Called Lewisian gneiss, it’s the oldest rock in the UK. It’s found in the northwest extremity of the Scottish mainland and the Western Isles. The gneiss’s new home is in our gardens, where it forms ...

But the Seychelles are not volcanic at heart; they are granitic, and granite is so un-oceanic a rock that its presence virtually defines the existence of a continent. Granite islands in the middle ...

For the past nine years, an army of tunnelers has toiled deep in the hard granitic core of the mighty ... of granite and gneiss separated the miners tunneling south from the ski village of Sedrun ...

FROM time to time there appears in various contexts reference to the predominant mass of granitic rock which, it is claimed or supposed, forms the vast bulk of the Great Himalayan Range ...

Geologic map of the Meguma Group and its intruding granitic plutons Schenk (1970 and unpublished ... quartz-rich granodioritic terrain consisting of gneiss, granite, and metasediments, of presumed ...