tag:blogger.com,1999:blog-19032021.post4926815879759744888..comments2024-03-22T06:40:33.409-07:00Comments on Earthly Musings - My Travel and Geology Blog: Join Me on the Alsek River in the Yukon Territory and Southeast Alaska on a Geology-Themed Raft Trip, August 2017 Wayne Ranneyhttp://www.blogger.com/profile/15571579037328414935noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-19032021.post-76250530019634871762016-06-14T11:06:23.227-07:002016-06-14T11:06:23.227-07:00Can you comment on the possible formation process ...Can you comment on the possible formation process of the "Interesting rock types from the Alexander terrane along the Alsek River?" It reminds me of my lava lamp about 20 minutes after turning it on, when the green goo squirts up to the top. Perhaps calcite gets hot enough to squirt up into the pyroxene and cool? I think I saw lots of this rock up on Rialto Beach in Olympic NP. Perhaps the geology of Olympic NP, De Fuca subduction and accretion, is similar to that up near the Alsek river? The subduction melting could support the lava-lamp behavior model. Do you have a more informed story?Chrishttps://www.blogger.com/profile/01861407526597371537noreply@blogger.com