| | Journal (article/letter/editorial) | Nb and REE Distribution in the Monte Verde Carbonatite–Alkaline–Agpaitic Complex (Angola) Sandra Amores-Casals... Abstract: The Angolan alkaline–carbonatite complex of Monte Verde has a semi-circular shape...arranged minor bodies of other alkaline rocks and carbonatite magmatic breccias. This rock association is hosted...are concentrated in pyrochlore crystals in the carbonatite and alkaline breccias. Magmatic fluornatropyrochlore...crystallize as late minor secondary minerals into carbonatite breccia and alkaline dykes. In conclusion, the | | Shavers, Ethan J., Ghulam, Abduwasit, Encarnacion, John, Bridges, David L., Luetkemeyer, P. Benjamin (2016) Carbonatite associated with ultramafic diatremes in the Avon Volcanic District, Missouri, USA: Field, petrographic, and geochemical constraints. Lithos, 248. 506-516 doi:10.1016/j.lithos.2016.02.005 | Journal (article/letter/editorial) | Carbonatite associated with ultramafic diatremes in the Avon Volcanic District, Missouri...Bridges, David L., Luetkemeyer, Patrick B., Carbonatite associated with ultramafic diatremes in the Avon...to the journal pertain. ACCEPTED MANUSCRIPT Carbonatite associated with ultramafic diatremes in the Avon...presence of a primary magmatic carbonatite phase among ultramafic dikes, pipes, and diatremes of olivine...δ13CVPDB values gradational between primary carbonatite values and country rock values. Unaltered sedimentary | | Campeny, Marc, Kamenetsky, Vadim S., Melgarejo, Joan C., Mangas, José, Manuel, José, Alfonso, Pura, Kamenetsky, Maya B., Bambi, Aurora C.J.M., Gonçalves, Antonio O. (2015) Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on the parental melt. Lithos, 232. 1-11 doi:10.1016/j.lithos.2015.06.016 | Journal (article/letter/editorial) | Angola. AC CE P Four outcrops of carbonatite lavas have been identified in this region and considering the...interpret these lava types as having been a single carbonatite suite related to the same parental magma. We... Introduction There are more than 500 known carbonatite localities worldwide (Woolley and PT Kjarsgaard...from explosive volcanism, while effusive NU carbonatite lavas have only been described in 14 localities...localities by Woolley and Church, MA 2005. Carbonatite magmas most probably represent low-degree partial | | | Report (issue) | in the Bokan Mountain district of Alaska, carbonatite dikes, and apatite-bearing iron deposits in the........................................ . Carbonatite Dikes ................................ . 22 9...probable potential resources, in short tons, of carbonatite dikes in three districts . . . . . . . . . III...percent Th0 2 and 0 15 percent UaOs. Some carbonatite dikes, although generally not as high grade as the...veins, contain resources of thorium. Car't~natite dikes in the following six districts were investigated: | | | Report (chapter) | the Caledonian orogenic front and in the Assynt region consists of several west-vergent major thrust sheets...restored sections across the Moine Thrust zone in the region of the Loch Ailsh and Loch Borralan alkali intrusions...shows a section across: (1) the western foreland region comprising Archaean basement (Lewisian complex)...(1983); C shows location of the Loch Urigill carbonatite; BT marks the possible Borralan Thrust proposed...2007). Recently a new geological map of the Assynt region has been published by the British Geological Survey | | | Journal (volume) | of Szeged On the cover: Map of the Carpathian region with type localities of new mineral species, rocks...History of mineralogy: The role of the Carpathian region in the 18th century..............................investigation of redox processes. For Fe, the pre-edge region provides an almost direct way of quantifying the...Munella region (Albania) in improving the fertility features of a sandy soil from Divjaka region (Albania)...tested as fertilizers for the sandy soils of Divjaka region (Central-western Albania). The experiment was realized | | | Book (volume) | APACHECOUNTY, ARIZONA M. F. Roden and D. Smith 2•E OKA CARBONATITE CO•PLEX: R•GNETI2• COF•OSITIONS AND 'iHE RELATED...1000øC and would suggest that in this temperature region the geotherms for areas of different surface heat...identified in diamonds (Chrenko et al., 1967). region A cloud-like in a diamond from Arkansas appeared...quadrilaterial (Fig. 4) this inclusion plots close to the region of omphacitic pyroxene, but is distinct from them...available but at present serve to indicate the general region in which crystallization may have occurred. type |
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