Geochemistry of Ascension volcanic rocks
Silica versus total alkalis classification plot of LeBas et al. (1986). B = basalt, H = hawaiite, M = mugearite, Be = benmoreite, T = trachyte, R = rhyolite.
Ascension geology pagePage maintained by Barry Weaver
Silica versus total alkalis classification plot of LeBas et al. (1986). B = basalt, H = hawaiite, M = mugearite, Be = benmoreite, T = trachyte, R = rhyolite.
Page maintained by Barry Weaver