- Jun 26, 2008
- 7,735
- 10,996
- Detector(s) used
- Ace 250 (2), Ace 300, Gold Bug 2, Tesoro Cortes, Garrett Sea Hunter, Whites TDI SL SE, Fisher Impulse 8, Minelab Monster 1000, Minelab CTX3030, Falcon MD20, Garrett Pro-pointer, Calvin Bunker digger.
- Primary Interest:
- Metal Detecting
Geological maps of an area have different colors representing different rocks. They also have a short "code" on the rock form. This is a standard system, I'm sure. Can anyone tell me or direct me to where I can get the list of what code denotes what rock? Not easy to find. Tnx. ╦╦Ç