Results 21 to 30 of about 6,151 (175)
, 2021 International audienceGranitic pegmatites are the products of extreme liquid differentiation that concentrates incompatible elements (rare metals, alkali and fluxes P, B, F, Li, etc) either by low degree of partial melting (‘first-drop’) or by high ...
Serrano, Julien +6 more
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Geochemical and Isotope Anomalies in Sioma River Gorge, Western Tajikistan
Radiation, 2021 For a better understanding of the previously observed increased natural radioactivity at the confluence of the Varzob and Sioma rivers, Central Tajikistan, the activity concentration of natural radioactive 40K, Th and U daughters as well as of the ...
Djamshed A. Abdushukurov +3 more
doaj +1 more source
Frontiers in Earth Science, 2022 Fluid exsolution in magmas is a process that, in many silicic upper crustal reservoirs, starts at relatively low crystallinities (near liquidus), and precedes the precipitation of many ore bodies, including pegmatites.
Ludmila Maria Fonseca Teixeira +3 more
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Data, 2021 The existence of diagnostic features in the visible and infrared regions makes it possible to use reflectance spectra not only to identify mineral assemblages but also for calibration and classification of satellite images, considering lithological and ...
Joana Cardoso-Fernandes +9 more
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P-T path fluid evolution in the Gross Spitzkoppe granite stock, Namibia [PDF]
Bulletin of the Geological Society of Finland, 2002 The Gross Spitzkoppe granite stock (GSS) is a zoned 30 km2 epizonal intrusion that consists of three main granites: 1) medium-grained biotite granite (marginal), 2) a coarse-grained biotite granite, and 3) a central, porphyritic granite.
S. Frindt, M. Poutiainen
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Dizhi lixue xuebao, 2022 The Ke'eryin area in Sichuan province is one of the large rare metal ore concentration areas in the Songpan–Garze metallogenic belt. Numerous granite pegmatite dikes spread around the Ke'eryin mass.
TANG Wenchun +5 more
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GeosciencesThis study is an attempt to compile and complete structural features of the Kalba-Narym Zone in East Kazakhstan belonging to the western Central Asian Orogenic Belt, which is known to be well-endowed with the occurrence of pegmatite rare-metal ...
Azam Soltani Dehnavi +3 more
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Lithium Anomaly Zone for the Bakennoye Pegmatite, Kazakhstan [PDF]
Geo DataThe Bakennoye deposit is one of the rare-element pegmatite deposits distributed around the Kalba igneous body of the Altai orogenic belt, which was created by the collision of the Siberian and Kazakhstan plates.
Chulho Heo, Ilhwan Oh, Sangjun Pak
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Геологія і корисні копалини Світового океану, 2023 Pegmatite (sample 13/10) exposed in the valley of the Berezivka River (Krynychuvatka village) was studied and its isotopic age was determined by monazite.
Stepanyuk L.M. +4 more
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Brazilian Journal of Geology, 2021 Two porphyritic granitoids (Huaco and Sanagasta) in the Velasco district of the Pampeana Pegmatite Province in Northwestern Argentina are recognized. They are considered the fertile granites of the beryl-bearing pegmatites and can be described as post ...
Fernando Guillermo Sardi +2 more
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