Donald Mineral Sands Pty Ltd
A subsidiary of Astron Ltd (ASX code: ATR):
|
Location: |
west and north-west of St Arnaud in west Victoria |
|
Regional Geological Setting: |
Quaternary and Tertiary aged sediments of the Murray Basin hosting offshore and shoreline heavy mineral sands deposits. Cambrian aged low grade metamorphic sediments intruded by small stocks and plutons of possible Devonian granitoids. Regional strike-slip and reverse faults transect the area offering potential mineralisation sites.
|
|
Target Metals: |
Zircon, rutile and ilmenite sands in Tertiary sequence. Gold and possible copper in basement lithologies |
|
Mineralisation setting: |
Heavy mineral sands deposited and concentrated in fine grained offshore environment along long uninterrupted coastline; Heavy mineral sands deposited in near-shore strandlines; Orogenic gold in hanging wall to regional reverse faults magmatic gold with copper associated with granitoid intrusions
|
|
Target size: |
10 to 500 M tonnes with 3 to 5 % HMS 0.5 to 1 M oz. gold in basement |
|
Exploration History: |
Extensive database of shallow AirCore drilling for HMS since the 1970s, with a number of strandlines indicated. WIM250 and WIM200 deposits discovered in the 1980s very little drilling and assessment of basement potential
|
|
Exploration Tools: |
Soil sampling, AirCore drilling, aeromagnetic imagery interpretation, radiometric imagery interpretation |
|
Significant Outcomes: |
Soil sampling has generated targets for testing by AirCore drilling. Research shows a number of strandlines with the potential to host coarse to medium grained HMS |
|
Potential: |
Up to 60 M tonnes with 2 to 6% HM in three or more deposits |
|
Status: |
Continuing exploration. |
