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March 12, 2012
Monday Geology Picture: Listwanite Hills in the Sultanate of Oman
Today I am going to share some pictures of listwanite (also sometimes spelled listvenite, listvanite, or listwaenite), an unusual rock type that I bet even some of the well-educated geologists who read this blog have never seen or even read about. I don’t even think there’s a wikipedia entry about listwanite. Perhaps I’ll write one after my thesis defense next month. Listwanite forms when ultramafic rocks (most commonly mantle peridotites) …
April 15, 2011
Geology Word of the Week: T is for Travertine
Travertine terraces, Yellowstone, Western USA, Fall 2005. After a month’s absence because of the Fukushima interviews, I am resuming the geology word of the week. For my new readers, every week I blog about a geology word. Over the past several months, I have been working my way through the alphabet, from A is for Alluvium to S is for Speleothem. I hope you enjoy this weekly feature! def. Travertine:1. …