inglese » arabo

inglese)

dolerite GEOL

dolerite

دولريت نوع من الصخور البركانية

inglese

The hills and pediments are very steep and the rock formation is of dolerite origin. en.wikipedia.org

The quartz-dolerite, being much harder than the surrounding coal measures, has been exposed due to erosion, including by glaciation. en.wikipedia.org

Although they appear to be of abiogenic origin, only that near the dolerite sills points to a probable mantle origin. en.wikipedia.org

inglese