Übersetzung für 'pyroxene' von Englisch nach Deutsch

pyroxene

Pyroxen {m} [Mineralgruppe]mineral.

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pyroxene-hornblendite [also: pyroxene hornblendite]

Pyroxen-Hornblendit {m}geol.

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pyroxene-peridotite

Pyroxen-Peridotit {m}geol.

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olivine-pyroxene-hornblendite

Olivin-Pyroxen-Hornblendit {m}geol.

pyroxene-hornblende-gabbro

Pyroxen-Hornblende-Gabbro {m}geol.

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plagioclase-bearing pyroxene-hornblendite

Plagioklasführender Pyroxen-Hornblendit {m}geol.

• Harzburgite typically forms by the extraction of partial melts from the more pyroxene-rich peridotite called lherzolite.
• The upper mantle of Earth is composed mainly of olivine and pyroxene minerals. Pyroxene and feldspar are the major minerals in basalt, andesite, and gabbro rocks.
• It consists essentially of major but variable amounts of olivine and calcic plagioclase along with minor pyroxene.
• These conditions are created by the high-temperature fractionation of highly magnesian olivine or pyroxene, which causes a relative iron-enrichment in the residual melt.
• This process occurs by hydration of ferromagnesian minerals, particularly hornblende, which may adsorb up to 5% H2O, and by conversion of pyroxene to hornblende during melting or fractionation at temperatures below the pyroxene stability field.

• The spectrum of this object indicates that it is an S-type asteroid with both low and high calcium forms of pyroxene on the surface, along with less than 20% olivine.
• The pyroxene-rich rocks, which result from the type of contact metamorphism known as pyroxene-hornfels facies, have siliceous sediment or basaltic protoliths, and are respectively metapelites and metabasites.
• Gabbroic pegmatites typically consist of exceptionally coarse interlocking pyroxene and plagioclase.
• He focused his research mainly the experimental study of pyroxene-bearing systems, such as acmite, Titanium-bearing pyroxene, and fassaite, in order to understand the genesis of nephelinitic magma.
• Metamorphic temperatures were determined based upon the measured oxygen fugacity, using the two-pyroxene and olivine-spinel geothermometry methods.

• Small grains of hornblende and pyroxene are also found where the pyroxene is associated with biotite.
• The seatbelt basalt is a highly-vesicular, olivine-normative, basalt with phenocrysts of zoned pyroxene and olivine within a matrix of pyroxene and plagioclase.
• Kushiroite is a rare mineral of the pyroxene group, with formula CaAlAlSiO6.
• El Negrillar has erupted basaltic andesite containing olivine, andesite containing either olivine-pyroxene, pyroxene or pyroxene-hornblende, and dacite.
• Eclogite facies is typically encountered around 80–100 km depth and is characterized by the presence of green omphacitic pyroxene and red pyrope garnet.

• The mineral composition is variable, but commonly contains mica and pyroxene while porphyroblasts of pyroxene, cordierite or andulusite also develop.
• Most of the mantle xenoliths at Kilbourne Hole are composed of lherzolite, a rock composed mostly of olivine and pyroxene.
• The pyroxene group consists of 21 mineral species. Pyroxenes have a general structure formula of XY(Si2O6), where X is an octahedral site, while Y can vary in coordination number from six to eight.
• Uralite is a particular hydrothermally altered pyroxenite; during autogenic hydrothermal circulation the primary mineralogy of pyroxene and plagioclase, etc.
• One example reaction is an exchange of Fe2+ and Mg2+ within garnet and clinopyroxene.