parent rock /SCIENCE/
[DE] Muttergestein
[EN] parent rock
[FR] roche mère; roche-mère
mother rock,parent rock,source bed,source beds,source rock /SCIENCE,ENERGY-MINING,ENERGY-OIL/
[DE] Ausgangsgestein; Muttergestein; Ursprungsgestein
[EN] mother rock; parent rock; source bed; source beds; source rock
[FR] roche mère