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xenolith
[ zen-l-ith ]
noun
Petrography.
- a rock fragment foreign to the igneous rock in which it is embedded.
xenolith
/ ˈzɛnəlɪθ /
noun
- a fragment of rock differing in origin, composition, structure, etc, from the igneous rock enclosing it
xenolith
/ zĕn′ə-lĭth′,zē′nə- /
- A rock fragment foreign to the igneous mass in which it occurs. Xenoliths usually become incorporated into a cooling magma body when pieces of the rock into which the magma was injected break off and fall into it.
- Compare xenocryst
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Derived Forms
- ˌxenoˈlithic, adjective
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Other Words From
- xeno·lithic adjective
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Example Sentences
“Oh, look at this, this is really cool,” Penn says, picking up another rock with another white spot - a xenolith, he says, another fragment from the Earth’s crust.
From Washington Times
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