🚀 go-pugleaf

On Jun 28, 3:59 am, kangarooistan <kangarooist...@gmail.com> wrote:
> Question from a novice , about Uranium Thorium dating of stalactites /
> speleotherms .
>   Having spent some time online google searching ,  I m still not sure
> if it is possible to date relatively recent '' calcite deposits ''
> using modern uranium thorium method , it clearly being done on samples
> much older , within the archaeology field it has been used to date
> rock art  30,000 plus years old  .
>  http://en.wikipedia.org/wiki/Speleothem#Absolute_dating ,
> .
> this '' old iron tool ''  was found in an old mine site ,    I NOTE
> there is a  modestly  thick and visible layer of  ''calcite  sand
> grains''  on it ,  that fell from the roof and or sides of the old
> mine ,  before the mine collapsed and buried the '' old iron tool ''
> on the  site with the entire mass  then set into a conglomerate  of
> mixed minerals  as shown here .https://picasaweb.google.com/107516779059962399739/AncientMiningResea...
> .
> my questions are assuming iron tools must be aged from  between about
> 5000 years old and  may be  relatively  very recent , can existing
> tests date  the  '' cave popcorn ''  accurately  , withing this
> rather young age  range , certainly  a lot less than 5000 years ?
> 1.  would it be possible to date this  '' cave popcorn '' calcite
> sand
>  2. and where in australia can I have this done ?,
>  3. and how much would it cost  ?
>  .
> Cave popcorn, or coralloids, are small nodes of calcite, aragonite or
> gypsum that form on surfaces in caves, especially limestone caves.[1]
> [2] They are a common type of speleothem.[1][2]http://en.wikipedia.org/wiki/Cave_popcorn

https://picasaweb.google.com/107516779059962399739/AncientMiningResearchSouthAustralia#5457486605114653986
note the two square quartz cubes in the center of picture , the clear
quartz cube has a hole drilled through the center , clearly a bead ,
and a short gold wire of similar diameter , is exposed and visible ,
embedded within the above conglomerate , but not on this side , and
not easily seen online