Orogens are the locus of intense deformation and metamorphism, mainly caused by convergent tectonics and burial. Yet, deeply buried rocks – metamorphosed at high pressure (HP) – are customarily met at the surface, even in “recent” systems such as the Alps. The long-standing question is naturally “how are these rocks brought back to the surface?” At the time John Platt wrote his manuscr ...[Read More]
TS Must-Read – Boyer & Elliot (1982) Thrust systems
The now-classic paper of Boyer & Elliott (1982) presented a novel and general geometric framework to study thrust systems. The framework describes thrust surfaces by lines of contact between thrusts, or branch lines, and lines of thrust termination, or tip lines, and examines how they join into imbricate fans or duplexes. The framework allows accurate and succinct descriptions of the geometry ...[Read More]
Zürich: surrounded by a geologist’s playground
Zürich, with its lake stretching towards the foot of the Swiss Alps in the South, is currently a charming city full of watersides, lively bars, students and bankers. In Switzerland, you’ll find a wide variety of landscapes and geological features over a relatively small area – from the Alpine mountain range in the South to the low-lying plateau and the Jura Mountains in the North. Located in close ...[Read More]