>This is the perfect example of how constructive debate can
>lead to credible theories. During the conversations between
>you, myself, and Mephisto I have made a couple important
>1. If the rings in this formation were caused by interaction
>with groundwater (which does not conflict known processes)
>2. If, as I pointed out in a post below this formation was
>exposed to weathering only recently (due to sharp edges being
>present that would be attacked first by erosion).
Are you saying that spheroid weathering cannot produce sharp edges? Usually sharp edges are produced by mechanical weathering mechanism (like exfoliation and frost wedging, and dependent on the climate in this region frost wedging could certainly play a role in the weakening of the separations rock produced by spheriodal weathering) but you will notice by the definition below spheriodal weathering is stated to be similar to exfoliation produced usually by mechanical weathering.
>3. We have found a completely natural explanation for the
>These rocks were underground for an extremely long time
>interacting with groundwater, then were recently (keep in
>mind that I mean recent in a geologic sense) exposed and are
>now starting to be weathereed.
By what weathering mechanism...
I will reiterate the definition of spheriodal weathering:
spheroidal weathering A form of chemical weathering in which concentric shells of decayed rock (ranging in diameter from 2 cm to 2 m) are successively loosened and separated from a block of rock by water penetrating the bounding joints or other fractures and attacking the block from all sides. It is similar to the larger-scale exfoliation produced usually by mechanical weathering. Syn: onionskin weathering; concentric weathering; spherical weathering.
Do you have another weathering mechanism that produces concentric separations of the host rock bounded by joint planes?
> The recent exposure would be
>due to the erosion of the soil by wind or water. (Most
>likely water runoff because the trees would somewhat protect
>from the wind)
That is right the main mechanism of erosion is runoff which is eroding the weathered rock... remember weathering involves little to no transport of the debris.
Archae Solenhofen (firstname.lastname@example.org)
>I don't know about you guys, but this seams like a very
>rational and plausible solution to me. Let me know what you