AGES Conference 23 March 2011 Geological interpretation and geodynamic implications of the deep seismic reflection and MT line 09GA-GA1: Georgina Basin-Arunta Region Russell Korsch 1 , RS Blewett 1 , DF Close 2 , IR Scrimgeour 2 , DL Huston 1 , N Kositcin 1 , JA Whelan 2 , LK Carr 1 and J Duan 1 1 GA, 2 NTGS
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AGES Conference 23 March 2011
Geological interpretation and geodynamic implications of the deep seismic reflection and MT
line 09GA-GA1: Georgina Basin-Arunta Region
Russell Korsch1, RS Blewett1, DF Close2,IR Scrimgeour2, DL Huston1, N Kositcin1,
JA Whelan2, LK Carr1 and J Duan1
1GA, 2NTGS
AGES Conference 23 March 2011
Geoscience AustraliaOnshore Energy Security Program
Geological potential for uranium, geothermal andpetroleum
Comprehensive 3D understanding of NT geologyand pinpoint exploration opportunities ingreenfields regions
AGES Conference 23 March 2011
Deep seismic
reflection lines in
Australia
CBYOM
GA
CBYOM
GA
AGES Conference 23 March 2011
Georgina-Arunta deep seismic line 09GA-GA1
• Deep seismic reflection line – 373 line km– 300 channels @ 40 m (= 12 km active)– 80 m vibration interval → 75 fold– 20 s record length (@ 2ms) = ~60 km depth
• Gravity stations– every 400 m
• MT stations– 39 stations @ 5-20 km spacing– Imaged to >150 km depth