Complex sentence: The crater of the volcano which formed the Petrified Forest of Lesvos is located in the area, therefore the soil is very acidic and contains a lot of minerals, including sulphur and copper sulphate.
Split into simpler sentences: The crater of the volcano which formed the Petrified Forest of Lesvos is located in the area. The soil is therefore very acidic and contains a lot of minerals, including sulphur and copper sulphate.