== Shale is a sedimentary rock, comprised of lithified mud and clay minerals.
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Shamrock ;) Just kidding, obviously. I would say Shale.
Shale can metamorphose into slate, which can metamorphose into phyllite, which can metamorphose into schist, which can metamorphose into gneiss.
Shale is a type of rock. A piece of shale is normally flat and thin like a small chalkboard.
It can be. It is found in a rock type called shale and is produced in the shale form the original bio mater included in the deposition of the shale. If a unit of shale lithology is to be found on the continental shelf strata then it is likely that that shale will contain shale gas and it will be under the sea.
Shale oil is an oil distilled from shales and used as fuel
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Shale & Limestone !
Shale is not an element. Shale is a type of sedimentary rock composed of clay-sized particles that have been compacted over time. It is made up of various minerals such as quartz, feldspar, and clay minerals.
A Sub Glacial Volcano
Mauna Loa type of volcano