The GOSA website has a nice description @ URL http://geyserstudy.org/geyser.aspx?pGeyserNo=MORTAR or URL http://geyserstudy.org/geyser.aspx?pGeyserNo=FAN Simply put a “lock” is when the upper vents of Fan erupt strongly and continuously in concert. It’s not a simple as that, of course. I’ll let others define it more fully if they’re so inclined. Thanks, Udo Freund "Even if you're on the right track, you'll get run over if you just sit there." --Will Rogers From: geysers-bounces at lists.wallawalla.edu [mailto:geysers-bounces at lists.wallawalla.edu] On Behalf Of Bob Mabery Sent: Thursday, August 18, 2011 1:38 PM To: geysers at lists.wallawalla.edu Subject: EXTERNAL: [Geysers] F&M - What's a "Lock"? I read with interest the detailed descriptions of the varied cycles of Fan and Mortar. Is there someplace that I can read a definition of the elements of the cycle, perhaps with photos? For example what is a "lock?" BobInGA W4YBB "Your Buddy Bob" -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20110818/42df050c/attachment-0001.html>