The total abundance of cobalt on Planet Earth is estimated at 20-30ppm, including all the concentrated deposits, so background cobalt would be less than that (I've seen 8ppm stated). An anomaly of 209ppm is therefore potentially more than 10-20x greater than the average background level. That indicates the presence of cobalt concentration somewhere nearby, which is the purpose of grid sampling.
MEI Fundamentals, page-55
-
- There are more pages in this discussion • 26 more messages in this thread...
You’re viewing a single post only. To view the entire thread just sign in or Join Now (FREE)
