S1I1M3A1
6 points
SIMA is validvalid
an igneous rock [n SIMAS]
the oceanic crust; also the lower layer of the continental crust, so called because it is enriched in silica and magnesium oxide [n -S]
an igneous rock [n SIMAS]
the oceanic crust; also the lower layer of the continental crust, so called because it is enriched in silica and magnesium oxide [n -S]