Complex sentence: The lavas from Wolf are similar to those erupted from the Galapagos Spreading Center, a mid-ocean ridge over 200 km away, which may be due to interaction between the plume, which is centred on Fernandina, and the upper mantle.
Split into simpler sentences: The lavas from Wolf are similar to those erupted from the Galapagos Spreading Center, a mid-ocean ridge over 200 km away. This is believed to be due to interaction between the plume, which is centred on Fernandina, and the upper mantle.