Grounding Solutions in Rocky Terrain

Hi,

I have no experience in this field but my thinking dictates the following:

garnite and ice are good insulators, so you need a good contact to the graundwater.

If no groundwater is available as the granite may be very extended you have to drill deep down until you hit a water filled fault.

Reinforced concrete is very good as the concrete makes a good connection to the surrounding material and the steel reinforcements carry most of the current.

Also if built to valid specifications any grounding can fail if hit by one of the very rare lightnings coming from the upper (positive) clouds of a thunderstorm. This can carry more than 100KA and can easily melt down an antenna mast 100mm diameter and 6mm wall thickness.

RHABE

Well here in México theres a lot of rocky terrain the solution is refill the grounding site with electrolites. I wonder how much would be affected for the temperature conditions but thats all i know.