Definition of "pelitic" []

• In geology, composed of fine sediment or mud.

The Century Dictionary (Public Domain)

• "High-grade uranium mineralization encountered in these drill holes occurs primarily in basement rocks that are a heterogeneous mix of variably clay-altered to clay-replaced pelitic gneiss, graphitic pelitic gneiss, granitic pegmatite and microgranite."
• "The electromagnetic conductor was explained by graphitic pelitic basement rocks in 6 of the 13 drill holes."
• "RL08-06 intersected a radioactive fracture approximately 39 metres below the unconformity within a pelitic unit which returned 102 ppm U over 0.3 m from 150.0 and 150.3 m."