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AEM for Leigh Creek-Marree Structural Mapping
Tania Wilson (Geological Survey of SA) and
Ian Roach (Geoscience Australia)
AEM Survey Location
QUESTION…In a deformed geological environment, can AEM detect accurate structural data?
ANSWER…Yes
DISCLAIMER…
Approach with CAUTION!
AEM Survey Location
• Focused on the NW corner of the AEM survey area.
• Outcropping Neoproterozoic basement.
• Late Triassic Leigh Creek Coal Measures.
AEM Survey Data
SBS 400m
LBL 400m
Depth Slices
Elevation Slices
Depth of Investigation
Conductance
Regional Scale FaultsGoCAD t Surfaces5km line spacingx10 V.E.
Bedding
Georeferenced jpegs5km line spacingx7.5 V.E.
Data Artefacts
Georeferenced jpegs5km line spacingx7.5 V.E.
Witchelina DiapirGoCAD t Surfaces5km line spacingx10 V.E.
Witchelina Diapir
Georeferenced jpegs5km line spacingx7.5 V.E.
Skillogalee Dolomite
Georeferenced jpegs5km line spacingx7.5 V.E.
Tapley Hill FormationGoCAD t Surfaces5km line spacingx10 V.E.