on the Earth's surface. A xenocryst is an individual foreign crystal included within an igneous body. Examples of xenocrysts are quartz crystals in a silica-deficient...

after the hypothesized time of Earth's formation. In many other areas, xenocryst (or relict) Hadean zircons enclosed in older rocks indicate that younger...

(2000). Complex geological histories extending for ≥4.0 Ga deciphered from xenocryst zircon microstructures. Earth and Planetary Science Letters, 181(1), 89-102...

The first song to be released from the album was "Tartessos: The Hidden Xenocryst". The song's official video was uploaded to Metal Blade's YouTube channel...

fragments (clasts) up to the size of watermelons. They are a mixture of xenocrysts and xenoliths (minerals and rocks carried up from the lower crust and...

another magma; these crystals are called xenocrysts. Diamonds found in kimberlites are rare but well-known xenocrysts; the kimberlites do not create the diamonds...

pyroxenes and/or olivine phenocrysts are often found in more basic materials. Xenocrysts or rock fragments incorporated during the violent eruptional and depositional...

been brought up from buried continental crust as fragments entrained as xenocrysts within the basalt. Interpretation of a linear northwest–southeast gravity...

from depths of 150 km in the mantle and are mostly composed of crustal xenocrysts, high amounts of magnesium, other trace elements, gases, and in some cases...

and Function 2011 "Biomech - Vals No. 666" 2012 "Tartessos: The Hidden Xenocryst" Formshifter "Behold (God I Am)" "A Path Disclosed" 2014 "1.618" Elements...

melting and generation that makes kimberlites prone to hosting diamond xenocrysts. Despite its relative rarity, kimberlite has attracted attention because...

Archean. Xenocrysts found within 3.94 Ga tonalitic gneisses of the Acasta Gneiss Complex have U–Pb dates of 4.2 Ga. These zircon xenocrysts originally...

pyroxene and quartz. Magma mixing phenomena produced olivine and pyroxene xenocrysts and amphibole reaction rims. Detailed climate data do not exist for the...

of the Fantastic Lava Beds is the presence of anomalous quartz crystal xenocrysts (foreign bodies in igneous rock). Geologists think that they were picked...

rocks and dikes are sometimes hosts for diamonds. The diamonds occur as xenocrysts that have been carried to the surface or to shallow depths by the lamproite...

phenocrysts that grew in the magma, but some may be exotic crystals such as xenocrysts, derived from other magmas, igneous rocks, or from country rock. The ash...

Lakes lavas. The Twin Lakes lava is black, porphyritic and has abundant xenocrysts of quartz (see Cinder Cone). Another group of andesite lava flows called...

recent optically stimulated luminescence age dating on single-grain quartz xenocrysts from basalt flows at S P Crater has yielded more reliable ages of 6.25±0...

fractures. Different from granite, zircon is rare and, if present, it is as xenocrysts. On the other hand, nepheline syenite gneiss contains abundant and large...

N.I., Makavetskas A.R. 2020. Composition and spectroscopy of olivine xenocrysts from the Hawaiian tholeiitic basalts. Uchenye Zapiski Kazanskogo Universiteta...

"Evidence of Enriched, Hadean Mantle Reservoir from 4.2-4.0 Ga zircon xenocrysts from Paleoarchean TTGs of the Singhbhum Craton, Eastern India". Scientific...

feature of these rocks is the presence of large foreign crystals, or xenocrysts, of feldspar and of quartz. Their forms are rounded, indicating partial...

stacks. They are of interest due to their inclusions of xenoliths and xenocrysts, which are believed to represent fragments of the earth's mantle incorporated...

of black porphyritic andesite, which are notable in that they contain xenocrysts of quartz. The Flatiron andesites spread over the southwestern part of...

microscope. Zoning Mineral zoning present. Mineral texture Porphyritic (large xenocryst surrounded by fine crystals), Melange (mix of minerals), Poikilitic (one...

muscovite quartz-monzonite to biotite granodiorite, with rare garnet xenocrysts, per Martens 2009, p. 125, and exhibits relatively high muscovite-biotite...

of xenocrysts and xenoliths embedded in a matrix of minerals typical of serpentine: serpentinite, chlorite, clay minerals, and talc. The xenocrysts (individual...

source of diamond deposits and thus can bring diamonds to the surface as xenocrysts. Additionally, ultrapotassic granites are a known host for granite-hosted...

The most important phenocrystic phase is olivine, which also appears as xenocrysts; other minerals include clinopyroxene, diopside and plagioclase. The groundmass...

quartz crystals, with sparse appearance of olivine and calcic-plagioclase xenocrysts. At dome E, the penultimate dome to be produced, non-bedded deposits with...