You visit a young volcanic area and find volcanoes erupting magmas that range in composition from basalt to dacite. There are two hypotheses for how this range of magmas arose: 1. Crystal fractionation from a parent basaltic magma. 2. Mixing of basaltic magma with rhyolite magma derived by partial melting of Precambrian granite. Devise a geochemical test, using isotopic data, for evaluating these hypotheses. What does each predict about isotopic variability in the suite?
This is a sample question
Need help with a similar assignment?
Place an order at Study Pirate
Attach all custom instructions.
Make Payment. (The total price is based on number of pages, academic level and deadline)
We’ll assign the paper to one of writers and send it back once complete.