The isotope geochemistry of helium is an incomparable tool for investigating the outgassing of the mantle and also to model water circulation in aquifers. Exercises 1. Calculate the age of a basalt containing 1. Assume that the atomic proportion of 40K in natural potassium is 0.
Shuster, David L. Geochimica et Cosmochimica Acta, 69 3. ISSN Full text is not posted in this repository. Consult Related URLs below. Measured He ages ranged from 61 to 8 Ma and were reproducible to better than a few percent despite very large variations in [U] and [Th].
IsoplotR is programmed in R and can be run 1 online, via a Graphical User Interface GUI that runs in a web browser on any internet-connected device; 2 offline, natively running the GUI on any computer that has R installed on it; and 3 from the command line, which allows IsoplotR to be extended and incorporated into automation scripts. CosmoCalc is an Excel add-in. RadialPlotter is a user-friendly application for generating radial plots.