Results 101 to 110 of about 1,895 (220)

Zircon and allanite U-Pb ID-TIMS ages of vaugnerites from the Calzadilla pluton, Salamanca (Spain): dating mantle-derived magmatism and post-magmatic subsolidus overprint

Geologica Acta, 2017
Basic to intermediate high-K, high-Mg mantle-derived rocks occur throughout the Iberian Massif and are particularly important in the Tormes Dome, where vaugnerites form several stocks and small plutons. One of the largest and geochemically most variable
F.J. LÓPEZ-MORO, R.L. ROMER, M. LÓPEZ-PLAZA, M. GÓNZALEZ SÁNCHEZ   +3 more
doaj  

Rare earth element evolution and migration in plagiogranites: a record preserved in epidote and allanite of the Troodos ophiolite

, 2015
Plagiogranites from the Troodos ophiolite in Cyprus are occasionally epidotised, either partially or completely. Epidotisation phenomena include replacement of pre-existing minerals and filling of miarolitic cavities.
Bach, Wolfgang, Anenburg, Michael, Jöns, Niels, Katzir, Yaron, Rhede, Dieter   +4 more
core   +1 more source

Allanite geochronology in the Mount Isa Inlier

Australian Journal of Earth Sciences, 2023
A. D. Burnham, R. Chandler, Y. Amelin, J. Mavrogenes   +3 more
openaire   +1 more source

Sur une allanite filonienne, à Bramans en Maurienne (Alpes occidentales, Savoie)

, 1975
An allanite-albite-hematite vein has been found in the south of the Vanoise massif (Western Alps). It cuts metamorphic schists and sandstones, forming a lens enclosed by Triassic gypsum. Optical, X-ray and chemical data are given for the allanite.
Desmons, Jacqueline
core   +1 more source

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

Nuclear 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, Ahmed M. Ismail, W.M. El Maadawy, Kamal Abdelrahman, Mayeen Uddin Khandaker, Ahmed K. Sakr, Mohamed Y. Hanfi   +6 more
doaj   +1 more source

Unusual LREE-rich, peraluminous, monazite- or allanite-bearing pegmatitic granite in the central Grenville Province, Québec

, 2017
International audienceThis contribution presents an original study combining detailed mapping, petrography, whole-rock geochemistry and geochronological constraints on the recently identified LREE (Light Rare Earth Elements) occurrences associated with ...
Gervais, Félix, Groulier, Pierre-Arthur, Olivier Vanderhaeghe, Solgadi, Fabien, François Turlin, Abdelali Moukhsil, Marc Poujol, Félix Gervais, Turlin, François, Vanderhaeghe, Olivier, Fabien Solgadi, André-Mayer, Anne-Sylvie, Moukhsil, Abdelali, Pierre-Arthur Groulier, Poujol, Marc, Anne-Sylvie André-Mayer   +15 more
core   +1 more source

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

Brazilian 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, Silvio Roberto Farias Vlach   +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

Crystals
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

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

Data Brief, 2023
Salumuri NLRR, Edupuganti NDR, Kudipudi SK, Kandikuppa LP, Medisetty PK, Veeravalli AJ.   +5 more
europepmc   +1 more source

Dielectric Dispersion of Allanite

Journal of the Mineralogical Society of Japan, 1956
Kakitani, Satoru, Kato, Eizo
openaire   +2 more sources