<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.6000.16825" name=GENERATOR> <STYLE>  </STYLE> </HEAD> <BODY lang=EN-US vLink=blue link=blue> <DIV dir=ltr align=left>Since GOSA seemingly can't do so, I think the best solution is to request NPS via Hank to issue a statement correcting these erroneous reports.  That is, of course, if they care to do so.</DIV> <DIV dir=ltr align=left> </DIV> <DIV dir=ltr align=left>Let me get this straight, NPS Geologist, YVO Director and USGS folks saw this and some took photos.  Whomever among these people issued the "hydrothermal explosion" statement would have their bubble burst (pun intended) by a retraction.</DIV> Thanks, Udo Freund The difficult we do immediately, the impossible takes us a little longer, but performing magic is best left to professional magicians. <HR tabIndex=-1> From: geysers-bounces@lists.wallawalla.edu [mailto:geysers-bounces@lists.wallawalla.edu] On Behalf Of Mike Keller Sent: Wednesday, May 27, 2009 6:31 PM To: 'Geyser Observation Reports' Subject: RE: [Geysers] Photograph of Black Diamond eruption (Stephens) <DIV></DIV> <DIV class=Section1> The photos are quite nice, but hydrothermal explosion?  I think not-the photo looks like the eruptions of Black Diamond I saw in 2007 and 2008-muddy, filled with sinter, rocks, and lots of silt.  My impression each time I have seen it is that there isn’t much of a plumbing system/geyser vent that the eruption is coming from.  Does that constitute a hydrothermal explosion versus an eruption?  I would say this is an eruption, especially since the area has a history of doing it in the past 3 years, plus other events in the early 1910’s, 1920’s, 1930’s, 1940’s, and 1950’s.  I would even dare to speculate that the source of energy that drove Black Diamond/Wall Pool in these years moved to Sapphire Pool after the 1959 earthquake and is just now returning back to the Black Diamond area.   Maybe I am wrong, but my impression/definition of a hydrothermal explosion is an area that has a large explosion or one time event, not a history of eruptive activity.   MK   -----Original Message----- 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)   <DIV> <DIV> Hydrothermal or not, that is the quesiton!</DIV> <DIV>  </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?</DIV> <DIV> Was this NOT a true hydrothermal explosion but just a "messy" geyser eruption? </DIV> <DIV>  </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??</DIV> <DIV>  </DIV> <DIV> Jack  </DIV> <DIV>   <DIV> <DIV class=MsoNormal style="MARGIN-LEFT: 0.5in; TEXT-ALIGN: center" align=center> <HR align=center width="100%" SIZE=1> </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) <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 Biscuit Basin......... Well ?</DIV> <DIV>  </DIV> <DIV> Scott Bryan</DIV> <DIV>  </DIV> <DIV> In a message dated 5/24/2009 12:56:37 AM Mountain Daylight Time, david.schwarz@gmail.com writes:</DIV> <BLOCKQUOTE style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; MARGIN-TOP: 5pt; PADDING-LEFT: 4pt; MARGIN-BOTTOM: 5pt; PADDING-BOTTOM: 0in; MARGIN-LEFT: 3.75pt; BORDER-LEFT: blue 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none"> There's another photo of the explosion in the Jackson Hole News, along with a write-up: <A title=http://www.jacksonholenews.com/article.php?art_id=4624 href="http://www.jacksonholenews.com/article.php?art_id=4624" target=_blank rel=nofollow>http://www.jacksonholenews.com/article.php?art_id=4624</A></BLOCKQUOTE></DIV> <DIV id=dc0da6ba2bff5ff1d0d4b897132eac26>   <DIV class=MsoNormal style="MARGIN-BOTTOM: 0pt; MARGIN-LEFT: 0.5in; MARGIN-RIGHT: 0in; TEXT-ALIGN: center" align=center> <HR align=center width="100%" SIZE=2> </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 rel=nofollow>See Yours in Just 2 Easy Steps!</A></DIV></DIV></DIV></DIV>  </DIV> Internal Virus Database is out of date. 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