North Tyennan structural study released

MRT has published a  structural synthesis of the north Tyennan region as part of its ongoing series of papers shedding new light on the geology of western Tasmania.

The aim of the study was to re-examine the structure of the Tyennan Proterozoic rocks in the context of Cambrian continental margin subduction-obduction. Deformation of this former Cambrian continental margin beneath the advancing ophiolite sheet has involved crustal-scale stacking of sheets of different metamorphic grade, isoclinal folding and internal sheet deformation, with sheets welded along their contacts by shear zones and/or brittle faulting.

Other papers in this series may be found here.