[Geysers] Pebble Geyser

[David Monteith]

Here are couple images captured Saturday of the feature I think Lynn is
talking about.  On the two times I was looking for it, I saw it active
once and inactive once.  I think it was Steve E who said it had also
been heard making a forced steam sound when Pebble's water level was
low.

Dave


On Tue, 2013-06-04 at 20:17 -0600, Lynn Stephens wrote:
> THIS MESSAGE IS FOR THE PERSONAL USE OF THE READERS OF THIS LISTSERV
> AND IS NOT TO BE REPRODUCED FOR ANY OTHER PURPOSE, INCLUDING
> PUBLICATION IN THE SPUT.
>  
> Yesterday (6/3/2013) I noticed a feature I had never seen before on
> the west edge of Pebble Geyser, near the top of the area that gets
> inundated when Pebble fills to overflow.  When I first saw it, Pebble
> was rising and was several inches above the algae line on the inside
> of the "crater".  Water was burbling out from underneath a piece of
> what looks like an old sinter rim.  The burbling continued even after
> Pebble had filled to the point where Pebble's water had covered the
> sinter ledge be several inches and Pebble was in full overflow.  I did
> not monitor the feature closely as Pebble drained, but the three time
> I have checked Pebble when Pebble's water was 2 to 3 inches below the
> top of the orange algae mark on the inide of Pebble's crater, the
> feature was not burbling.  Height=2 to 3 inches when the feature is
> not underwater.  The bubbles rising from the west side of the crater
> when the feature is innundated are definitely water, not gas or air.
> The feature is intermittent but I have not observed it enough to
> determine either durations or intervals.
>  
> Lynn Stephens
> 
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