quartzose shale

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quartzose shale [′kwȯrt‚sōs ′shāl]

(petrology)

A green or gray shale composed predominantly of rounded quartz grains of silt size, commonly associated with highly mature sandstones (orthoquartzites), representing the reworking of residual clays as transgressive seas encroached on old land areas.

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quartzite
quartzitic sandstone
quartzose
quartzose arkose
quartzose chert
quartzose graywacke
quartzose sandstone
quartzose shale
quartzose subgraywacke
quasar
quasi-acoustical holography
quasi-atom
quasi-cratonic
quasi-crystal
quasi-equilibrium

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