<html><head><style type="text/css"></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:12pt"><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<BR> </DIV> <DIV style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12pt"><BR> <DIV style="FONT-FAMILY: times new roman, new york, times, serif; FONT-SIZE: 12pt"><FONT size=2 face=Tahoma> <HR SIZE=1> <B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> "TSBryan@aol.com" <TSBryan@aol.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> geysers@lists.wallawalla.edu<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Sunday, May 24, 2009 4:35:27 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Geysers] Photograph of Black Diamond eruption (Stephens)<BR></FONT><BR> <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-LEFT: blue 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR><FONT face=Arial>There's another photo of the explosion in the Jackson Hole News, along with a write-up:<BR><BR></FONT><A title=http://www.jacksonholenews.com/article.php?art_id=4624 href="http://www.jacksonholenews.com/article.php?art_id=4624" rel=nofollow target=_blank><FONT face=Arial>http://www.jacksonholenews.com/article.php?art_id=4624</FONT></A></BLOCKQUOTE></DIV> <DIV></DIV> <DIV id=dc0da6ba2bff5ff1d0d4b897132eac26 class=aol_ad_footer><BR><FONT style="FONT: 10pt arial,; COLOR: black"> <HR style="MARGIN-TOP: 10px"> <B>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" rel=nofollow target=_blank>See Yours in Just 2 Easy Steps!</A></B></FONT></DIV></DIV></DIV></div><br> </body></html>