carbonatite


Also found in: Dictionary, Wikipedia.

carbonatite

[kär′bän·ə‚tīt]
(petrology)
Intrusive carbonate rock associated with alkaline igneous intrusive activity.
A sedimentary rock that is composed of at least 80% calcium or magnesium.
References in periodicals archive ?
Shaikh, "Fluid-rock interaction in the Kangankunde Carbonatite Complex, Malawi: SEM based evidence for late stage pervasive hydrothermal mineralisation," Open Geosciences, vol.
The Tajno massif is composed of alkaline rocks ranging from syenite to pyroxenite, cut by carbonatite veins (Krystkiewicz & Krzeminski 1992; Ryka 1992; Ryka et al.
(1997): On the last explosions of carbonatite pipe G3b, Gross Brukkaros, Namibia.
(2008) Carbonatite melts and electrical conductivity in the asthenosphere.
It is hardly an accident that America's longest war is in a country that is both a potential pathway for oil and "could fulfill the world's desire for rare-earth and critical minerals." Afghanistan is rich in gold, lead, zinc, mercury, limestone, gypsum, tin, copper, lithium, and uranium, along with lesser-known carbonatite, tourmaline, barite, celestite, fluorite, magnestite and talc.
Factors regulating the behavior of the rare earth elements within the carbonatite process.
South Purulia Shear Zone (SPSZ) (Figure 1, after [10]) consists of mainly granite gneiss, amphibolites, phyllites, schist, carbonatite, and quartz-magnetite-apatite rocks and is of early mesoproterozoic age.
There are an estimated 1 million metric tons of rare earth elements within the Khanneshin carbonatite in Helmand Province and an estimated 1.5 million metric tons in all of southern Afghanistan.
Igneous rocks of a carbonate composition do occur rarely, typically as intrusive or extrusive carbonatite.