OT. RE: great company - longnotshort Only
longnotshort -
well Long and not short -
sounds good to me -
will give You one -
but don't tell the znobody -
- the Old Franklin Gold Mines -
to look into - FMNJ -
well, we were above $50 -
but down to below a penny -
has averaged out here with
some of the firesales -
still we going to start to help -
the old Silver Miners i Bolivia -
to mine one of the worlds rich -
silver mines - CERRO RICO -
its a shame - but the old
Christian Miners have
fatal accidents most every day ? -
and the Gov. may let us in to fix
the problems ? -
and if u feel GG is to expensive for
your wallet ? -
you may have some pocket-change,
to fit fmnj ?..
METALLOGENESIS OF THE WORLD’S LARGEST SILVER DEPOSIT:
CERRO RICO, BOLIVIA
Bolivian polymetallic vein (BPV) deposits are large,
intrusive-related, sulfide-dominated polymetallic vein systems.
Typically they span the mesothermal to epithermal environment.
They are significant producers of silver, tin, zinc and gold.
Cerro Rico
is a classic example, and is the world's largest silver deposit.
Since its (re)discovery in 1544 by the conquistadores it has
produced at least 1 billion ounces of silver.
The town of Potosi which sits beneath the mountain had a population
of approaching 200,000 in the 17th century during it’s heyday -
bigger than London or Paris -
when it was the financial engine of the Spanish Empire.
A cost of this enormous wealth was the terrible toll of slaves:
an estimated one million (possibly more) lost their lives.
Today it is mined by local miners’ cooperatives, largely for tin.
Approved project IP/427/0994 with Dr. Clive Rice of Aberdeen
University has investigated the metallogenesis of this truly giant
ore deposit.
There are many BPV deposits, but one question was at the centre
of this study - WHAT MADE CERRO RICO SO BIG?
Cerro Rico dominates the town of Potosi, and its Ag production
has never been matched.
When one compares Cerro Rico to other BPV deposits,
three features stand out as being exceptional:
* The phenomenal silver resource.
Cerro Rico has produced almost five times more silver
than any other BPV deposit.
* Development of a thick acid-sulfate lithocap.
The acid-sulfate lithocap at Cerro Rico is at least twice
as thick as any other described from a BPV deposit.
* Development and preservation of a particularly deep zone
of oxidation.
This is almost four times as thick as any other developed
at a BPV deposit.
The extraordinary richness of the Cerro Rico silver deposit
is not due to weathering processes as is the case with many
of the Tertiary porphyry Cu deposits of northern Chile.
Instead the enrichment of Ag must be related to volcanic-related
processes.
Recent studies of melt inclusions have shown that the magmas
at Cerro Rico were highly fractionated and enriched in incompatible
elements such as Ag and Sn.
However, fractionation alone is unlikely to account for the
unusual abundance of silver at Cerro Rico.
Critically, the combination of accurate dating and the use
of stable isotopes –
both based upon excellent field and petrographic observations –
allowed us to observe that the mineralizing episode was protracted,
by comparison to other deposits related to processes in the upper
parts of volcanoes.
Our studies suggest that it was this exceptional duration of
magma-related hydrothermal activity that was perhaps the critical
factor.
It is probable that this was sustained by multiple injections of
fractionated Ag-enriched magma from a deep reservoir
into a high level magma chamber underlying Cerro Rico.
This work has now been accepted for publication in Economic Geology,
and has also been the subject of an article in the last issue of
NERC’s public bulletin, Planet Earth.
Btw.
i want to fix the problems today ! -
if the 666 gets out ot the way and let me in ? -
and You can help me and yourself ? -
or it may only be one more card ? -
to have up the sleeve -
only to be saved for a rainy day ?
as V.EGX, T.CCH etc. were the 666 -
blocking the 888 roads ! .