Happy new year and welcome to the first release notes highlights note! We get the feeling that new features or changes often go unnoticed in our release notes that are displayed when updating.
Laser logs can save a lot of time when setting up selections in iolite. Rather than painstakingly reviewing each bit of data and assigning it to a selection/group, the time stamps in a laser log and the analysis annotations can be matched up with mass spec data to automate this process.
This note is to address some questions we’ve recently received about the Pb concentration calculation in iolite, and in particular why when measuring the Pb concentration in zircons you get very different concentrations for each of the Pb channels.
Masks have been part of iolite since the early days, but we still regularly get questions about them. In this note, we will take a look at what a mask is and why you might want to use one, the ways you can make one, and what it looks like when things go right (and wrong).
A common question we are asked about U-Pb geochronology in iolite is: “Why is the mean age calculated by iolite different to the age calculated from the mean ratio?