Results 91 to 100 of about 2,212 (216)

MINERALOGICAL AND GEOCHEMICAL FEATURES AND CONDITIONS OF BARSUCHY GOLD-SULFIDE-QUARTZ DEPOSIT FORMATION (NORTH-EASTERN TUVA)

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
Gold ore objects in skarns are widespread in geological structures of the Eastern Tuva, but their estimation is considerable difficult due to poor information about mineralogical, geochemical and petrographic peculiarities of ores.
Renat V. Kuzhuget, Ilya R. Prokopyev, Anna A. Redina, Natalia N. Ankusheva   +3 more
doaj   +1 more source

Lithological discrimination and mineralogical mapping using Landsat-8 OLI and ASTER remote sensing data: Igoudrane region, jbel saghro, Anti Atlas, Morocco. [PDF]

Heliyon, 2023
Baid S, Tabit A, Algouti A, Algouti A, Nafouri I, Souddi S, Aboulfaraj A, Ezzahzi S, Elghouat A.   +8 more
europepmc   +1 more source

On the Diorites of the Warwickshire Coal-field [PDF]

Quarterly Journal of the Geological Society of London, 1879
I n a paper communicated to the Geological Society, and published in the 30th volume of the ‘Quarterly Journal,’ I briefly described the microscopical structure and composition of the various masses of igneous rocks which occur in the Carboniferous strata of the Midland Counties, with the exception of those found in
openaire   +1 more source

Note on the ‘Chephren Diorite’

Bulletin de l'institut égyptien, 1933
Andrew Gerald. Note on the ‘Chephren Diorite’. In: Bulletin de l'Institut d'Egypte, tome 16, fascicule 2, 1933. pp. 105-109.
openaire   +2 more sources

Réplique

Revista del Museo de La Plata
Dans la partie littéraire de «Petermanns geographische Mitteilun-gen», 1898, nous trouvons, signé par A. Tornquist,. quelques remarques concernant le rapport préliminaire de notre premiére expédition dans la Cordillére.
Leo Wehrli, Carl Burckhardt
doaj  

Petrogenesis of the Ghooshchi graniete by K- and Si- metasomatism of diorites and Gabbros, western Azerbaijan, Iran [PDF]

, 1998
The Ghooshchi granite has been intruded as an anorogenic, A-type, within-plate granite in an area northwest of Uromiyeh Lake in western Azerbaijan in northwestern Iran (Jahangiri, 1990).
Pouran Behnia, Lorence G. Collins
core  

Geochemistry and Petrogenesis of Igneous Rocks of the Kutuevsky Au-Cu Porphyry Ore Occurrence (Southern Urals)

Georesursy
The petrological and geochemical features of effusive and intrusive rocks of the Kutuevsky Au-Cu porphyry ore occurrence located in the zone of the Main Ural Fault in the Southern Urals were studied.
S. E. Znamensky
doaj   +1 more source

Crystal chemical variations in Ba-rich biotites from gabbroic rocks of lower crust (Ivrea Zone, NW Italy)

, 1993
Biotites from mafic rocks occurring at different stratigraphic levels of the Ivrea-Verbano Mafic Complex are studied. The rocks are gabbros and diorites.
MAZZUCCHELLI, Maurizio, BIGI, Simona, BRIGATTI, Maria Franca, RIVALENTI, Giorgio   +3 more
core   +1 more source

Short-lived active margin magmatism preceding Variscan collision in the Western French Massif Central

BSGF - Earth Sciences Bulletin
This paper presents and discusses new geochronological and petrological data on a suite of calc-alkaline plutons composed predominantly of diorites and tonalites from the West Massif Central.
Berger Julien, Beau-Hurdebourcq Léa, Serrano Julien, Benoit Mathieu, Grégoire Michel, Benmammar Anissa, Duchene Stéphanie, Bruguier Olivier, Baele Jean-Marc   +8 more
doaj   +1 more source

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