[Geysers] ok....answer me this

[Cindy Rose]

Sheri--

Marker ash beds are fairly common. While taking a class at the Yellowstone
Institute, our instructor showed us marker beds of Glacier Peak ash in
varve-like layers at a site close to Indian Pond by the Lake. A friend here
in Casper who did his field work in the Absaroka volcanics found ash from
both the first cataclysm and subsequent resurgent events in Kansas. As far
as the fission track dating of this ash sample goes, it seems kind of like
hunting a shrew with an elephant gun, but what the heck, for 10 bucks you
aren't out much. Its "purity" is in question, however, as an ash deposited
600,000 YBP is going to have some "contamination" in it by way of pollen,
etc. If you are going through Kansas someday though, you can probably scrape
up your own sample from the roadside somewhere if you pack a Roadside Guide
to the Geology of Kansas, which should give you some idea where this marker
bed is exposed.

FYI,see:

http://www.geology.uno.edu/Totten2/GulfP.html
http://64.233.167.104/search?q=cache:mTZxdZsRrL8J:pangea.stanford.edu/~mac/pdf/Gansecki%2B%25201998.pdf+Yellowstone+ash+in+Kansas&hl=en

--Cindy