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AEROMAGNETIC CONTRACTS IN SOUTH AUSTRALIA

by Doug Morrison

The following information is sourced from the "Atlas of Technical Data" (revised edition March 1981) issued by the South Australian Department of Mines and Energy (SADME). The publication includes index maps and listings of the earliest aeromagnetic surveys in South Australia. The contracts flown by Adastra are highlighted on the maps and listed in the following tables.

 

(Click on map for a larger image)

 

Map 1: Government Regional Surveys

No
 For When Spacing Direction Altitude
1
 SADME flown 1955 1.6km E-W 300 meters baro
2
 SADME flown 1955 1.6km NW-SE 460 meters baro
3
 SADME flown 1955 1.6km N-S 150 meters AGL
4
 SADME flown 1957 1.6km E-W 150 meters AGL
5
 SADME flown 1956 1.6km E-W 460 meters AGL
6
 SADME flown 1956 1.6km E-W 150 meters AGL
7
 SADME flown 1956 6.4km E-W 150 meters AGL
8
 SADME flown 1956 1.6km E-W 150 meters AGL
9
 SADME flown 1956 1.6km E-W 150 meters AGL
10
 SADME flown 1957 1.6km E-W 150 meters AGL
19
 SADME/BMR flown 1963 3.2km E-W 460 meters AGL

 

Map 2: Private Company Regional Surveys

No
 For When Spacing Direction Altitude
2
 Murray Basin Oil flown 1955 6.4 & 12.8km E-W 910 meters baro
5
 Exoil flown 1964/5 2.4 & 16.0km N-S 610 & 760 meters baro

Note: No 9 (marked in green on the map) was flown by CGG of France for Hematite/BHP. The offshore area was flown in 1968 using East-West Airlines DC-3 VH-PWM.

 

Map 3: Low Level Aeromagnetic Surveys for Government

No
 For When Spacing Direction Altitude
a
 SADME flown 1956 0.4km E-W 90 meters draped
b
 SADME flown 1960 0.4km N-S 90 meters AGL
c
 SADME flown 1960 0.8km N-S 90 meters AGL
d
 SADME flown 1960 0.8km E-W 90 meters AGL
e
 SADME flown 1960 0.8km NE-SW 90 meters AGL

 

There were possibly other aeromagnetic surveys flown by Adastra in South Australia for commercial customers (rather than government departments or commercial companies seeking government assistance) that have not made nor ever will make such lists.

Doug Morrison
17 October 2006