USGS studies have indicated that the deep geothermal fluid is hundreds of years old -- one paper cited a possible 1,100 years. The paper in question here (and I have not been able to get the article itself) is, I think really discussing the influence of near-surface (meteoric) water admixing with the geothermal. To some extent I think this is sort of a "Duh" sort of thing... but like I say, I haven't seen the article. Scott Bryan ----- Original Message ----- From: Lucille Reilly<mailto:thedulcimerlady at juno.com> To: 'Geyser Observation Reports'<mailto:geysers at lists.wallawalla.edu> Sent: Friday, May 30, 2008 9:04 PM Subject: RE: [Geysers] Fw: (USGS/NPS News Release) What Makes an OldGeyserFaithful? I find this very interesting because I remember the ranger saying on a geyser walk in 2000 that OF's water supply is about 500 years old. Not so? Now I wonder how that info came about. Lucille Reilly -----Original Message----- From: geysers-bounces at lists.wallawalla.edu<mailto:geysers-bounces at lists.wallawalla.edu> [mailto:geysers-bounces at lists.wallawalla.edu] On Behalf Of Lee_Whittlesey at nps.gov<mailto:Lee_Whittlesey at nps.gov> Sent: Friday, May 30, 2008 10:22 AM To: geysers at lists.wallawalla.edu<mailto:geysers at lists.wallawalla.edu> Subject: [Geysers] Fw: (USGS/NPS News Release) What Makes an Old GeyserFaithful? ----- Forwarded by Lee Whittlesey/YELL/NPS on 05/30/2008 10:21 AM ----- YELL Public Affairs To: Sent by: Al Nash cc: (bcc: Lee Whittlesey/YELL/NPS) Subject: (USGS/NPS News Release) What Makes an Old Geyser Faithful? 05/30/2008 09:26 AM MDT For Immediate Release - May 30, 2008 WHAT MAKES AN OLD GEYSER FAITHFUL? New research suggests that how often Old Faithful and other Yellowstone geysers erupt may depend on annual rainfall patterns. ____________________________________________________________ Need cash? Click to get an emergency loan, bad credit ok http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3mKmytKEUyc6X6NUcNzT1UNcxCo1eXFuQY025wmpUU63J3l4/<http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3mKmytKEUyc6X6NUcNzT1UNcxCo1eXFuQY025wmpUU63J3l4/> _______________________________________________ Geysers mailing list Geysers at lists.wallawalla.edu<mailto:Geysers at lists.wallawalla.edu> <> -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20080531/b3386692/attachment.html>