The coarse intrusive equivalent of rhyolite is a. granite b. You are a metamorphic petrologist. You are studying a rock that contains a lot of sillimanite. Low pressure but very high temperature 24. A rock type commonly found in lavas.
Peridotites are a. ultramafic rocks b. rich in olivine c.
You sent it away for dating and the results indicate that the gneiss is 90,000 years old. You are an igneous petrologist driving through western Oklahoma. You notice some basalt rocks near the side of the road. A tilted erosional surface has foliated gneiss and schist on one side and a Cambrian conglomerate with pieces of the gneiss on the other side. You find a granite on the surface in Kansas.