. National Science Foundation via the CRONUS-Earth project.
Hosted by the Cosmogenic Nuclide Lab, University of Washington
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