Log In
Bremen occurrence (Bremen granite-syenite complex), Karasburg West, ǁKaras Region, Namibiai
| Regional Level Types | |
|---|---|
| Bremen occurrence (Bremen granite-syenite complex) | Occurrence |
| Karasburg West | Constituency |
| ǁKaras Region | Region |
| Namibia | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
27° 52' 0'' South , 17° 55' 59'' East
Latitude & Longitude (decimal):
Type:
Age:
553 ± 13 to 514 ± 9 Ma
Dating method:
Rb-Sr
Reference for age:
Allsopp, H. L., Kostlin, E. O., Welke, H. J., Burger, A. J., Kroner, A., & Blignault, H. J. (1979). Rb-Sr and U-Pb geochronology of late Precambrian-early Palaeozoic igneous activity in the Richtersveld (South Africa) and southern South West Africa. Transactions of the Geological Society of South Africa, 82(2), 185-204.
Köppen climate type:
Other/historical names associated with this locality:
Bremen complex
Bremen Farm 4. Consists of a series of syenites, granites and some hybrid rocks that form an arcuate, sheeted complex, as if part of a multiphase ring structure.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
3 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Alkali Feldspar' References: |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ 'Mica Group' References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Riebeckite Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2 References: |
| ⓘ Zircon Formula: Zr(SiO4) References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Riebeckite | 9.DE.25 | ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2 |
| Unclassified | |||
| ⓘ | 'Alkali Feldspar' | - | |
| ⓘ | 'Mica Group' | - | |
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| H | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| F | Fluorine | |
| F | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Na | Sodium | |
| Na | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Cl | Chlorine | |
| Cl | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Ca | Calcium | |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Fe | Iron | |
| Fe | ⓘ Riebeckite | ◻[Na2][Fe32+Fe23+]Si8O22(OH)2 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
Geochronology
Mineralization age: Cambrian : 512 ± 12 MaImportant note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.
| Geologic Time | Rocks, Minerals and Events | ||||||
|---|---|---|---|---|---|---|---|
| Phanerozoic | |||||||
| Paleozoic | |||||||
| Cambrian | |||||||
| Cambrian Series 2 |
| ||||||
Other Regions, Features and Areas containing this locality
AfricaContinent
African PlateTectonic Plate
- Kalahari basinBasin
- Namaqua-Natal BeltOrogenic Belt
Southern Africa
- Orange River Pegmatite BeltPegmatite Field
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Bremen occurrence, Karasburg West, ǁKaras Region, Namibia