Results 101 to 110 of about 10,968 (233)

(Table 8) Analyses of amphibole from ODP Hole 111-504B

, 1989
(Table 8) Analyses of amphibole from ODP Hole 111 ...
Ishizuka, Hideo, Hideo Ishizuka (6967745)   +1 more
core   +1 more source

Experimental study of the interaction of model garnet-harzburgite with H2O – CO2 – (K, Na)Cl fluids at 5 GPa and 1 100 °С

Vestnik MGTU
In modern petrological and geochemical literature, considerable attention is paid to the issue of the transformation of mantle rocks during their interaction with fluids and melts of various origins.
Butvina V. G., Limanov E. V.
doaj   +1 more source

Petrological constraints on the high-Mg basalts from Capo Marargiu (Sardinia, Italy). Evidence of cryptic amphibole fractionation in polybaric environments

, 2018
This study deals with the textural and compositional characteristics of the calc-alkaline stratigraphic sequence fromCapoMarargiu Volcanic District (CMVD; Sardinia island, Italy).
Bachmann, Olivier, Scarlato, Piergiorgio, Vanni Tecchiato, Tecchiato, Vanni, Perinelli, Cristina, Gaeta, Mario, Mario Gaeta, Silvio Mollo, Olivier Bachmann, Mollo, Silvio, Cristina Perinelli, Piergiorgio Scarlato   +11 more
core   +1 more source

An analytical electron microscopic study of a pyroxene-amphibole intergrowth [PDF]

, 1981
Samples of a garnet granulite from the mafic border units of the Lake Chatuge, Georgia alpine peridotite body were found to contain lamellar intergrowths of a pargastic amphibole in augite having the typical appearance of an exsolution feature.
Andrew M. Isaacs, John W. Valley, Eric J. Essene, Philip E. Brown, Donald R. Peacor, Essene, Eric J., Brown, Philip E., Peacor, Donald R., Valley, John W., Isaacs, Andrew M.   +9 more
core   +1 more source

Amphibole megacrysts as a probe into the deep plumbing system of Merapi volcano, Central Java, Indonesia

, 2017
Amphibole has been discussed to potentially represent an important phase during early chemical evolution of arc magmas, but is not commonly observed in eruptive arc rocks.
Troll, V.R., Chadwick, J.P., Luigi Dallai, Weis, F.A., Franz A. Weis, Valentin R. Troll, Bernhard Schulz, Peters, S.T.M., Dallai, L., Stefan T. M. Peters, Schulz, B., Jane P. Chadwick   +11 more
core   +2 more sources

Poikilitic hornblende pyroxenite in the southern end of the Abukuma Mountains, Northeast Japan, as result of adakitic magmatism

Frontiers in Geochemistry
Amphibole plays a pivotal role in mediating the flux of volatiles and partial melting that ultimately contribute to arc magmatism. The influence of amphibole from the lower crust to the upper mantle remains unclear due to limited opportunities for ...
Akira Wakazono, Mayuko Fukuyama, Keita Itano, Yumiko Harigane, Akihiro Tamura, Tomoaki Morishita, Tomoaki Morishita   +6 more
doaj   +1 more source

Experimental time constraints on the kinetic and chemistry of amphibole at deep crustal levels

, 2020
Aiming to improve the current knowledge about amphibole growth kinetics at deep crustal levels, new amphibole growth rate data are provided. Our findings, indeed, may be useful to correctly interpret the textural features of amphibole-bearing mafic ...
Perinelli, Cristina, Tecchiato, Vanni, Bonechi, Barbara, Gaeta, Mario, Fabbrizio, Alessandro   +4 more
core   +1 more source

The Petrogenesis and Geological Implications of the Sanggeda Gabbros, Southern Tibet: Insights from the Amphibole Crystal Population

Applied Sciences
Amphibole is an important mineral during the differentiation of arc magmas but rarely as a phenocryst in arc lavas or eruptive pyroclastic rocks. The Sanggeda complex, intruded into the ophiolite of the Indus–Yarlung Zangbo Suture Zone (IYZSZ), Zedong ...
Xiumin Jiang, Zhaohua Luo, Xiao Liu
doaj   +1 more source

The signature of amphibole in mafic alkaline lavas, a study in the northern Canadian Cordillera

, 1995
Despite evidence for its involvement, the importance of amphibole in controlling the compositions of mafic alkaline magmas remains under-appreciated. Relatively small variations in large ion lithophile elements (LILE) with respect to other incompatible ...
Francis, Don, Ludden, John
core   +1 more source

High P‐T Sound Velocities of Amphiboles: Implications for Low‐Velocity Anomalies in Metasomatized Upper Mantle

Geophysical Research Letters
Metasomatized mantle xenoliths containing hydrous minerals, such as amphiboles, serpentine, and phlogopite, likely represent the potential mineralogical compositions of the metasomatized upper mantle, where low seismic velocities are commonly observed ...
Wen‐Yi Zhou, Ming Hao, Dongzhou Zhang, Przemyslaw Dera, Soisiri Charin, Jin S. Zhang   +5 more
doaj   +1 more source