Museum scientists are using petrology and geochemistry to investigate the magma production processes taking place under Earth's surface in Calatrava, Spain.
The volcanic rocks in Calatrava are well exposed as vegetation in the area is sparse. They contain spectacular examples of mantle xenoliths along with some good examples of magmatic carbonate.
We are studying mantle xenoliths from depths of up to 50 kilometres to identify and geochemically characterise mantle materials erupted in volcanic carbonatite provinces.
We can use variations between xenoliths to track the changing composition of melts as they react with the mantle.