"oelschiefer" in English Ölschiefer {m} oilshale oil shale petroliferous shale bituminous shale pyroschist Detailed translations for "oelschiefer" der Ölschiefer{masculine} 1. geology Ölschiefer oilshale 2. other Ölschiefer oilshale Ölschiefer oil shale Ölschiefer petroliferous shale Ölschiefer bituminous shale Ölschiefer pyroschist