a rare intrusive or extrusive igneous rock, mostly found in Africa, that contains a high proportion of carbonate minerals
carbonatite in American English
(kɑːrˈbɑnəˌtait)
noun
a calcitic or dolomitic carbonate rock emplaced as an igneous intrusion
Word origin
[carbonate + -ite1]-ite is a suffix of nouns denoting esp. persons associated with a place, tribe, leader,doctrine, system, etc. (Campbellite; Israelite; laborite); minerals and fossils (ammonite; anthracite); explosives (cordite; dynamite); chemical compounds, esp. salts of acids whose names end in -ous (phosphite; sulfite); pharmaceutical and commercial products (vulcanite); a member or component of a part of the body (somite)
Examples of 'carbonatite' in a sentence
carbonatite
Sideritic carbonatite forms thin veins in ankeritic carbonatite.
S.G. Viladkar 1981, 'The carbonatites of Amba Dongar, Gujarat, India', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume53/sgs_bt_053_1_pages_017_028.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Trace element distributions and abundances indicate within-plate tectonic setting of the carbonatite.
Dmitry R. Zozulya, Kåre Kullerud, Erling K. Ravna, Yevgeny E. Savchenko, EkaterinaA. Selivanova, Marina G. Timofeeva 2018, 'Mineralogical and Geochemical Constraints on Magma Evolution and Late-Stage CrystallizationHistory of the Breivikbotn Silicocarbonatite, Seiland Igneous Province in NorthernNorway: Prerequisites for Zeolite Deposits in Carbonatite Complexes', Mineralshttps://www.mdpi.com/2075-163X/8/11/537. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Small intrusions of aillikite and carbonatite may represent remobilised mantle metasomites.
Brian G.J. Upton 2013, 'Tectono-magmatic evolution of the younger Gardar southern rift, South Greenland',Geological Survey of Denmark and Greenland Bulletinhttp://www.geus.dk/publications/bull/nr29/nr29_p001-124.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
An aureole of dominantly sodic fenites has been developed around the carbonatite.
S.G. Viladkar, P.B. Pawaskar 1989, 'Rare earth element abundances in carbonatites and fenites of the Newania complex,Rajasthan, India', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume61/sgs_bt_061_1_pages_113_122.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Analogues of these varieties are present in many carbonatite complexes.
Evgeniy Kozlov, Ekaterina Fomina, Mikhail Sidorov, Vladimir Shilovskikh 2018, 'Ti-Nb Mineralization of Late Carbonatites and Role of Fluids in Its Formation: Petyayan-VaraRare-Earth Carbonatites (Vuoriyarvi Massif, Russia)', Geoscienceshttp://www.mdpi.com/2076-3263/8/8/281. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Dates of the carbonatite range from 334 to 392 my.
H. Vartiainen, A.R. Woolley 1974, 'The age of the Sokli carbonatite, Finland, and some relationships of the North Atlanticalkaline igneous province', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume46/sgs_bt_046_1_pages_081_091.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
They most likely represent altered kimberlites with a high degree of crustal contamination and carbonatite admixture.
H. Vartiainen, P. Kresten, Y. Kafkas 1978, 'Alkaline lamprophyres from the Sokli complex, northern Finland', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume50/sgs_bt_050_pages_059_068.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Hydrothermal fluorite ore veins occur outside of the carbonatite bodies and are emplaced in wallrock syenite.
Cheng Xu, Linjun Wang, Wenlei Song, Min Wu 2010, 'Carbonatites in China: A review for genesis and mineralization', Geoscience Frontiershttp://www.sciencedirect.com/science/article/pii/S1674987110000125. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
This approach allowed detecting potential enrichment zones characterized by an abundance of fluorapatite and pyroxene, as well as dolomite-carbonatite (beforsite).
Robert Zimmermann, Melanie Brandmeier, Louis Andreani, Kombada Mhopjeni, Richard Gloaguen 2016, 'Remote Sensing Exploration of Nb-Ta-LREE-Enriched Carbonatite (Epembe/Namibia)', Remote Sensinghttp://www.mdpi.com/2072-4292/8/8/620. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The fragments of carbonatite bodies are observed throughout the quartz veins, where they have been preserved.
Larisa Y. Kabanova, Vsevolod N. Anfilogov, Mariya A. Igumentseva, Nadezhda K. Nikandrova 2017, 'Carbonatite shows on the quartz deposits “Vein 175” (Ufalei block, the Southern Urals)', Литосфераhttps://test.lithosphere.ru/jour/article/view/106. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)