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 ?
net (SNET) has ordered and received additional analyses on the 2 samples that resulted in the discovery of a new carbonatite occurrence with anomalous rare earth metal values on their Eldor property in northern Quebec.
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.
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.
There are an estimated 1 million metric tons of rare earth elements within the Khanneshin carbonatite in Helmand Province and an estimated 1.
Igneous rocks of a carbonate composition do occur rarely, typically as intrusive or extrusive carbonatite.
They also provide a good explanation of where REEs tend to be located, from iron and carbonatite deposits to lateritic, placer, peralkaline, vein, and other deposits.
As such we look forward to further tenements in this zone being granted, in particular the southern extension to the phosphate carbonatite host rock discovery at TE where we announced an initial JORC resource in June this year.
Mineralization at Ngualla in southern Tanzania is similar in style to Mt Weld (Lynas Corporation Ltd) in Western Australia, being rare earth enrichment in the deeply weathered regolith profile of a large carbonatite.
REEs can only be found in two types of rocks: carbonatite and peralkaline, one of 17 found in the periodic table.
19) Potentially recoverable uranium associated with phosphates, non-ferrous ores, carbonatite, black schist and lignite range between 10 MtU and twenty-two MtU; Ibid.
Rather, in order to make carbonatite lavas, all you need is a very low melt fraction of 0.