<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PlaceType"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PlaceName"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/>  <style>  </style> </head> <body lang=EN-US link=blue vlink=blue> <div class=Section1> We need to be clear.  This was an eruption from the pool containing Black Diamond Geyser.  I saw an eruption of it in 2007 that was a bit smaller than this eruption.  Other gazers had seen larger eruptions (and photographed it from across the highway), and the evidence of even larger eruptions was present on the boardwalk and nearby trees – splashes of muddy water leaving bits of elongated mud a considerable distance from the pool.<o:p></o:p> <o:p> </o:p> The eruption I saw (along with several other gazers, including Mike Keller) looked like the photo.  It was amazingly black and filled with debris and glop, albeit shorter.<o:p></o:p> <o:p> </o:p> As Scott noted, the article was filled with inaccuracies (no geysers at <st1:place w:st="on"><st1:PlaceName w:st="on">Biscuit</st1:PlaceName> <st1:PlaceType w:st="on">Basin</st1:PlaceType></st1:place>?  And even if they meant “no geysers in this area of Biscuit Basin” it’s still wrong), but the most inaccurate part of it is the primary point:  that this was a rare hydrothermal explosion.  <o:p></o:p> <o:p> </o:p> No, it was an eruption of an infrequent geyser.  Now, was this particular eruption so large that it shattered the vent structure?  We have no idea, because the pool is so muddy and dark.  I suppose Black Diamond could have done a Porkchop on us, but the only way we will know is to see if there are additional eruptions in the next month/year.<o:p></o:p> <o:p> </o:p> I have no problem with Scott writing a little comment to the editors about this.<o:p></o:p> <o:p> </o:p> Paul Strasser<o:p></o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: geysers-bounces@lists.wallawalla.edu [mailto:geysers-bounces@lists.wallawalla.edu] On Behalf Of Jack Ashe Sent: Monday, May 25, 2009 8:14 AM To: Geyser Observation Reports Subject: Re: [Geysers] Photograph of Black Diamond eruption (Stephens)<o:p></o:p> </div> <o:p> </o:p> <div> <div> Hydrothermal or not, that is the quesiton!<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Isn't the assertion in the article that this was not a geyser eruption but rather a hydrothermal explosion resulting in geologic effect similar to the Pocket Basin explosion crater, Indian Pond or the Duck Lake events?<o:p></o:p> </div> <div> Was this NOT a true hydrothermal explosion but just a "messy" geyser eruption? <o:p></o:p> </div> <div>  <o:p></o:p> </div> <div>  If it is a hydrothermal explosion, I have been informed that these probably result  from a sudden drop in water pressure over the thermal source. Did that occur at Black Diamond??<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Jack  <o:p></o:p> </div> <div> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=1 width="100%" align=center> </div> From: "TSBryan@aol.com" <TSBryan@aol.com> To: geysers@lists.wallawalla.edu Sent: Sunday, May 24, 2009 4:35:27 PM Subject: Re: [Geysers] Photograph of Black Diamond eruption (Stephens)<o:p></o:p> <div> <div> Need I point out the errors in this article. I hope the source wasn't in-park... but as we all know, Black Diamond has had quite a few eruptions... and above all, the statement that there are no geysers at <st1:place w:st="on"><st1:PlaceName w:st="on">Biscuit</st1:PlaceName> <st1:PlaceType w:st="on">Basin</st1:PlaceType></st1:place>......... Well ?<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Scott Bryan<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> In a message dated 5/24/2009 12:56:37 AM Mountain Daylight Time, david.schwarz@gmail.com writes:<o:p></o:p> </div> <blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'> There's another photo of the explosion in the Jackson Hole News, along with a write-up: <a href="http://www.jacksonholenews.com/article.php?art_id=4624" target="_blank" title="http://www.jacksonholenews.com/article.php?art_id=4624">http://www.jacksonholenews.com/article.php?art_id=4624</a><o:p></o:p> </blockquote> </div> <div id=dc0da6ba2bff5ff1d0d4b897132eac26> <o:p> </o:p> <div class=MsoNormal align=center style='margin-top:7.5pt;text-align:center'> <hr size=2 width="100%" align=center> </div> An Excellent Credit Score is 750. <a href="http://pr.atwola.com/promoclk/100126575x1221322948x1201367184/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072%26hmpgID=62%26bcd=MayExcfooterNO62" target="_blank">See Yours in Just 2 Easy Steps!</a><o:p></o:p> </div> </div> </div> </div> <o:p> </o:p> </div> </body> </html>