
TY  - JOUR
A1  - Skladzien, Phil 
A1  - Cayley, Ross 
A1  - Taylor, David 
A1  - McLean, Mark 
T1  - 2½-D Inversion constraints on the Palinspastic Retro-Deformation of Siluro-Devonian Structures in the Black Range Region, Western Victoria — The “Crab Nebula” Untangled
JF  - ASEG Extended Abstracts
JO  - ASEG Extended Abstracts
Y1  - 2016
VL  - 2016
IS  - 1
SP  - 1
EP  - 5
KW  - 
UR  - https://doi.org/10.1071/ASEG2016AB255 
N2  - 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. 
ER  -

