Emphasis will be on Earth materials (rocks and minerals), processes (weathering, erosion, mountain building), structures (folds and faults), and current theories regarding 
(Emphasis; will be; on Earth materials; processes (weathering, erosion, mountain building) (structures (folds and faults), and current theories; regarding; )
Emphasis structures (folds and faults), and current theories
will be regarding
on Earth materials processes (weathering, erosion, mountain building