Very Big Rocks

Hey, and if you're lucky, you might even find BigFoot.

Do they look like a school of dolphins? if they do, then that would suggest that they are rock knobs. Produced by moving sheet ice, rather than valley glaciation. If they are erratics then they can be buried in boulder clay, which was itself transported by ice. You'll need to make a note of how the rocks' long axis is orientated. This gives clues as to the direction the ice moved. One also has to allow for erratics being dumped in the same area over several ice movements. Something else to look out for is drumlins. These are tear drop shaped relict hills, often with swampy lakes and hollows between them. In northern Europe these things are well mapped out but in the States, simply because of the relative population density in certain areas, little work has been done on mapping past ice flow. See if you can get some local geologist to help you, it's very important work. How ice flowed on Mars springs to mind as the fruits of such study. A for instance of that, is the classic pyramidal form (Matterhorn) of glacial eroded mountains.

(Edited) Oh yeah, on domes. These things can be rather confusing. With erosion we get a central dome of resistant rock then several rings of in facing hills. Yet the Nashville dome is actually a depression, although it's stil rising!The central dome is eroding, being less resistant. Add to that, the ground is also tilting and the rivers were establishd before the doming began and it all adds up to a rather complicated picture.

Can you find a DEM map of the area?

Got one but I'm not sure if it's of the right Barstow, as there are two of em []


Here's the region tilted and with a lot of exagerated depth added to it.

Apparently, I don't need to present actual data. Its either Big Foot or dolphins. The matter has been decided!

Gregg Wilson

Hi Greg, I wasn't being facetious, rock knobs are always described as looking like the backs of dolphins.

If they were created by ice, then they can't have been shaped during the last ice age, as it didn't get so far south. That's why I think it would be of great interest to find out what they are.

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by Stoat</i>
<br />Hi Greg, I wasn't being facetious, rock knobs are always described as looking like the backs of dolphins.

If they were created by ice, then they can't have been shaped during the last ice age, as it didn't get so far south. That's why I think it would be of great interest to find out what they are.
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

I apologize Stoat. Let's wait for the evidence. I will be able to post pictures, calculations and precise location on about March 18th.

Gregg Wilson