
%0 Journal Article
%A Skladzien, Phil 
%A Cayley, Ross 
%A Taylor, David 
%A McLean, Mark 
%T 2½-D Inversion constraints on the Palinspastic Retro-Deformation of Siluro-Devonian Structures in the Black Range Region, Western Victoria — The “Crab Nebula” Untangled
%J ASEG Extended Abstracts
%D 2016/08/24
%V 2016
%N 1
%P 1-5
%K 
%R https://doi.org/10.1071/ASEG2016AB255
%U https://www.publish.csiro.au/paper/ASEG2016AB255 
%X The Stavely Arc developed during the Cambrian above a continent (west) dipping subduction zone within the Grampians-Stavely Zone in present-day western Victoria. Siluro-Devonian regional dextral trans-tensional strike-slip faults recently mapped by the Geological Survey of Victoria in Cambrian basement, previously only recognised in Grampians Group cover, have segmented what was a relatively simple Cambrian configuration of Stavely Arc volcanic fault slices into a complex array of segmented and variably rotated arc fragments, including the until now enigmatic &#x201c;Crab Nebula&#x201d; in the Black Range.Inversion of magnetic data has provided an understanding of the 3D geometries of the three volcanic belts in the Black Range. Applying this understanding, together with over-printing criteria evident in filtered potential field data, within the context of a trans-tensional strike-slip stress regime, has enabled a retro-deformation of the Black Range belts into a single, west dipping belt of arc volcanics &#x2014; an untangled, pre-Silurian &#x201c;Crab Nebula&#x201d;. The proven prospectivity of the Black Range Belt (by the presence of the McRaes/Eclipse prospect) can now be extended to all three of the Black Range belts. 
