Ground Research advice please!

Hi Everyone

Do you have any suggestions on research books in relation to what I need to look for relating to the ground type I am in when detecting?
I really have no idea where to start. The place I will be detecting at is basically a few hours west to nth west of Bourke and its red red red dirt and more red dirt with the occasional dried up rocky creeks. It may be that the ground is just not viable for any precious metal but its somewhere I go every year and thought it would be fun and interesting to give it a good go. I'm just not sure exactly what I should be looking out for as a good place to start. Thanks so much