Results 111 to 120 of about 4,888 (235)

Crystallographic mineralogy of allanite implicit in geochemical record of the host rocks [PDF]

, 2008
Thesis (Ph. D. in Science)--University of Tsukuba, (A), no.
星野 美保子
core  

Rare earth elements distribution in topsoil from Ditrău Alkaline Massif area, eastern Carpathians, Romania. [PDF]

Heliyon, 2023
Ion A, Cosac A.
europepmc   +1 more source

Rock weathering along small mountainous rivers: Sierra de las Minas, Guatemala [PDF]

, 2016
Studies of chemical weathering in small mountainous rivers have shown their disproportional role in chemical weathering and delivery of dissolved and particulate materials on a global scale. Previous stream water analyses from La Sierra de Las Minas have
Miller, Laura
core  

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

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

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

, 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  

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

Two-Stage, Extreme Albitization of A-type Granites from Rajasthan, NW India [PDF]

, 2017
Albitization is a common process during which hydrothermal fluids convert plagioclase and/or K-feldspar into nearly pure albite; however, its specific mechanism in granitoids is not well understood. The c.
Baumgartner, Lukas P., Chaudhri, Naveen, Hofmann, Albrecht W., Kaur, Parampreet, Okrusch, Martin, Raczek, Ingrid, Skora, Susanne   +6 more
core  

Dielectric Behaviour of Allanite

Journal of the Mineralogical Society of Japan, 1953
Jitsutaro Takubo, Satoru Kakitani
openaire   +2 more sources

Dielectric Dispersion of Allanite

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