I am a first year PhD candidate in geodynamics at the University of Bergen. My project evaluates the concept of metamorphic core complexes for the Devonian collapse of the Caledonian Orogen in SW Norway. In metamorphic core complexes, deep crustal rocks (the so-called “metamorphic core”) are being exhumed below extensional shear zones and exhibit a close interaction between deep and shallow crustal processes. Furthermore, such structures can significantly influence subsequent tectonic phases like the Mesozoic North Sea rift in case of SW Norway.
I was invited to attend a research trip organised by a group of Australian ore geology experts to the Broken Hill district, Australia. Broken Hill, discovered in 1884, is the largest Pb-Zn-Ag deposit in the world, and 250 million tonnes of high-grade ore has been produced from the 8 km long boomerang shaped ore body. The deposit is hosted by a sequence of metavolcanic to metasedimentary rocks in the Palaeoproterozoic Curnamona province, formed at about 1685 Ma.