xenolith

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Related to Xenoliths: Phreatomagmatic, Phenocrysts, Plutons

xen·o·lith

 (zĕn′ə-lĭth′, zē′nə-)
n.
A rock fragment foreign to the igneous mass in which it occurs.

xenolith

(ˈzɛnəlɪθ)
n
(Geological Science) a fragment of rock differing in origin, composition, structure, etc, from the igneous rock enclosing it
ˌxenoˈlithic adj

xen•o•lith

(ˈzɛn l ɪθ, ˈzin-)

n.
a rock fragment foreign to the igneous rock in which it is embedded.
[1900–05]
xen`o•lith′ic, adj.

xenolith

a fragment of rock embedded in another kind of rock.
See also: Geology
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.xenolith - (geology) a piece of rock of different origin from the igneous rock in which it is embeddedxenolith - (geology) a piece of rock of different origin from the igneous rock in which it is embedded
geology - a science that deals with the history of the earth as recorded in rocks
rock, stone - a lump or mass of hard consolidated mineral matter; "he threw a rock at me"
Translations
xénolite
References in periodicals archive ?
His current research involves taking students to places like Monterrat (West Indies) to study xenoliths and volcanic stratigraphy, Iceland to study volcano-ice interactions, and northern British Columbia to map and collect samples of volcanic deposits, especially from volcanoes that erupted beneath or against ice.
Chemical and isotopic composition of the lower crust beneath the Meguma Lithotectonic Zone, Nova Scotia: Evidence from granulite facies xenoliths.
The sections demonstrate that the mapped surface PGE-enriched mineralization of the margin of the AN-Series, where the presence of magnetic basalt and sandstone xenoliths occur, has continuity at depth.
diamond bearing mantle xenoliths in kimberlite identified at Seitapera,
He discusses the impact of meteors, the geology of shield areas and their associated rocks and minerals, pegmatite and pegmatite minerals, early minerals and rocks associated with the formation of the atmosphere, unusual minerals linked to early limestone-like rocks, greenstone belts and their connection to the earth's gold deposits, marble and quartz, and xenoliths in igneous granite.
Hornblende is found in some of the summit samples, as are small gabbroic, plagioclase-magnetite, and ultramafic xenoliths that may represent disaggregated cumulates (Herzer 1971).
1:00 Shannon Heinle (UND) CLINOPYROXENE, ORTHOPYROXENE, AND OLIVINE CHEMISTRIES IN ULTRAMAFIC TO MAFIC XENOLITHS
This study will produce detailed maps of small but representative areas including: (1) detailed topography to a small contour interval; (2) mapping of lithologic textures including megascopic mineralogy, xenoliths, flow foliations, and phenocryst morphology and distribution; (3) mapping of structures such as joints, fractures, and faults; and (4) surface weathering textures.
The outcrops at their Cristal occurrence are stripped of vegetation by exploration crews, and coated with xenoliths, rock fragments encased in volcanic breccias pushed upward from deep inside the mantle.