Re: Geology Question (KRS related)

Eric Stevens wrote:
"Peter Alaca" wrote:
Eric Stevens wrote:
"Peter Alaca" wrote:
Eric Stevens wrote:
"Steve Marcus" wrote
"Eric Stevens" wrote
"Steve Marcus" wrote

[...]
The KRS was found near the top of a hill and I have never
previously heard the point of discovery discovered as either
swampy or boggy.

Blegen, for example has it that the KRS was discovered on a knoll
"above swampy ground."

See - when provoked, you can provide a source. Do you really think
that this is evidence that the knoll itself is boggy? I very much
doubt that it is.

To use your own tactics: so you don't know yourself.

Of course I don't know, but if I excercised my common sense
I would not conclude that a hill of glacial till would be boggy.

Perhaps you are right in this case, but in general
your common sense is not reliable.

For some basics on bogs see
http://tinyurl.com/7acuc

For a good (Minnesota) soil course, see
http://tinyurl.com/a45jy
there e.g.
Unit 10 - Organic Matter, Peatlands, & Soil Erosion
Chapter 2 - Peatlands
http://tinyurl.com/7muln

Those are both good sites. My comment about the KRS site not being a
swamp or bog was based on several photographs I have seen. One of them
was taken at about the time of the finding and shows that the hill was
only sparsely populated by not very large trees. This is somewhere on
the web but I have not yet been able to find it. I have more recent
photographs which show the hill to now be grassy parkland.

If I am correct, the area falls in the transition between
the tall grass prairy and the full forrest area, making it
parkland.

There is no evidence of the hill being bog or swamp
in any of these. The foot of the hill is another matter.

I wanted to show you that a bog in natural
circumstances forms a dome and can
cover hills. And e.g. in scotland you can see
that blaket bog covers huges areas of hills

I cant remember how high the KRS was on the hill.
Was it 25 ft and the hill 40?

But I realy don't know how the situation in
SW Minnesota was. Today there are only
major bogs in the north.

Plate 1 in the WN book shows an aerial view of the
Ohman farm and gives a good idea of the general
topography.

Aerial photo's are online and I posted some last year.


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