Springfield
Silver Member
Hal, would you by chance be comfortable posting or forwarding a copy of the spreadsheet with results? I would love to see that.
I'm a chemist, not a geologist, so I can only really approach this stuff from one perspective. There are a few things that confuse me a little bit:
1) The term anomalous is used in many places in the e-mail - I generally use the term to mean something like "unexpected." I can't tell if the e-mail author is using it the to mean the same thing in all cases......
I will say two things though regarding the data:
1) As a general rule, when it comes to any sort of analysis of materials, the first and foremost step is ALWAYS sampling - if you don't get good, representative samples, no matter how good your analysis and interpretation is, you have the chance of drawing incorrect conclusions. ...
The data needs to be analyzed - the email by itself is inconclusive.
An anomalous return on the samples means there was a higher concentration of metals at certain locations in the drainages sampled, based on the methodology chosen. We would need to see a complete listing of sample locations to determine how thoroughly the target area was sampled. We would also need to see the ppm results on the tests. An anomalous return can be interpreted in many ways because both the sample locations and the upstream conditions can vary wildly. More samples mean more reliable results. A few grab samples don't tell us much.
As you said, the sampling technique itself is critical. Limiting the sample points to 'natural heavy mineral traps' will by definition produce higher mineral values, and IMO is a risky peg to hang one's hat on regarding upstream conditions because not all 'natural heavy mineral traps' are created equal.
The email and maps are interesting, but I'd be reluctant to draw conclusions from them.