<html><head><style type="text/css"></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Splendid turns cone-type.  Overall vent size is not as big as Giant's, but is perhaps 2nd.</DIV> <DIV> </DIV> <DIV>How about the combined cross-sectional area of Mastiff?  Goes cone when big.</DIV> <DIV> </DIV> <DIV>When combining areas, how about all of Fan's vents combined?</DIV> <DIV> </DIV> <DIV>People go back and forth as to whether Steamboat is cone/fountain.  The cone/fountain distinction is a useful descriptor, but artificial, and there is surely overlap.  Introducing that blur, Giantess certainly acts cone-type sometimes.  It's vent isn't Giant size, but is also big.  Geysir goes cone for a portion of it's eruptions.  It's vent is about 5 ft. across.  Old super duper Grand eruptions had steam phases, no?</DIV> <DIV> </DIV> <DIV>You can go the other direction and ask: how many fountain type geysers have cones?  I think Castle acts downright individual well-separated bursts fountain-type sometimes.<BR></DIV> <DIV style="FONT-FAMILY: times new roman, new york, times, serif; FONT-SIZE: 12pt"><BR> <DIV style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 10pt"><FONT size=2 face=Tahoma> <HR SIZE=1> <B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> JEFFREY CROSS <jeff.cross@utah.edu><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> "geysers@lists.wallawalla.edu" <geysers@lists.wallawalla.edu><BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tue, February 1, 2011 8:49:10 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Geysers] Widest Cone-Type Vent<BR></FONT><BR>Which cone-type geyser has the widest vent?<BR><BR>Giant's vent is said to be 5 x 7 feet.<BR><BR>Steamboat's vent could be larger, but I have never heard a reliable estimate of its true size.<BR><BR>I cannot think of a vent wider than 5 x 7 feet for which the eruption is cone-type.<BR><BR>Larger vents certainly exist, but the eruptions from them give fountain-type bursting eruptions.<BR><BR>Jeff Cross<BR><A href="mailto:jeff.cross@utah.edu" ymailto="mailto:jeff.cross@utah.edu">jeff.cross@utah.edu</A>_______________________________________________<BR>Geysers mailing list<BR><A href="mailto:Geysers@lists.wallawalla.edu" ymailto="mailto:Geysers@lists.wallawalla.edu">Geysers@lists.wallawalla.edu</A><BR><A href="https://lists.wallawalla.edu/mailman/listinfo/geysers" target=_blank>https://lists.wallawalla.edu/mailman/listinfo/geysers</A><BR></DIV></DIV></div><br> </body></html>