Carbonatite (/kɑːrˈbɒnəˌtaɪt/) is a type of intrusive or extrusive igneous rock defined by mineralogic composition consisting of greater than 50% carbonate...
19 KB (2,085 words) - 11:20, 16 June 2024
The Siilinjärvi carbonatite complex is located in central Finland close to the city of Kuopio. It is named after the nearby town of Siilinjärvi, located...
23 KB (3,035 words) - 06:52, 19 May 2024
Natrocarbonatite is a rare carbonatite lava which erupts from the Ol Doinyo Lengai volcano in Tanzania within the East African Rift of eastern Africa...
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Ol Doinyo Lengai (category Carbonatite occurrences)
these are planets which are rich in carbon. Chemical composition: The carbonatites contain a groundmass of fluorite and sylvite, while apatite, galena,...
33 KB (3,680 words) - 06:48, 30 June 2024
coarse-grained variety (or facies) of carbonatite, an intrusive, igneous rock. The fine-grained variety of carbonatite is known as alvikite. The two varieties...
2 KB (161 words) - 11:13, 1 October 2023
typically 1 to 4 m wide. They consist of massive carbonatites that are mostly devoid of vesicles. The carbonatite rocks have been dated as having cooled between...
23 KB (2,328 words) - 20:00, 18 July 2024
was a carbonatite; one of the clues was identification of the eruptive carbonatites found in the western part of the Kaiserstuhl. The carbonatite contains...
26 KB (3,271 words) - 23:20, 10 July 2024
lithium, copper, gold, coal, iron ore, and other minerals. The Khanashin carbonatite in Helmand Province contains 1,000,000 tonnes (980,000 long tons; 1,100...
319 KB (28,666 words) - 21:59, 14 August 2024
The Panda Hill Carbonatite is an apatite and pyrochlore bearing sovite carbonatite located in the Mbeya District of Tanzania. The deposit was found in...
5 KB (479 words) - 15:37, 10 October 2023
a magmatic origin of carbonatite, albeit his finds were only widely accepted after the Ol Doinyo Lengai eruption of carbonatite lava in the 1960s showed...
2 KB (171 words) - 22:38, 12 January 2023
include: Carbonatite and natrocarbonatite lavas are known from Ol Doinyo Lengai volcano in Tanzania, which is the sole example of an active carbonatite volcano...
63 KB (7,676 words) - 15:34, 26 July 2024
variety of leucitite. Kresten, Peter; Troll, Valentin R. (2018). "The Alnö Carbonatite Complex, Central Sweden". GeoGuide. doi:10.1007/978-3-319-90224-1....
3 KB (308 words) - 18:55, 23 February 2024
rifts are characterized by volcanoes that erupt unusual alkali lava or carbonatites. Examples include the volcanoes of the East African Rift. A volcano needs...
89 KB (9,963 words) - 14:06, 14 August 2024
Boninite – Ultramafic extrusive rock high in both magnesium and silica Carbonatite – Igneous rock with more than 50% carbonate minerals Charnockite – Type...
14 KB (2,208 words) - 23:33, 16 April 2024
augite syenite, gabbro, etc. To the west and southwest are Palaeozoic carbonatite complexes at Kangerlussuaq (Gardiner complex) and Safartoq, and basic...
179 KB (16,914 words) - 10:26, 10 August 2024
include: Carbonatite and natrocarbonatite lavas are known from Ol Doinyo Lengai volcano in Tanzania, which is the sole example of an active carbonatite volcano...
56 KB (6,577 words) - 18:17, 8 June 2024
Ngualla is a Proterozoic carbonatite estimated to be about 1,000 million years old and is a plug-like intrusive carbonatite with a diameter of approximately...
8 KB (804 words) - 05:59, 6 August 2022
Carbonatite lava at Ol Doinyo Lengai volcano...
23 KB (2,381 words) - 12:03, 6 July 2024
46 km (29 mi) from Dharmapuri and 199 km (124 mi) from Chamrajnagar. Carbonatite rocks in this site are considered to be the oldest of its kind in South...
11 KB (1,058 words) - 20:06, 25 June 2024
with rare-earth elements include carbonatites, peralkaline granites (pegmatites), and nepheline syenite. Carbonatites crystallize from CO2-rich fluids...
157 KB (16,855 words) - 11:13, 15 August 2024
igneous rocks with other essential minerals are very rare, but include carbonatites, which contain essential carbonates. In a simplified compositional classification...
48 KB (5,656 words) - 02:36, 23 June 2024
Fen Complex (redirect from Fen_carbonatite_complex)
region noted for an unusual suite of igneous rocks. Several varieties of carbonatite are present in the area as well as lamprophyre, ijolite and other highly...
2 KB (207 words) - 15:21, 20 July 2024
mines in the world. Weathering supergene enrichment of an apatite rich carbonatite in Ontario has produced a significant eluvial phosphate ore deposit....
4 KB (439 words) - 23:08, 8 June 2024
granite and syenite and in associated pegmatites. It also occurs in carbonatites and in associated fenites and other metasomatites. Bastnäsite has cerium...
17 KB (1,894 words) - 22:20, 1 March 2024
The Siilinjärvi carbonatite complex, an open-pit mine owned by Yara International, in Siilinjärvi, Finland...
27 KB (3,206 words) - 17:17, 19 May 2024
aluminophosphates, presumably derived from weathering of the Proterozoic Mount Weld carbonatite. The primary commercial interest at the site is targeted towards oxides...
5 KB (409 words) - 04:26, 17 June 2023
tinguaite, lamprophyre micromalignite, lamprophyre micromelteigite, or carbonatite. The Beemerville Alkaline Complex also includes several lamprophyric...
9 KB (1,104 words) - 02:10, 24 June 2024
formed of carbonatite lava and dates from Miocene to Pleistocene. Along with the active Ol Doinyo Lengai, it is one of the very few carbonatite volcanoes...
2 KB (209 words) - 16:05, 15 May 2024
PMID 17807346. S2CID 3101604. Woolley, A. R. (1987). Alkaline Rocks and Carbonatites of the World, Part 1: North and South America. London, British Museum...
33 KB (3,183 words) - 03:32, 14 August 2024
rare type of magma called a carbonatite that is highly enriched in carbonates and low in silica. Cooling bodies of carbonatite magma give off highly alkaline...
51 KB (5,769 words) - 18:41, 25 July 2024