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出典:Wiktionary
出典:『Wiktionary』 (2025/08/15 20:14 UTC 版)
From Ancient Greek λάκκος (lákkos, “cistern”) + -lith.
laccolith (plural laccoliths)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/28 08:34 UTC 版)
A laccolith is a sheet intrusion (or concordant pluton) that has been injected between two layers of sedimentary rock. The pressure of the magma is high enough that the overlying strata are forced upward, giving the laccolith a dome or mushroom-like form with a generally planar base.
Laccolith