bn:00071610n
Noun Concept
Categories: Volcanology, Subvolcanic rocks, Intrusions, Sills (geology)
EN
sill  Geologic sill  Geological sill  igneous sill  submarine sill
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(geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock WordNet 3.0
English:
geology
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EN
In geology, a sill is a tabular sheet intrusion that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff, or along the direction of foliation in metamorphic rock. Wikipedia
A subhorizontal sheet intrusion of molten or solidified magma Wikipedia Disambiguation
Geology term for a type of rock formation Wikidata
A horizontal layer of igneous rock between older rock beds. Wiktionary
Layer of igneous rock. Wiktionary (translation)
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WordNet 3.0 & Open English WordNet
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