 | | Journal (article/letter/editorial) | | 1007/s00710-009-0076-z ORIGINAL PAPER Newania carbonatites, Western India: example of mantle derived magnesium...Abstract The key mineralogical features of the Newania carbonatites, that illustrate their derivation...2006), are the presence of magnesite, graphite and Cr-rich magnetite. Magnesite is an early crystallizing...Cr-rich magnetite and graphite coexist with carbonatite minerals and precipitated from carbonate magma...CO2 and carbonate minerals such as dolomite and magnesite, can be stable in peridotite mantle. Coexistence |  | | Journal (article/letter/editorial) | | MĂ€rz 2002 U-rich pyrochlore in carbonatite of Newania, Rajasthan Shrinivas G. Viladkar, Mumbai, and... I. (2002): U-rich pyrochlore in carbonatite of Newania, Rajasthan. â N. Jb. Miner. Mh. 2002 (3): 97â106;...One of the most important features of the Newania carbonatite is that it hosts Cu and pyrochlore mineralization...phase) of crystallization of carbonatite (rauhaugite) magma at Newania which had elevated concentration...concentration of both Nb and U. Introduction Newania carbonatite is unique among the group of Indian carbonatites |  | | Journal (article/letter/editorial) | | South America and India. In the Indian Subcontinent carbonatites occur in India, Pakistan, Afghanistan...Myanmar. This paper takes an overview of the carbonatite occurrences in the Indian Subcontinent in the...time range (>2400 Ma to <0.6 Ma) from India (Hogenakal, Newania, Sevathur, Sung Valley, Sarnu-Dandali...(Permian Koga and Tertiary Pehsawar Plain Alkaline Complex which includes Loe Shilman, Sillai Patti, Jambil...Geology, RTM Nagpur University, Nagpur (MH) â 440001, India; Email: randive101@yahoo.co.in Tushar Meshram: Department |  | | Journal (article/letter/editorial) | | Carbonates of the magnesite-siderite series from four carbonatite complexes H. A. BUCKLEY AND A. R. WOOLLEY...Road, London SW7 5BD Abstract Carbonates of the magnesite-siderite series have been found and analysed in...in carbonatites from the Lueshe, Newania, Kangankunde, and Chipman Lake complexes. This series has been...until now only by a few X-ray identifications of magnesite and three published analyses of siderite and breunnerite...define the complete solid-solution series from magnesite to siderite. They occur together with dolomite |  | | Journal (article/letter/editorial) | | magnetite, pyrite, forsterite, phlogopite, enstatite, magnesite, diopside, tremolite and spinel. Most of minerals...respectively, suggesting that they were formed in a carbonatite magma. The markedly increased REE concentrations...ratios do not plot within the deïŹned ââmantle carbonatite boxââ, but still lie within the broader range...apatite-bearing carbonate unit within the local basement complex which consists mainly of high-grade metamorphic...apatite- and magnetite-rich member of a primary carbonatite suite. However, the absence of fenitisation eïŹects |  | Rampilova, Maria, Doroshkevich, Anna, Viladkar, Shrinivas, Zubakova, Elizaveta (2021) Mineralogy of Dolomite Carbonatites of Sevathur Complex, Tamil Nadu, India. Minerals, 11 (4) 355 doi:10.3390/min11040355 | Journal (article/letter/editorial) | | of Dolomite Carbonatites of Sevathur Complex, Tamil Nadu, India Maria Rampilova 1, *, Anna Doroshkevich...462066, India; sviladkar@gmail.com Carbonatite Research Centre, Amba Dongar, Kadipani 390117, India Department...of the Sevathur carbonatite complex (Tamil Nadu, India) consists of dolomite carbonatite with a small number...number of ankerite carbonatite dikes. Calcite carbonatite occurs in a very minor amount as thin veins...veins within the dolomite carbonatite. The age (207 Pb/204 Pb) of the Sevathur carbonatites is 801 ± 11 Ma |  | | Journal (article/letter/editorial) | | comparison with the primitive mantle, the average carbonatite has significantly higher Nb/Ta and Zr/Hf ratios...cate-rich rocks of carbonatitic affinity) are complex oxide minerals belonging to the perovskite and...ZrO2 in perovskite from Gornoozerskiy (Ozernyi) complex, Siberia, but these data were not confirmed by...the calculation of the mean Ta2O5 content. f A division between U-rich and ânormalâ pyrochlore is arbitrarily...putative mantle source, or even to the evolution of carbonatite melts/fluids using the data available in the |
|
