Sullam, Karratha, Roebourne Shire, Western Australia, Australiai
| Regional Level Types | |
|---|---|
| Sullam | - not defined - |
| Karratha | - not defined - |
| Roebourne Shire | Shire |
| Western Australia | State |
| Australia | Country |
| Latitude & Longitude (WGS84): | 21° 0' 51'' South , 117° 0' 55'' East | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Latitude & Longitude (decimal): | -21.01425,117.01540 | ||||||||||||||||||
| GeoHash: | G#: qs70qy2p0 | ||||||||||||||||||
| KΓΆppen climate type: | BWh : Hot deserts climate | ||||||||||||||||||
| Nearest Settlements: |
|
Located 35 kilometres south south-east of Karratha. Ni prospect. North-east of the Elizabeth Hill mine, in the Mount Sholl area.
It is a pyritic chalcedonic silica deposit, with anomalous Ni, hosted in mafic volcanics of the Whundo Group. The deposit was discovered by Westfield Minerals NL in 1969.
The deposit consists of flat lying lenses, and sub-vertical veins up to 50 metres wide, and 250 metres on strike north north-east, in the Nallana Formation.
At the surface, the deposit shows as grey-green chalcedony, with very fine pyrite disseminations, with colloform textures, and vuggy and cellular ferruginous gossan. It contains strong Ni and Co values, moderate Pb and As values, with little in the way of Cu. 1.2% Ni in sulphides.
There is massive iron sulphide and carbonate-sericite alteration in the basalts, interleaved with fine grained siliceous veins. Ore minerals are pyrite, bravoite and millerite.
Regions containing this locality
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsMineral List
4 valid minerals.
Rock Types Recorded
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Alphabetical List Tree DiagramDetailed Mineral List:
| β 'Bravoite' Formula: (Fe,Ni)S2 |
| β 'Chlorite Group' |
| β Millerite Formula: NiS |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| β Muscovite var: Sericite Formula: KAl2(AlSi3O10)(OH)2 |
| β Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
| β Quartz var: Chalcedony Formula: SiO2 |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Millerite | 2.CC.20 | NiS |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| β | var: Chalcedony | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | var: Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified Minerals, Rocks, etc. | |||
| β | 'Bravoite' | - | (Fe,Ni)S2 |
| β | 'Chlorite Group' | - | |
List of minerals arranged by Dana 8th Edition classification
| Group 2 - SULFIDES | |||
|---|---|---|---|
| AmXp, with m:p = 1:1 | |||
| β | Millerite | 2.8.16.1 | NiS |
| AmBnXp, with (m+n):p = 1:2 | |||
| β | Pyrite | 2.12.1.1 | FeS2 |
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | |||
| Sheets of 6-membered rings with 2:1 layers | |||
| β | Muscovite | 71.2.2a.1 | KAl2(AlSi3O10)(OH)2 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| β | Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals, Mixtures, etc. | |||
| β | 'Bravoite' | - | (Fe,Ni)S2 |
| β | 'Chlorite Group' | - | |
| β | Muscovite var: Sericite | - | KAl2(AlSi3O10)(OH)2 |
| β | Quartz var: Chalcedony | - | SiO2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | β Quartz | SiO2 |
| O | β Quartz (var: Chalcedony) | SiO2 |
| O | β Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | β Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| Si | β Quartz (var: Chalcedony) | SiO2 |
| Si | β Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| S | Sulfur | |
| S | β Pyrite | FeS2 |
| S | β Bravoite | (Fe,Ni)S2 |
| S | β Millerite | NiS |
| K | Potassium | |
| K | β Muscovite (var: Sericite) | KAl2(AlSi3O10)(OH)2 |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Fe | Iron | |
| Fe | β Pyrite | FeS2 |
| Fe | β Bravoite | (Fe,Ni)S2 |
| Ni | Nickel | |
| Ni | β Bravoite | (Fe,Ni)S2 |
| Ni | β Millerite | NiS |
Regional 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
| Archean 2500 - 4000 Ma ID: 724052 | Whundo Group Age: Archean (2500 - 4000 Ma) Stratigraphic Name: Whundo Group Description: Basalt, dolerite, chert, ultramafic rocks, sedimentary rocks, rhyolite tuff, agglomerate, banded iron formation, andesite Comments: igneous felsic volcanic; igneous mafic volcanic; synthesis of multiple published descriptions Lithology: Igneous felsic volcanic; igneous mafic volcanic 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] |
| Neoarchean - Mesoarchean 2500 - 3200 Ma ID: 3191737 | Archean volcanic and intrusive rocks Age: Archean (2500 - 3200 Ma) Comments: Pilbara Craton Lithology: Mafic-ultramafic volcanic rocks 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] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
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