Results 91 to 100 of about 446 (178)

Chronology, Geochemistry and Geological Significance of Epo Granite Intrusion, Southern Jiangxi

Yankuang ceshi, 2014
The Epo intrusion with an exposed area of 200 km2, is mainly composed of biotite monzonitic granite, and is located on the western margin of the Yudu-Qingtang basin, the conjunction of E-W trending Nanling tectonic-magmatic belt and the NNE trending ...
GUO Na-xin, ZHAO Zheng, CHEN Zhen-yu, CHEN Yu-chuan, HOU Ke-jun, WANG Shao-yi   +5 more
doaj   +2 more sources

Experimental re-melting of a continental crust:probing the deep storage zone of Campi Flegrei and Vesuvius magmas [PDF]

Mantle magmas interact with surrounding rocks during their ascent and storage in the continental crust, leading to open system processes as wall rock partial melting.
Scarlato, Piergiorgio, Misiti, Valeria, Perinelli, Cristina, Bonechi, Barbara; id_orcid, Bonechi, Barbara, Fabbrizio, Alessandro, Gaeta, Mario, Palummo, Flavia   +7 more
core   +1 more source

Petrology and U-Pb zircon dating of intrusive rocks from A, C-south, and Dardvay districts, Sangan iron stone mine, Khaf

Journal of Economic Geology, 2013
Sangan magnetite skarn mine is located 300 km southeast of Mashhad, along the eastern part of Khaf-Drouneh volcanic-plutonic belt. Granitoids from three areas within the Sangan mine A, C-North and Dardvay were studied.
Abbas Golmohammadi, Mohammad Hassan Karimpour, Azadeh Malekzadeh Shafaroudi, Seyed Ahamad Mazaheri   +3 more
doaj  

Nanoscale Secondary Ion Mass Spectrometry determination of the water content of staurolite. [PDF]

Rapid Commun Mass Spectrom, 2022
Azevedo-Vannson S, Remusat L, Bureau H, Béneut K, Cesare B, Khodja H, Jiménez-Mejías M, Roskosz M.   +7 more
europepmc   +1 more source

A robust quantification of H2O in silicate glasses through micro-Raman spectroscopy: insights on the compositional effect

Volcanica
Micro-Raman spectroscopy is considered one of the most promising, rapid and economical methods to measure the water content in small volumes (a few μm3) of natural glasses (e.g.
Filippo Ridolfi, Diego González-García
doaj   +1 more source

Physical and morphological characterization of the 19 May 2021 ash cloud deposit at Stromboli (Italy). [PDF]

Sci Rep, 2022
Re G, Pompilio M, Del Carlo P, Di Roberto A.   +3 more
europepmc   +1 more source

Discussion: "Xenoliths in ultrapotassic volcanic rocks in the Lhasa block: direct evidence for crust-mantle mixing and metamorphism in the deep crust" by Wang et al. 2016 (Contributions to Mineralogy and Petrology) 171:62 9

, 2020
Wang et al. (Contrib Mineral Petrol 171:62, 2016a) present data on composition of xenolith from Southern Tibet and conclude that ulrapotassic melts from the region formed by melting mantle, and complex interaction with a crustal component.
Stepanov, Aleksandr, Lowczak, Jessica, Campbell, Ian, Korsakov, Andrey V, Rapp, Robert   +4 more
core   +1 more source

Petrogenesis of isotopically enriched Quaternary magma with adakitic affinity associated with subduction of old lithosphere beneath central Myanmar. [PDF]

Sci Rep, 2022
Sano T, Tani K, Yoneda S, Min H, Htike T, Maung Thein ZM, Ishizuka O, Kusuhashi N, Kono RT, Takai M, Conway CE.   +10 more
europepmc   +1 more source

Origin of Late Cretaceous A-type granitoids in South China: Response to the rollback and retreat of the Paleo-Pacific plate

Open Geosciences
The Late Cretaceous granitic rocks are widely distributed in South China; however, the precise geodynamic mechanism remains controversial. To solve this question, we conducted whole-rock geochemistry, mineral chemistry, zircon U–Pb ages, and Lu–Hf ...
Tian Meng-Yu, Di Yong-Jun, Yang Ming-Jian   +2 more
doaj   +1 more source

Geochemical Classification and Geotectonic Setting of Granitic Gneisses from Southeastern Margin of Western Nigeria Basement

, 2021
Chemical whole-rock major oxides and some trace element analyses were done on granitic-gneiss rocks from Dagbala-Atte District, located on the southeastern margin of western Nigeria Basement Complex. This was meant to classify the rocks and to understand
Asiwaju-Bello, Yinusa Ayodele, Adepoju, Mohammed Olatoye   +1 more
core