Mount Alexander-Kilba Well, Nanutarra Station, Ashburton Shire, Western Australia, Australia
| Latitude & Longitude (WGS84): | 22° 46' 47'' South , 115° 33' 3'' East |
|---|---|
| Latitude & Longitude (decimal): | -22.77994,115.55090 |
| GeoHash: | G#: qefnmmj95 |
| Locality type: | Well |
| Köppen climate type: | BWh : Hot deserts climate |
A tungsten deposit.
Located 120 km south east of Onslow in the Ashburton Mineral District.
Latitude: -22.77994
Longitude: 115.5509
Coordinates: 351248mE, 7480111mN.
15 kilometres south of the Nanutarra Roadhouse. Tungsten and molybdenum occur here but no information could be found, and appears little has been done recently to explore. However, some information was found relating to lead exploration in recent times.
The area around Mount Alexander is a sequence of schist, amphibolite, banded iron formations, dolomite, marble and skarn, quartzite, and black shale of the lower Proterozoic age, as part of the Gascoyne Block. Acid intrusive phases, dolerite dykes and quartz veins have extensively intruded the above.
The strike length of mineralisation is 15 kilometres, and the exploration company names three prospects along its length- Cyprus Gossan, Galena Cave and Dozer Cut. The strike is a folded dolomite/ banded iron formation sequence with patches of lead (as disseminated galena) and zinc, similar in style to Broken Hill Pb-Zn mineralisation.
Ferguson (1999) states base metals found in gossans in amphibolite, schist, dolerite, banded iron formation, slate and quartzite, around a north-east trending anticline with a core of amphibolite.
The mineralisation is in a dolomitic unit, with galena and sphalerite, with lesser chalcopyrite, arsenopyrite, pyrite, pyrrhotite, malachite and brochanite.
Co-ordinates given (assume Minedex) are similar to the Emu Mine. Needs confirmation if the same lode.
Mineral List
13 valid minerals. 2 erroneous literature entries.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramRegional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
| Paleoproterozoic 1600 - 2500 Ma ID: 3193232 | Paleoproterozoic sedimentary rocks Age: Proterozoic (1600 - 2500 Ma) Stratigraphic Name: Wyloo Group Comments: Ashburton Basin Lithology: Shale,sandstone,conglomerate Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
| Paleoproterozoic 1600 - 2500 Ma ID: 923083 | Morrissey Metamorphics Age: Proterozoic (1600 - 2500 Ma) Stratigraphic Name: Morrissey Metamorphics Description: Comprise pelitiic schist with numerous thin layers and lenses of amphibolite and psammitic schists (after feldspathic sandstone) interlayered with calc-silicate rock. Comments: metasedimentary siliciclastic; metasedimentary carbonate; synthesis of multiple published descriptions Lithology: Metasedimentary siliciclastic; metasedimentary carbonate Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5] |
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