Although New York City is not thought of as a mecca for geologists you would be surprised at the hidden gems it has to offer. My first stop in New York City was the top of the Rockefeller Center. A terribly touristy place offers an unparalleled view of the city. I will never cease to […]
from Kellen Gunderson: Western South Dakota contains two gems that are often forgotten in discussions of great landscapes of the American Rocky Mountains. Just off I-80 near the Wyoming border lies the famous South Dakota Black Hills Mountains and Badlands National Park. Before the Black Hills became the holy mountains of the Lakota Sioux Tribe, […]
Flysch and Molasse are terms that describe different sets of sedimentary facies associated with orogenic belts. Molasse is defined as terrestrial and shallow marine deposits formed nearest the rising mountain front. It consists of various interbedded rock types including conglomerates, sandstones, and shales. The flysch on the other hand is made up of deep marine […]
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 […]
Last week we transected the Apulian crust through the Ivrea-Verbano Zone to the Insubric Line. The Insubric Line is the suture between the Apulian crust that makes up Italy and the European continent. Within this suture zone is a sliver of oceanic crust zone known as the Sesia-Lanzo Zone. The Sesia Lanzo and other units of […]
