EstablishedMetamorphism of shale.
When a shale rock is subjected to metamorphism it may change into slate.
Evidence support: Supported by the cited evidence one source
Evidence: British Geological Survey n.d. Primary authority
Rock
A fine-grained metamorphic rock produced from shale, splitting along planes created by the alignment of platy minerals under directed pressure.
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When a shale rock is subjected to metamorphism it may change into slate.
Evidence support: Supported by the cited evidence one source
Evidence: British Geological Survey n.d. Primary authority
Record last updated 2026-09-06. Corrections follow the published corrections policy; superseded claims are retained, never silently edited.