Andy Barth

A field trip to explore rock formation and tectonics of southern California part of Geoscience in the Field:Activities
In this contribution, we provide an example of a one-day trip to examine Proterozoic metamorphic and Mesozoic intrusive igneous rocks that are easily accessible along and near roads in southern California. The ...

Calculating Rb-Sr Isochrons part of Petrology:Teaching Examples
This is a spreadsheet that I use in petrology to walk students through calculating Rb-Sr isochrons and talking about isotope heterogeneity and sampling at various scales. The example exercise is the Tuolumne ...