Results 31 to 40 of about 13,641 (263)
MINERAL ASSEMBLAGES OF THE SHISHIM MINE IN THE SOUTHERN URALS [PDF]
Минералогия, 2023 Mineralogy and petrography of complex rocks in area of the Shishim mine in the South Urals is studied. Various skarn assemblages with dominant pyroxene, garnet, vesuvianite, monticellite, chlorite and epidote are developed after gabbroids and granitoids.
V.A. Popov, M.A. Rassomakhin
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Magnetite in Sokli carbonatite massif and in Tulppio olivinite [PDF]
Bulletin of the Geological Society of Finland, 1981 Occurrence, ilmenite exsolutions and composition of magnetite in the carbonatite massif of Sokli and in the olivinite of Tulppio have been studied. In the carbonatite massif, magnetite of magmatic carbonatites is hypidio-idiomorphic, contains only very ...
K. Heinänen, H. Vartiainen
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Optimization of Acid Fracturing Process for Carbonate Reservoirs in Daniudi Gas Field
Energies, 2022 The Daniudi gas field is located in the Ordos Basin’s northern section of the Yishan slope. The intertidal–subtidal depositional environment dominates the lithology of the Ma55 sub-member, resulting in a stable, thick-layered dark gray–gray–black ...
Yongchun Zhang +5 more
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Geology, geochemistry and geochronology of the Songwe Hill carbonatite, Malawi [PDF]
, 2017 Songwe Hill, Malawi, is one of the least studied carbonatites but has now become particularly important as it hosts a relatively large rare earth deposit.
Brady, Aoife E. +7 more
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Geochemistry of Monazite within Carbonatite Related REE Deposits
Resources, 2017 Approximately >50% of global rare earth element (REE) resources are hosted by carbonatite related deposits, of which monazite is one of the most important REE minerals. Monazite dominates more than 30 carbonatite-related REE deposits around the world,
Wei Chen +3 more
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Mafic alkaline metasomatism in the lithosphere underneath East Serbia: evidence from the study of xenoliths and the host alkali basalts [PDF]
, 2010 Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
Cvetkovic, V. +4 more
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Journal of the Geological Society of India, 2019 ABSTRACT Based on the field relations, associated rock types and age, the carbonatite-alkaline rock complexes of India, that are spatially related to deep main faults, rifts and shear zones, have been classified in to two major groups, namely: 1. Middle – late Cretaceous, subvolcanic – volcanic complexes (Amba Dongar, Siriwasan, Swangkre,
Anna Gennad’evna Doroshkevich +2 more
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Carbinatitic magmatism evidence in the Quaternary volcanic rocks in the west of Nowbaran, NW of Iran [PDF]
پترولوژی, 2019 The fourteen numbers of ultrabasic volcanoes eruption in the west of Nowbaran are located in the west margin of Iranian central zone near to the Sanandaj-Sirjan zone.
Bahman Rahimzadeh +3 more
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Synthetic Carbonatite Magma [PDF]
Nature, 1959 Judging from the literature during the past decade, there is a growing interest in problems related to the genesis of carbonatites and associated alkaline igneous rocks. The interest has undoubtedly been fostered by the discovery of large reserves of rare earths in these rocks.
Wyllie, P. J., Tuttle, O. F.
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The Fluorapatite P–REE–Th Vein Deposit at Nolans Bore: Genesis by Carbonatite Metasomatism
, 2020 Nolans Bore is a rare earth element (REE) ore deposit in the Reynolds Range, Aileron Province, Northern Territory, Australia. It consists primarily of fluorapatite and alteration products thereof, surrounded by a diopside-dominated selvage.
M. Anenburg, J. Mavrogenes, V. Bennett
semanticscholar +1 more source