Results 201 to 210 of about 7,125 (231)

Petrogenesis of volcanic rocks from the Quaternary Eifel volcanic fields, Germany: detailed insights from combined trace-element and Sr-Nd-Hf-Pb-Os isotope data. [PDF]

Contrib Mineral Petrol
Jansen MW, Münker C, Pakulla JJ, Hasenstab-Dübeler E, Marien CS, Schulz T, Kirchenbaur M, Schneider KP, Tordy R, Schmitt V, Wombacher F.   +10 more
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Melting of Peridotite to 140 Gigapascals

Science, 2010
Under Pressure In order to understand the behavior of materials in the solid deep Earth, it is important to be able to estimate how a material melts at high pressure. To this end, Fiquet et al. (p.
Gaston Garbarino, Hélène Bureau, Julien Siebert, Anne-Line Auzende, Haruka Ozawa, Haruka Ozawa, Alexandre Corgne, Alexandre Corgne, Guillaume Fiquet   +8 more
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Viscosity of peridotite liquid

Earth and Planetary Science Letters, 2004
The Newtonian viscosity of molten peridotite has been determined experimentally at superliquidus and supercooled conditions. The high-temperature determinations were obtained using a concentric cylinder technique employing constant high-speed deformation. The low-temperature determinations have been obtained from the analysis of the glass transition in
DINGWELL D. B, COURTIAL P, GIORDANO, Daniele, NICHOLS A. R. L.   +3 more
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Melt/peridotite interaction in the Southern Lanzo peridotite: Field, textural and geochemical evidence

Lithos, 2007
This paper presents field, petrographic-structural and geochemical data on spinel and plagioclase peridotites from the southern domain of the Lanzo ophiolitic peridotite massif (Western Alps). Spinel lherzolites, harzburgites and dunites crop out at Mt. Arpone and Mt. Musinè. Field evidence indicates that pristine porphyroclastic spinel lherzolites are
Piccardo GB, Zanetti A, Müntener O
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Orogenic, Ophiolitic, and Abyssal Peridotites

2007
"Tectonically emplaced" mantle rocks include subcontinental, suboceanic, and subarc mantle rocks that were tectonically exhumed from the upper mantle and occur:(i) as dispersed ultramafic bodies, a few meters to kilometers in size, in suture zones and mountain belts (i.e., the "alpine," or "orogenic" peridotite massifs - De Roever (1957), Thayer (1960),
Bodinier, Jean-Louis, Godard, Marguerite
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Peridotites, chromitites and diamonds in ophiolites

Nature Reviews Earth & Environment, 2021
Ophiolites, which represent segments of oceanic lithosphere obducted onto the continental crust, provide an important window into processes such as continental rifting, mantle melting, asthenospheric upwelling and cooling of oceanic lithosphere. Traditionally, research has focused on crustal sections of ophiolites.
Dongyang Lian, Dongyang Lian, Jingsui Yang, Jingsui Yang, Huichao Rui, Weiwei Wu, Weiwei Wu   +6 more
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The partial fusion of peridotite

Bulletin Volcanologique, 1964
In a study of the origin of basalt magma, peridotite has been partially fused and the composition of the liquid phases determined.
A. Reay, P. G. Harris
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Weathering crusts on peridotite

Contributions to Mineralogy and Petrology, 2015
Chemical weathering of dark-green massive peridotite, including partly serpentinized peridotite, produces a distinct and remarkable brown weathering rind when exposed to the atmosphere long enough. The structure and mineral composition of crusts on rocks from the Ronda peridotite, Spain, have been studied in some detail.
Bucher, Kurt, Stober, Ingrid, Müller-Sigmund, Hiltrud   +2 more
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Plasticity of Olivine in Peridotites [PDF]

, 1976
Prior to about 20 years ago peridotites were almost universally considered to have crystallized from an ultramafic magma to essentially their present microstructure. This mistaken impression persists today in that virtually all textbooks continue to classify these rocks as igneous.
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The composition of KLB-1 peridotite [PDF]

American Mineralogist, 2009
Electron microprobe analyses of major- and minor-element oxide components for two glassed samples of natural KLB-1 peridotite are presented. One glass was made with the aid of a phosphate flux, and the second glass was made by laser melting of aerodynamically levitated spheroids resulting in homogeneous silicate glass beads.
Jean A. Tangeman, Marc M. Hirschmann, Travis J. Tenner, F. A. Davis   +3 more
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