It is common in the fields of rock and environmental magnetism to unmix magnetic mineral components using statistical methods that decompose various types of magnetization curves (e.g., acquisition, demagnetization, or backfield). A number of programs have been developed over the past decade that are frequently used by the rock magnetic community, however many of these programs are either outdated or have obstacles inhibiting their usability. MAX UnMix is a web application (available online at http://www.irm.umn.edu/maxunmix), built using the shiny package for R studio, that can be used for unmixing coercivity distributions derived from magnetization curves. Here, we describe in detail the statistical model underpinning the MAX UnMix web application and discuss the programs functionality. MAX UnMix is an improvement over previous unmixing programs in that it is designed to be user friendly, runs as an independent website, and is platform independent.
Bibliographical noteFunding Information:
We thank members of the Institute for Rock Magnetism for comments that helped to improve early versions of this program. Mark Dekkers, Ramon Egli, and Christoph Geiss provided thoughtful reviews that greatly improved this work. D.P.M. acknowledges funding from the Stanwood Johnston and Doctoral Dissertation Fellowships from the University of Minnesota . This is IRM contribution 1606.
- R studio
- Rock magnetism