Researchers have discovered microdiamonds in the Nishisonogi metamorphic rock formation in Nagasaki Prefecture, Japan. Microdiamonds in metamorphic rocks are important minerals because they form in ...

a: Geological zone in western Japan. The blue-green part is the Sanbagawa belt that crosses mainland Japan. The Nishisonogi metamorphic rock was thought to belong to the same geological formation as ...

Chinese offshore operator CNOOC Ltd has kicked off drilling at what it claimed to be the world largest oilfield in metamorphic rock at deep reservoir levels in Bohai Bay offshore northern China. This ...