Relinquishment EL 6948, EL 6949 and EL 6957 to report to 10 April 1991.

Abstract

An aeromagnetic survey was commissioned by CRA over the Eastern Amadeus Basin. Interpretation of this survey yielded six anomalies possibly related to diamondiferous diatremes. These anomalies were followed up by a helicopter borne magnetic survey and loam sampling and two ironstone samples were collected from anomaly GH47-3.

Loam sample returned one chromite of low interest. The ironstone samples underwent multielement analysis. There were no anomalous results. One anomaly GH48-2 was followed by ground magnetics and a single percussion drill hole. The ground magnetic survey showed a broad high with much surface noise. Drilling indicates that the anomaly is sourced by magnetic gravels at a depth of 30m. Analysis of BOH material showed no kimberlitic affinities. The area has been adequately tested for diamonds and base metals. There appears to be little potential.