[Rockhounds] New Yellowstone hotspot theory

[Tim Fisher]

This may be incidental but I collect rocks & fossils in a few of the hotspot's previous calderas. There is evidence for calderas west of the McDermitt caldera (the westernmost caldera on the map). https://en.wikipedia.org/wiki/Yellowstone_hotspot#Nevada%E2%80%93Oregon_calderas The new caldera discovered west of McDermitt is the Virgin Valley, home to the best precious opal in North America. Most of the more recent calderas also produce some of the prettiest petrified wood and picture jaspers in NA. As you can tell I spend quite a bit of time in them :)

Tim Fisher
Orerockon.com
Email nospam at orerockon.com


-----Original Message-----
From: Rockhounds [mailto:rockhounds-bounces at rockhounds.drizzle.com] On Behalf Of J Bryan Kramer
Sent: Thursday, July 26, 2018 5:58 AM
To: Rockhounds at drizzle.com: A mailing list for rock and gem collectors
Subject: [Rockhounds] New Yellowstone hotspot theory

<https://vtnews.vt.edu/articles/2018/07/Science-yellowstone_supervolcano_origins.html>

A subducted plate?

BK

“The problem isn’t that Johnny can’t read. The problem isn’t even that Johnny can’t think. The problem is that Johnny doesn’t know what thinking is; he confuses it with feeling.”

Thomas Sowell

J Bryan Krämer       North Florida, USA
photos at: http://pbase.com/photoburner

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