Falk,
This seems like a farfetched interpretation to me somehow. Why
do you conclude you have lichens? That would imply formation on
land. Why can't the gold result from local reduction rather than
being physically trapped?
cheers,
eric
On Jun 23, 2008, at 1:15 PM, Falk H. Koenemann wrote:
> Hi folks,
>
> in the 2.5 by old Witwatersrand gold deposits there are - usually on
> top of a gold-bearing conglomerate - small seams (1-10mm) of
> excellently preserved lichen which are metamorphosed to coal (highest
> prograde phase is chloritoid). The coal seams are called Thucholite
> because they are very rich in Th, U, C-H compounds, O, plus at their
> bottom there is often a visible layer of gold because these mats of
> organic matter worked much like moss layers in ore-bearing creeks
> doday, they catch the extremely fine gold detrital component in the
> water very well. No deformation. My samples are from a gold mine in
> the West Rand area, the name was Blyvooruitzycht (= Good Outlook),
> from a depth of ca.1600m below surface (which happens to be appx. sea
> level). I picked them up in 1978 while working in the mine. I am
> willing to give them into interested hands, that is: people interested
> in either the traces of life, or the gold deposits there; scientists,
> not collectors.
>
> Falk Koenemann
>
>
> --
>
> .___________________________________________________________________
> | Dr. Falk H. Koenemann Aachen, Germany |
> | |
> | Email: [log in to unmask] Phone: *49-241-75885 |
> |-------------------------------------------------------------------|
> | www.elastic-plastic.de |
> |===================================================================|
> | "Geschichten aus Lybien und Trügien, Indien und Erfindien, |
> | und aus der äußeren Mogelei ..." (Hans Konrad Zander) |
> |___________________________________________________________________|
>
>
|