Results 111 to 120 of about 4,836 (216)

Geochemistry data of trachyandesite of Ulindakonda vent agglomerate of Gadwal greenstone belt of eastern Dharwar Craton, India. [PDF]

open access: yesData Brief, 2023
Salumuri NLRR   +5 more
europepmc   +1 more source

Beneficiation of rare earth minerals from Bokan Mountain: Dotson Ridge ore [PDF]

open access: yes, 2014
Thesis (M.S.) University of Alaska Fairbanks, 2014The purpose of this research work was to study the beneficiation of rare earth ore of the Bokan Mountain -- Dotson Ridge deposit, located near Ketchikan, Alaska.
Narantsetseg, Purevbaatar   +1 more
core  

Natural radioactivity, mineralogy and hazard assessment of syenogranites (ornamental stones) using a statistical approach

open access: yesNuclear Engineering and Technology
The study focused on syenogranite and its altered variety, and specifically monitored the activities of 226Ra, 232Th, and 40K using NaI(Tl) gamma-ray spectroscopy.
Sherif A. Taalab   +6 more
doaj   +1 more source

On the crystallization conditions of the Neoproterozoic, high-K calc-alkaline, Bragança Paulista-type magmatism, southern Brasília Orogen, SE Brazil

open access: yesBrazilian Journal of Geology
: Syn-orogenic Neoproterozoic granitic magmatism (ca. 630-600 Ma) in southern Brasília Orogen includes large batholiths of compositionally expanded high-K calc-alkaline granites (lato sensu) and small occurrences constituted by anatetic leuco-granites ...
Andrés Fabián Salazar-Naranjo   +1 more
doaj   +1 more source

Al-Rich Titanites from Mont Blanc Alpine Fissures: Evidence of Ti-Nb-Y-REE Mobility during Water–Rock Interactions

open access: yesCrystals
Titanites can be excellent markers of element transfer in medium-temperature retrograde metamorphism. Euhedral titanites from several alpine fissures from Mont Blanc, particularly those of Périades and Courtes, crystallised at the end of the main quartz ...
Michel Cathelineau, Chantal Peiffert
doaj   +1 more source

Studio petrografico delle vulcaniti del Gruppo Vulcanico Atesino nell'area a Nord di Bolzano [PDF]

open access: yes, 2017
Il lavoro di questa tesina consiste nello studio ottico-petrografico e geochimico di venti campioni di vulcaniti permiane appartenenti al Gruppo Vulcanico Atesino (GVA).
Pacenti, Lorenzo
core  

The possibilities of obtaining long-range supplies of uranium, thorium, and other substances from igneous rocks [PDF]

open access: yes, 1956
Most uranium and thorium which have been produced in the world thus far have been obtained from ores of relatively high grade. Such deposits are not very extensive and are found infrequently.
Brown, Harrison, Silver, Leon T.
core  

Dielectric Behaviour of Allanite

open access: yesJournal of the Mineralogical Society of Japan, 1953
Jitsutaro Takubo, Satoru Kakitani
openaire   +2 more sources

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