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Sullam, Karratha, Roebourne Shire, Western Australia, Australiai
Regional Level Types
Sullam- not defined -
Karratha- not defined -
Roebourne ShireShire
Western AustraliaState
AustraliaCountry

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Latitude & Longitude (WGS84): 21° 0' 51'' South , 117° 0' 55'' East
Latitude & Longitude (decimal): -21.01425,117.01540
GeoHash:G#: qs70qy2p0
Köppen climate type:BWh : Hot deserts climate
Nearest Settlements:
PlacePopulationDistance
Roebourne2,112 (2013)30.1km
Karratha11,728 (2011)35.4km
Millars Well2,197 (2014)36.6km
Nickol4,289 (2014)37.6km
Point Samson273 (2014)46.6km


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

Australian Plate (Australia Plate)Tectonic Plate
West Australian Element, Western Australia, AustraliaCraton
Warakurna Large Igneous Province, Western Australia, AustraliaGeologic Province
Pilbara Craton, Western Australia, AustraliaCraton

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Bravoite'
Formula: (Fe,Ni)S2
'Chlorite Group'
Millerite
Formula: NiS
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Quartz var: Chalcedony
Formula: SiO2

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Millerite2.CC.20NiS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Bravoite'-(Fe,Ni)S2
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Millerite2.8.16.1NiS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Bravoite'-(Fe,Ni)S2
'Chlorite Group'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
Quartz
var: Chalcedony
-SiO2

List of minerals for each chemical element

HHydrogen
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
OOxygen
O QuartzSiO2
O Quartz (var: Chalcedony)SiO2
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
AlAluminium
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si QuartzSiO2
Si Quartz (var: Chalcedony)SiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S PyriteFeS2
S Bravoite(Fe,Ni)S2
S MilleriteNiS
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Fe PyriteFeS2
Fe Bravoite(Fe,Ni)S2
NiNickel
Ni Bravoite(Fe,Ni)S2
Ni MilleriteNiS

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

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Marshall, A.E. (2000) Low temperature-low pressure ("epithermal") vein deposits of the North Pilbara granite-greenstone terrane, Western Australia. Australian Geological Survey Organisation, AGSO Record 2000/1, 40 pages.


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