[lbg_fullscreen_fullwidth_slider settings_id='2']

Central Alps – Helvetic Nappes

October 4, 2012August 21, 2015 Christopher Spencer

First off we should define what is a nappe. A nappes is a package of rock that has been folded and deformed to the point that it is completely allocthonous, that is disconnected from its origin (generally over 5km from the original position). They are characterized by rootless, recumbent, and isoclinal folds. The word nappe is […]

Italian/Suisse Alps

January 1, 2012November 9, 2014 Christopher Spencer

The Alpide Belt is a seismogenic zone extending from the Atlas mountains in Morocco through the Zagros mountains of Iran to the easternmost region of Indonesia. This range of mountains was formed through the collision of Africa, Arabia, India, and Australia with Eurasia. Having covered the Indian portion of this collision previously, I now move […]