oceanic-island basalt

The Early Jurassic alkali basalts from the Riajunlama region probably represent the oceanic island basalt within the plate of the Bangong-Nujiang ocean.
早侏羅世堿性玄武巖代表了班公湖-怒江洋內(nèi)的板內(nèi)洋島玄武巖。