Results 21 to 30 of about 2,512,027 (122)
Aceh International Journal of Science and Technology, 2018 The objective of this research is to determine the rare earth elements (REEs) from themonazite minerals content of several tin tailing sands (TTS)of ex-tin mining area in Kuala Raya Singkep Island, Indonesia.
Yanuar Hamzah +2 more
doaj +1 more source
RöENTGENITE-(CE) AND OTHER REE FLUORCARBONATES FROM VEIN no. 35, VISHNEVYE MOUNTAINS, SOUTHERN URALS [PDF]
Минералогия, 2019 A mineral assemblage including REE fluorcarbonates (röntgenite-(Ce) Ca2Ce3(CO3)5F3 , parisite-(Ce) CaCe2(CO3 )3F2 , synchisite-(Ce) CaCe(CO3 )2F and bastnäsite-(Ce) Ce(CO3 )F) was discovered at the dumps of the Vein № 35 open pit, Mt.
A.V. Kasatkin +5 more
doaj +1 more source
Preparation of La2Zr2O7 ceramic from Egyptian black sand
Journal of Radiation Research and Applied Sciences, 2018 Lanthanum zirconates has been suggested as a thermal barrier coating for many high temperature applications. This work is focusing on the possibility of La2Zr2O7 from economic natural resources using Egyptian monazite and zircon.
Mohammed Y. Elkady +5 more
doaj +1 more source
Speculations Linking Monazite Compositions to Origin: Llallagua Tin Ore Deposit (Bolivia)
Resources, 2017 Monazite [(Ce,Th)PO4] from the Llallagua tin ore deposit in Bolivia is characterized by low radiogenic element contents. Previously reported field evidence and mineral associations suggest the mineral formed via direct precipitation from hydrothermal ...
Elizabeth J. Catlos, Nathan R. Miller
doaj +1 more source
Occurrence and behavior of monazite-(Ce) and xenotime-(Y) in detrital and saprolitic environments related to the Serra Dourada granite, Goiás/Tocantins State, Brazil: Potential for REE deposits [PDF]
, 2015 The mode of occurrence, mobility and fractionation of REE have been investigated in the geochemical context of the Serra Dourada Granite, an A-type granitic body located in northern Goi´as State, Brazil.
IV Santana (21833360) +2 more
core +3 more sources
Layered Nb-REE ores in the Tomtor Complex (Arctic Siberia): Formation conditions [PDF]
E3S Web of Conferences, 2019 We study a unique deposit of Nb-REE ores that occur as three orebodies overlying weathered rocks of the Tomtor ultramafic alkaline-carbonatite complex in the northern Sakha Republic (Yakutia).
Lazareva Elena +6 more
doaj +1 more source
, 2020 This study investigates deformation along the retrograde path of the Alps through in-situ Th-Pb dating of hydrothermal (or fissure) monazite-(Ce).
Ricchi, Emmanuelle
core +1 more source
Vestnik MGTURare Earth Elements (REE) and yttrium phosphates monazite-(Ce) and xenotime-(Y), fluorine carbonates synchysite-(Ce) and parisite-(Ce), silicate allanite-(Ce) have been studied in the metamorphic rocks in the area of the Pellapahk Cu-Mo porphyry ...
Kalinin A. A. +2 more
doaj +1 more source
CONCENTRIC-ZONAL AGGREGATE OF REE MINERALS IN FELDSPAR PEGMATITE OF THE VISHNEVYE MOUNTAINS, SOUTH URALS [PDF]
Минералогия, 2019 A concentric-zonal texture of mineral aggregate observed in alkali pegmatite of the Vishnevye Mountains was formed as a result of melt-fluid crystallization in a closed system.
V.A. Popov
doaj
JTSL (Jurnal Tanah dan Sumberdaya Lahan)The community in Central Bangka Regency carried out an increase in illegal mining in 2021, which could potentially threaten the loss of strategic natural resources.
Jhoni Hardiansyah +2 more
doaj +1 more source