mafic rock (containing magnesium and iron, so comparatively heavy, making oceanic plates)
trad. 鐵鎂質
Also written 鐵鎂質【tiě měi zhì】
mafic rock (containing magnesium and iron, so comparatively heavy, making oceanic plates)
trad. 鐵鎂質
Also written 鐵鎂質【tiě měi zhì】