Re: Volcanoes and Gold, the Metal

From: hanson (hanson_at_quick.net)
Date: 08/25/04 

Date: Wed, 25 Aug 2004 22:00:39 GMT

"Andrew Tweddle" <sarason@alphalink.com.au> wrote in message
news:412cde2c@news.alphalink.com.au...
> > hanson wrote:
> >>Gold in its metallic form is found many times associated with
> >>quartz. What is the chemistry, physics and the transportation
> >>mechanisms for the gold that do occur here?
> >>Is there a water soluble gold silicate, a gold sulfide, or gold
> >>arsenide that dissolves, transports and precipitates gold under
> >>high temp and high pressures?
> >>Or, is this a purely (geo) physical process with gold being
> >>always in its metallic form changing only its grain size from
> >>being colloidal to lumps and back?
> >>I am not interested in the mining processes of the gold but
> >>in the NATURAL geo-phys/chem processes that happen.
> >>hanson
> >
> >
> > Gold+quartz is deposited by hydrothermal transport of chloride or
> > sulfide gold complex ions. It's in the literature.
> > Uncle Al
>
> IIRC The history of discovery has only bought the Chloride root to
> general knowledge since the early 1980's. Previously the gold quartz
> root was the only process thought to occur in the ground. I also found a
> reference to tellurium in telluride ore at Kalgoolie, however no
> reference to which mine and discovery date. I believe there is a ski
> resort in the U.S. called telluride, was it silver or gold that was
> discovered there?
> This site has a little explanation on geological process, but is not
> exhaustive.
> http://earthsci.org/mindep/depfile/auplace.htm
> Andrew
>
Thanks guys, especially Andy. Take care and have fun!
hanson

Relevant Pages

  • Re: Volcanoes and Gold, the Metal
    ... "Andrew Tweddle" wrote in message ... >> sulfide gold complex ions. ... > reference to which mine and discovery date. ... > resort in the U.S. called telluride, was it silver or gold that was ...
    (sci.physics)
  • Re: Volcanoes and Gold, the Metal
    ... "Andrew Tweddle" wrote in message ... >> sulfide gold complex ions. ... > reference to which mine and discovery date. ... > resort in the U.S. called telluride, was it silver or gold that was ...
    (sci.geo.geology)
  • Re: Volcanoes and Gold, the Metal
    ... >> sulfide gold complex ions. ... >> Uncle Al ... > reference to which mine and discovery date. ... > resort in the U.S. called telluride, was it silver or gold that was ...
    (sci.chem)
  • Re: Volcanoes and Gold, the Metal
    ... >> sulfide gold complex ions. ... >> Uncle Al ... > reference to which mine and discovery date. ... > resort in the U.S. called telluride, was it silver or gold that was ...
    (sci.geo.geology)
  • Re: Volcanoes and Gold, the Metal
    ... >> sulfide gold complex ions. ... >> Uncle Al ... > reference to which mine and discovery date. ... > resort in the U.S. called telluride, was it silver or gold that was ...
    (sci.physics)
Quantcast