Physical Sciences and Mathematics Commons^™

Petrology And Thermodynamic Modeling Of Amphibolite Facies Rocks Of The Blåhø Nappe Of The Middle Allochthon, Scandinavian Caledonides In Norway, Maria Van Nostrand

Honors Theses

The Scandinavian Caledonides are an orogenic belt formed when Baltica collided with Laurentia during the late Silurian to early Devonian (Scandian, ~426–390 Ma, Gee et al., 2008). The thrust sheets forming the belt are divided into the Lower, Middle, Upper, and Uppermost Allochthons derived, respectively, from the Baltican margin and regions progressively farther outboard. This study focuses on the Blåhø Nappe, part of the Middle Allochthon, which is generally presumed to have been from an Early Paleozoic volcanic arc off the Baltican margin. The Blåhø Nappe contains abundant igneous and sedimentary rocks, metamorphosed almost entirely at amphibolite facies, but contains …