大洋中脊玄武岩

  • 网络MORB;mid ocean ridge basalt
大洋中脊玄武岩大洋中脊玄武岩
  1. 大洋中脊玄武岩的3He/4He值为8~10Ra;

    For 3He / 4He ratio , the mid-oceanic basalts range 8 ~ 10Ra ;