Results 111 to 120 of about 2,562 (192)

Petrogenesis of Miocene volcanic arc rocks over the Chilean- Pampean flat-slab segment of the Central Andes constrained by mineral chemistry

Geologica Acta, 2014
Miocene arc volcanism is manifested widely in the Valle del Cura-El Indio belt region (29°30´–30° South latitude), in the southern Central Andes of Argentina and Chile.
V.D. LITVAK, S. POMA
doaj  

Archean eclogite-facies oceanic crust indicates modern-style plate tectonics. [PDF]

Proc Natl Acad Sci U S A, 2022
Ning W, Kusky T, Wang L, Huang B.
europepmc   +1 more source

Pyroxenite xenoliths from Marsabit (Northern Kenya): evidence for different magmatic events in the lithospheric mantle and interaction between peridotite and pyroxenite [PDF]

, 2018
Garnet-bearing and garnet-free pyroxenite xenoliths from Quaternary basanites of Marsabit, northern Kenya, were analysed for microstructures and mineral compositions (major and trace elements) to constrain the thermal and compositional evolution of the ...
Altherr, Rainer, Kaeser, Benjamin, Kalt, Angelika, Olker, Bettina, Pettke, Thomas   +4 more
core  

Paleozoic subduction of the southern Dunhuang Orogenic Belt, northwest China: metamorphism and geochronology of the Shuixiakou area

Geodinamica Acta, 2018
Amphibolites in the Shuixiakou area of the southern Dunhuang Orogenic Belt, southernmost Central Asian Orogenic Belt (CAOB), occur as lenses within hornblende-biotite-plagioclase gneiss or pelitic schist, exhibiting block-in-matrix feature of tectonic ...
Hao Y. C. Wang, Qian W. L. Zhang, Hong-Xu Chen, Jia-Hui Liu, Hui C. G. Zhang, Van Tho Pham, Tao Peng, Chun‑Ming Wu   +7 more
doaj   +1 more source

The origin and role of fluid associated with lower crustal metamorphism [PDF]

, 2013
科学研究費助成事業(科学研究費補助金)研究成果報告書：基盤研究(B)2008-2011課題番号 ...
Tsunogae Toshiaki, 角替 敏昭
core  

Pristine microstructures in pseudotachylytes formed in dry lower crust, Lofoten, Norway. [PDF]

Philos Trans A Math Phys Eng Sci, 2021
Dunkel KG, Morales LFG, Jamtveit B.
europepmc   +1 more source

Petrography, Mineral Chemistry and Geothermobarometry of Andalusite- Bearing Schists North of Azna (Northern Sanandaj-Sirjan Zone, Iran)

Journal of Economic Geology, 2016
Introduction The area studied is located north of Azna (Lorestan Province) in a small portion of the Sanandaj – Sirjan structural zone (Mohajjel et al., 2003).This area is part of the Zagros orogenic belt, formed by the opening and closure of Neotethyan
Karim Abdollahi Silabi, Seyed Mohsen Tabatabaei Manesh, Somaye Karimi   +2 more
doaj  

Precambrian crustal evolution and Cretaceous–Palaeogene faulting in West Greenland: Origin and evolution of the Kangâmiut mafic dyke swarm, West Greenland [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2006
The Kangâmiut dyke swarm in West Greenland intruded Archaean terrains at 2.04 Ga, and its northern portion was subsequently metamorphosed to granulite facies during the Nagssugtoqidian orogeny(c. 1.8 Ga).
Lesher, Charkes E., Mayborn, Kyle R.
doaj  

Massive methane fluxing from magma-sediment interaction in the end-Triassic Central Atlantic Magmatic Province. [PDF]

Nat Commun, 2021
Capriolo M, Marzoli A, Aradi LE, Ackerson MR, Bartoli O, Callegaro S, Dal Corso J, Ernesto M, Gouvêa Vasconcellos EM, De Min A, Newton RJ, Szabó C.   +11 more
europepmc   +1 more source

Arc-related Alaskan type magmatism: evidence from pyroxenites associated with the Pakkanadu alkaline-ultramafic complex, Southern India

Frontiers in Earth Science
Petrological and major-trace element mineral chemistry studies have been carried out on pyroxenites from the Pakkanadu alkaline-ultramafic complex from the southern India to understand their origin and nature of magma responsible for ultramafic magmatism
Jiten Pattnaik, Jiten Pattnaik, Ankur Ashutosh, P. A. Janaarthanan, Fanus Viljoen, Rajesh K. Srivastava, Henriette Ueckermann   +6 more
doaj   +1 more source