laccolith
noun
lac·co·lith
ˈla-kə-ˌlith 
: a mass of igneous rock that is intruded between sedimentary beds and produces a domical bulging of the overlying strata
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This is the language of Big Sky Country: laccolith, dike, shonkinite, marine shale.
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Porter Fox, Outside Online, 1 June 2018
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Porter Fox, Outside Online, 1 June 2018
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“Laccolith.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/laccolith. Accessed 22 Dec. 2024.
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