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Renner Springs West Manganese Prospects, Renner Springs, Barkly Region, Northern Territory, Australiai
| Regional Level Types | |
|---|---|
| Renner Springs West Manganese Prospects | Group of Prospects |
| Renner Springs | Group of Springs |
| Barkly Region | Region |
| Northern Territory | Territory |
| Australia | Country |
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Latitude & Longitude (WGS84):
18° 17' 19'' South , 133° 39' 49'' East
Latitude & Longitude (decimal):
Type:
Group of Prospects
Köppen climate type:
Renner Springs West is the name for up to twelve un-named manganese outcrops around 15 kilometres west of Renner Springs, covering a north-south area about 10 kilometres between Mount Shillinglaw to just north of Hunters Creek. None of the information so far indicates a mineable resource.
Shallow prospector pits to 1.5 metres depth were dug around 1960. Further outcrops were discovered by Keystone Resources in the 1980's. Neil Scriven conducted limited drilling, until the leases were taken over by OM Holdings in 2008, who operate the Bootu manganese mine to the south. They conducted further drilling in subsequent years. Access is off the Stuart Highway just north of the Helen Springs station turn-off. The track heads due west, and the second track off this was graded by the company north into rugged country, ending at a small dam, a couple of kilometres north of Hunters Creek.
An inferred resource has been given by the company of 0.3 Mt at 21.9% Mn for the area.
An extensive dolomite-siltstone sequence in the Shillinglaw Formation, hosts isolated flat lying, and to a shallow depth manganese deposits. The Shillinglaw Formation consists of thin to medium bedded sandstone, siltstone, quartzic dolostone, dolostone, stromatolithic bioherms, and chert. Manganese is found as a replacement to the sandstone, brecciated siltstone, and dolostone in the basal section of the formation, a geology similar to the Bootu Creek mine. The manganese beds dip shallowly east.
Reddell describes one prospect near Hunters Creek as: 'dips shallow east north-east, has distinct breccia conglomerate texture with massive manganese replacement of the matrix with clasts of country rock, underlain by several narrow 1-2 metre shallow dipping manganese horizons parallel to the bedding, with surface outcrops possibly supergene enriched by the effects of deflation lag'. He also states however most of the outcrops rarely exceed a depth of a few metres.
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
Australia
- North Australian ElementCraton
- Northern Territory
- Kalkarindji Igneous ProvinceGeologic Province
- Tomkinson ProvinceGeologic Province
Australian PlateTectonic Plate
- North Australian Craton
- Tennant Creek TerraneShield
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