WMS
Major Crustal Boundaries
The Major Crustal Boundaries web service displays the synthesized output of more than 30 years of acquisition of deep seismic reflection data across Australia, where major crustal-scale breaks have been interpreted in the seismic reflection profiles, often inferred to be relict sutures between different crustal blocks. The widespread coverage of the seismic profiles now provides the opportunity to construct a map of major crustal boundaries across Australia. Starting with the locations of the crustal breaks identified in the seismic profiles, geological (e.g. outcrop mapping, drill hole, geochronology, isotope) and geophysical (e.g. gravity, aeromagnetic, magnetotelluric) data are used to map the crustal boundaries, in map view, away from the seismic profiles. For some of these boundaries, a high level of confidence can be placed on the location, whereas the location of other boundaries can only be considered to have medium or low confidence. In other areas, especially in regions covered by thick sedimentary successions, the locations of some crustal boundaries are essentially unconstrained. The Major crustal boundaries of Australia map shows the locations of inferred ancient plate boundaries, and will provide constraints on the three dimensional architecture of Australia. It allows a better understanding of how the Australian continent was constructed from the Mesoarchean through to the Phanerozoic, and how this evolution and these boundaries have controlled metallogenesis. It is best viewed as a dynamic dataset, which will need to be refined and updated as new information, such as new seismic reflection data, becomes available.
Australia
web service
Exploring For The Future
EFTF
Earth sciences
crust
seismic interpretation
plate boundary
Geoscience Australia
Postal
GPO Box 378
Canberra
ACT
2601
Australia
+61 2 6249 9111
clientservices@ga.gov.au
NONE
© Commonwealth of Australia (Geoscience Australia) 2020. This product is released under the Creative Commons Attribution 4.0 International Licence. http://creativecommons.org/licenses/by/4.0/legalcode
4096
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Major Crustal Boundareis
EPSG:3577
EPSG:3857
EPSG:4283
EPSG:3112
EPSG:7844
EPSG:7845
EPSG:4326
CRS:84
114.629394
152.298317
-43.487677
-11.184990
MajorCrustalBoundaries
MajorCrustalBoundaries
Major crustal-scale breaks, often inferred to be relict sutures between different crustal blocks, have been interpreted in seismic reflection profiles. The widespread coverage of the seismic profiles now provides the opportunity to construct a map of major crustal boundaries across Australia. Starting with the locations of the crustal breaks identified in the seismic profiles, geological (e.g. outcrop mapping, drill hole, geochronology, isotope) and geophysical (e.g. gravity, aeromagnetic, magnetotelluric) data are used to map the crustal boundaries, in map view, away from the seismic profiles.
EPSG:3577
EPSG:3857
EPSG:4283
EPSG:3112
EPSG:7844
EPSG:7845
EPSG:4326
CRS:84
114.629394
152.298317
-43.487677
-11.184990
text/html