[Geysers] Fountain/Morning (Stephens)

[Lynn Stephens]

THIS MESSAGE IS FOR THE PERSONAL USE OF THE READERS OF THIS LISTSERV AND MAY NOT BE REPRODUCED FOR ANY OTHER PURPOSE, INCLUDING PUBLICATION IN THE SPUT.  (Tom & Genean, I'll incorporate it in an article on Lower Geyser Basin activity for the August Sput.)


I recently received a request for information about the 1991 dual eruptions of Fountain and Morning.  Since many of the subscribers to this listserv weren't interested in geysers back then, I decided to post information about those eruptions here, with a cautionary note:  Remember that past performance is no guarantee of future performance.

Date                 Fountain's Duration         Morning's Duration     Lag between start of Fountain and start of Morning

7/4/91                        95 minutes                    31 minutes       Morning started "soon" after Fountain started

     There was a Fountain solo between the dual on 7/4/91 and the dual on 7/5/91.

7/5/91                         82 minutes                   21 minutes        2 minutes
      After the dual eruption on 7/5/91, the energy shifted back to Fountain until

8/9/91                         122 minutes                 38-1/2 minutes   1 minute

      At this point the energy shifted back to Morning.  Morning erupted at an average interval of about 3h45m until

8/28/91                        140 minutes                36 minutes         Less than one minute

      Neither Fountain nor Morning had a solo eruption between the 8/28 and 8/29 dual eruptions 

8/29/91                          98 minutes                27m25s             1m15s   

      Following this dual eruption, the energy shifted back to Fountain.  
      
       Intense study of the Fountain Complex for much of the summer resulted in several Transactions articles--one describing Morning's activity in May, July, and August that year,  and a series describing how Jet, Bearclaw, Twig, Fountain, Spasm, Clepsydra, and Spasm's activity changed depending on whether the complex was on "Fountain Function" or "Morning Function."

Lynn Stephens



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