Annual report, EL 673 Milligans East year ending 1-11-1977

Abstract

During 1977 the only work carried out on the permit was to reinterpret the previous geophysical surveys so that any remaining prospective areas could adequately be protected with mineral claims. The results are as follows: There is a possibility of a mineralised trend in the Rocky Knob area. At Milligans East area, if any target should exist, then it must be very close to the Cockatoo Formation. Seven mineral claims have been pegged upon the relinquishment of EL 673. The pending applications (OPF 483 to 489 inclusive) have been lodged in Aquitaine Australia Minerals Pty Ltd's name. This claim group will be referred to as 'Milligans Block'. Although the interpreted SSW-NNE fault is less polarizable than the one at Sandy Creek, and as the dipole-dipole configuration with a dipole length and a leap of l00m does not give results accurately enough, it would be possible to carry out PEM profiles over this fault, which is expected to be conductive, in order to accurately locate drill targets. If this area is then thought worthwhile of further investigation, the exploration should be carried out using the gradient array configuration with the same parameters as in 1977 in other Northern Territory areas. A series of gradient arrays could eventually be set up along an east-west belt as far west as possible until the method is hampered by the occurrence of the thick Slack Shales or the Border Creek Formation to determine if there are other SSWNNE polarizable trends. The previous geophysical works do not yield any information except the fact that the Black Shales are very close to the Cockatoo Formation. If warranted, the previous gradient array could be repeated with a AB = 2,000m gradient array (same parameters as in 1977, elsewhere in the Northern Territory) and to extend westward the geophysical exploration until the method is hampered by the occurrence of the thick Black Shales.