Mark Wilson July 21st, 2010
CHRISTCHURCH, NEW ZEALAND–Andrew Collins, our Wooster Geology student abroad in New Zealand, has posted another set of photographs from his adventures. Of course they include field geology! Here is one of his images from a recent outing:
This view fits into one of our major themes this year: basalt! We had plenty of it on the Mojave field trip, the Utah group dabbled in it, and the Iceland team is defined by this dense black rock. Now I’m no expert, but here’s my interpretation of the above outcrop: it looks like a basalt flow over a coarse conglomerate with a magnificent baked zone at the top of the conglomerate (the bright red) and a chilled zone at the base of the basalt. What do you think?