(redirected from Xenoliths)
Also found in: Thesaurus, Encyclopedia.
Related to Xenoliths: Phreatomagmatic, Phenocrysts, Plutons


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


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


(ˈzɛn l ɪθ, ˈzin-)

a rock fragment foreign to the igneous rock in which it is embedded.
xen`o•lith′ic, adj.


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"
References in periodicals archive ?
For example, xenoliths in Eastern Australian basalts are a good source of mantle peridotite.
Those granites are sometimes concordant and reveal in some areas xenoliths of ancient metamorphic rocks; they are massive and the most important ones are observed in the SE part of Sesse basin, between Yoko and Mankin [10].
For the study, researchers analyzed xenoliths, which are small fragments from the planet's mantle brought to the surface through volcano eruptions.
The Crust-Mantle and Lithosphere-Asthenosphere Boundaries: Insights From Xenoliths, Orogenic Deep Sections, and Geophysical Studies
Tang, "Iron isotope variations in spinel peridotite xenoliths from North China Craton: Implications for mantle metasomatism," Contributions to Mineralogy and Petrology, vol.
These range from mafic xenoliths (probably derived from the foundation), to greyish granitic/aplitic autoliths themselves containing dark enclaves in rare instances.
(1999): Nature and composition of the lower continental crust in central Spain and the granulite-granite linkage: inferences from granulitic xenoliths. Journal of Petrology 40, 1465-1496.
3-D X-ray tomography of diamondiferous mantle eclogite xenoliths, Siberia: A review.