sill
1
9.6
- noun
- /sɪl/
- Specialized
:
manto ígneo
- However, within the fine-grained sediments, there were sills and dikes of friable sandstone less stable and more permeable than the surrounding rock mass.
Examples
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A cluster of pyroxene phenocrysts in a basic sill, Isle of Mull, Scotland.
Academic text (2018) -
Coins clinked against the concrete sill: two American nickels and a single ten-cent piece.
Fiction book (1994) -
This is a granite sill with marsh on this side.
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Little lines of dust lay at the door sills.
Fiction book (1991) -
Harley stood on the threshold of their room and knocked on the door sill.
Fiction book (1994) -
I noticed he had plants in his windows and photographs of his wife and daughters on the sills.
Fiction book (1994) -
Norton scoops a handful of rocks off the sill.
Fiction book (1994) -
The geologist explained that the sill was formed as molten rock intruded between older sedimentary layers.
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During our field trip, we observed a prominent sill made of granite that lay parallel to the surrounding rock layers.
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In studying geological formations, we identified several sills that provided insight into the area's volcanic activity.
Compounds
How Big
Surface Forms
Etymology
Sill in geology was named after the common house sill, which means a low flat 'ledge' under a window or door, because the rock layer sits like a long shelf between other layers.