Economic Geology (1977) 72 (5): 796–803.
Abstract
Color differences in the thalli of Lecanora cascadensis Magn. correspond well with copper mineralization. This green-rimmed lichen was found associated with rocks possessing blebs of disseminated bornite or other evidence of copper mineralization. The intensity and the size of the lichen's green perimeter increase under the influence of copper mineralization; thus, 1,000 ppm and greater than 2,000 ppm anomalies can be distinguished. Apparently the lichen's anomalous green color is due to its ability to absorb and concentrate copper. Biogeochemical data support this hypothesis, as the ash of the anomalous green L. cascadensis assayed 4 percent copper. This concentration is approximately three times that of associated species collected at the same site. This evidence suggests that L. cascadensis could be a valuable geobotanical prospecting tool.
LINK -
https://pubs.geoscienceworld.org/segweb/economicgeology/article-abstract/72/5/796/18940/A-lichen-indicator-of-copper-mineralization-Lights
Which is why it's important to look at the foliage or lichen, sediment and water samples.
As per lichen...
Is a fungi and algae
It's a sort of plant leach that ( preys ) upon minerals.
I like to compare it to,
an above ground coral - similar to coral reef in oceans.
If it sponges - then, logic dictates that it will take on the persona of what ever it sponges.
Minerals oxidize - therefore... colorations in lichen would be superb pathfinders.
ELEKTR'S COBALT DEPOSIT ( note the white/pink quartz with grey mineral tones )
Elektra = cobalt.
And of course - Rover's similar geology - almost matches - .
Which begs the question ?
Couldit be cobalt or copper that is in grey metal form - hasn't yet oxidized ?
As i've outlined in former posts -
The midway point in between Rover and Fortunes Nico deposit.
Did have cooper and unranium and cobalt.
I'm treating this as a ( connective ) when speaking in terms of, potential same strike trend.
Potentially connecting similar geology of Rover's + Fortunes.
What the issue here is....
We have no documentation of - soil analysis in which Rover commssioned GeoScience.
Nor... assaying for other minerals 9 other than - gold.
And as i've already outlined - vidoe example
if copper or cobalt oxidized in sulphate form - and if chloride presence is evident in green blue cores - the copper / cobalt would be in a different state ( solution ) and then later solidified into rock with the blue / green colors...
There's a new study out - that can detect cobalt using - H2O2 ( peroxide )
There's also the use of " polarized light " that can detect cobalt.
XRF mineral detectors - for field use - have difficulty detecting cobalt.
The two greatest signs of detecting cobalt, other than in its grey mineral color state is...
Cobalt will turn blue / purple, and pink.
Hence - my emphasis on the photo above - rover's outcrop and...
- green + blue/purple drill cores.
My adivce ?
Reanalyze the cores and perhaps... send in some smaples of those ores like in pgoto above -
outcrops that are not so iron beating... Its these ores - i'm interested in along with a reanalysis of the irons - looking for copper and cobalt, bismuth, uranium, moly. Each of these minerals are found in vicinity.
- recheck the iron cores
- recheck the historical core - aber resources
- recheck the blue/purple cores
- bring forth samples from this diff geology outside the iron - photo above - have assayed.
Cheers....