Colluvium-choked channel in cross-section

After seeing the contact of the Campus Andesite with Western Interior Seaway sedimentary rocks (Cretaceous in age), we moved a bit on down the line, and saw this disconformable contact between the Cretaceous shales below, and a bouldery sedimentary breccia above. Note the concave-up shape of the contact to the left of Elizabeth Nagy-Shadman (of … Read more

Contact of the Campus Andesite with host rocks

First thing we saw on the post-InTeGrate field trip to the rocks of El Paso, Texas, was this contact between the aforementioned Campus Andesite, and the Cretaceous sedimentary rocks into which it intruded (contact metamorphosed in the area of this photo): I decided to try switching up my annotation fonts. Whaddya think?

Cuprified wood

This is insane. Check it out – a malachitized and azuritized log, on display in front of the Geological Sciences building at the University of Texas at El Paso: Have you ever seen anything like that? It’s cool meets cool. Awesome.

InTeGrate, and some UTEP folds

I’m in El Paso, Texas, today (and tomorrow and Saturday), collaborating on a massive brainstorming session for a new NSF-funded initiative called InTeGrate, which is all about Interdisciplinary Teaching of Geoscience for a Sustainable Future. As leader Cathy Manduca said today when she opened our session, “We’re here to save the world!” And we’re going … Read more