 | | Journal (article/letter/editorial) | | a r t 1987 Age and nature of carbonatite emplacement in North Pakistan By M. J. LE BAS, I. MIAN, Leicester...Zusammenfassung Die nordpakistanischen Karbonatite Loe Shilman, Siiai Patti und jene aus dem Ambela-Komplex...Daten zeigen auf, daf~ die Alkaligesteine von Shilman und Silai Patti dem Karbon zuzuordnen sind und...bestimmt an Biotiten aus den Karbonatiten yon Loe Shilman und Silai Patti, ergeben ein Alter von 31 + 2...20 Ma angenommen. Abstract The N Pakistan carbonatites of Loe Shilman, Silai Patti and those within the |  | | Journal (article/letter/editorial) | | which have only 5–10 wt% K2O. Keywords: fenite, carbonatite, sodic metasomatism, potassic metasomatism, K-feldspar...(Traduit par la Rédaction) Mots-clés: fénite, carbonatite, métasomatose sodique, métasomatose potassique...understood to be “alkali silicate and associated carbonatite igneous activity”. Although a side issue from...descent relationship between silicate magma and carbonatite magma”, and therefore the word § E-mail address:...within 20 km of each other; each has coexisting carbonatite and nephelinite. In this contribution, I consider |  | | Report (chapter) | | incompatible-element content. Further fractionation of carbonatite magma can produce mineralizing fluids rich in...rare-earth elements, F, Ba, U and Th. Dolomite carbonatite forms only in the deeper parts of carbonatitic...perhaps at depths greater than 2 km. Explosive carbonatite volcanism can occur giving widespread carbonate...with lavas. Fenitization characterizes ijolite-carbonatite intrusive complexes. Syenitic fenites containing...the Aln6 complex. He maintained that alkali carbonatite magma was the prime intrusive material at Aln6 |  | | Journal (article/letter/editorial) | | cr The petrogenetic relationships among three carbonatite units in the Potash Sulphur Springs alkaline...(1969, p.359) concludedthat micas i" t"h"'iil; carbonatite "represent rhe entire crystallization ;;;d; of... HEATHCOTE AND McCORMICK: PHLOGOPITE AND EVOLUTION OF CARBONATITE IJJ liths found in the Potash Sulphur Springs...ijolite, malignite, nephelinite, phonolite, and carbonatite. Numerous lamprophyre dikes are also present...HEATHCOTE AND McCORMICK: PHLOGOPITE AND EVOLUTION OF CARBONATITE TABLE2. Chemical composition of clinopyroxene |  | | Report (issue) | | Deposit/Site_Name, is meant to identify the area, deposit, district, mine, or occurrence to which the geologic, economic...duplicates, for some areas we report information for a district or area, as well as for specific deposits or mines...Phosphate, potash and natural gas occurrences in Pakistan, in Lee, A.I.N., ed., Fertilizer mineral occurrences...rare-earth minerals in monticellite-calcite carbonatite of the Oka Complex, Quebec: The Canadian Mineralogist...116-131. Dawson, K.R., and Currie, K.L., 1984, Carbonatite-hosted deposits, in Eckstrand, O.R., ed., Canadian |  | | Report (volume) | | carbonatites 53 TWYMAN, J. D. & GITTINS, J. Alkalic carbonatite magmas: parental or derivative ? 85 DAWSON...Outline of the petroIogy of the Kenya rift alkaline province 293 MACDONALD,R. Quaternary peralkaline silicic...petrochemistry of the northern part of the Chilwa alkaline province, Malawi 335 BOWDEN, P., BLACK, R., MARTIN, R...crystallization history of the Velasco alkaline province, eastern Bolivia 403 BARKER, D. S. Tertiary...alkaline magmatism in southern Greenland: the Gardar province 449 LARSEN, L. M. & SORENSEN, H. The Ilimaussaq |  | | Book | | MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...ilmenite Cl) 1stals were found in 2002 in a calcite-carbonatite vein intruding gneiss, together with very large...called "jacupirangite" found in the Jacupiranga carbonatite deposit is ilmenite, in lustrous, flattened crystals...measuring 2.5 X 8 X 12 cm (Pekov, 2000). ASIA PAKISTAN FORMER SOVIBT UNION RUSSIA Dodo deposit near...Compendium of Mineral Discoveries, 1960-2015 Tor Ghar, Khyber Agency, Federally Administered Tribal Areas. Around |  | | Journal (volume) | | February 1987 in Luc Yen (a small city in Yen Bai province, N- Vietnam), this country is an important source...from Burma. On the way from the capital of the province, which is also named Yen Bai, to Luc Yen, a new...and rose quartz from the Borborema Pegmatitic Province (Brazil) irradiated with high gamma doses Barreto...granitic pegmatities located in Borborema Pegmatite Province (BPP, Brazil), it is common to find areas of rose...2009, the new deposit at Davib-Ost farm, Karibib District, was discovered. Miarolitic cavities within granite |
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