carbonatite


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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 ?
This project will make a step-change in exploration models for alkaline and carbonatite provinces, using mineralogy, petrology, and geochemistry, and state-of-the-art interpretation of high resolution geophysics and downhole measurement tools, to make robust predictions about mineral prospectivity at depth.
2013) Stratum Upper series Shiqianfeng Formation Permian Middle series Shihezi Formation Upper Lower series Shanxi Paleozoic Formation Upper series Taiyuan Formation Carboniferous Middle Benxi series Formation Main Thickness (m) main lithology sedimentary facies mud shale, 100-250 paralic lakes sandstone the upper is pelite intercalating sandstone; 120-570 lakes, rivers lower is interbedded sandstone and shale coal seam, 100-400 delta and sandstone, tidal flat mud shale coal seam, sandstone, mud shale, 50-400 tidal flat and carbonatite coal seam, interbedded sandstone and 0-560 lagoon and shale, tidal flat intercalating carbonatite Table 3.
In addition to programs such as the Food Zone, it is conceivable that the successful mining of the Khanneshin carbonatite rare earths could also contribute to improving Afghanistan's economy, cutting off financing to the Taliban through job creation and the building of local infrastructure.
ALLUVIAL DEPOSITS AND PEGMATITE VEINS CONTAINING TANTALUM AND NIOBIUM ("COLTAN") IN THE REGION OF AGUAMENA-PARGUAZA, CEDENO MUNICIPALITY AND RARE EARTH DEPOSITS ASSOCIATED WITH CARBONATITE FROM CERRO IMPACTO, AMAZONAS STATE, VENEZUELA
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.
REEs can only be found in two types of rocks: carbonatite and peralkaline, one of 17 found in the periodic table.
The EC11-048 intersected REE mineralised carbonatite over its entire length, returning 2.
Elk Creek holds exploration lease and option to purchase agreements (the 'Landowner Agreements') with the underlying property owners, to explore, evaluate and acquire the Elk Creek carbonatite property in southern Nebraska.