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Related articles:
Stratum
Slate
Rock (geology)
Metamorphic rock
Schist
Quartz
Sedimentary rock
Oil shale
Shale gas
Key terms: shale rock water iron silt quartz color slate contain carbon particles deposited amounts bedding percent geology clay minerals variable parallel than one less than black shales typically especially sedimentary rock Search external links cited by footnotes on Wikipedia page Shale: |
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