Posted: Feb 28, 2010 9:59 pm
Thanks guys. Speculate away Theropod, I'm learning new stuff 
As long as you don't mind.
I've been busy trying to find out the age of the rocks around here. I finally found this map http://www.maine.gov/doc/nrimc/mgs/explore/bedrock/facts/geol-hist-1.htm and I'm certain that I lie either in the area of middle Ordovician to middle Devonian, or Cambrian to middle Ordovician. That map has no reference points, and I am near the border of the 2 zones.
Also, this region was affected by glaciers. There is vertical strata along the same brook...by strata I mean the layers of sediment in boulders, etc, that are visible in lines
The rock seems like a ball of igneous rock with sedimentary rocks stuck to the outside. I know little more than that for terminology unfortunately. The igneous rock looks and feels like granite, but it "glistens" more, is darker, and looks like it might be more dense. The "teeth" also look like granite, of a lighter, more familiar color than in between the teeth. They also "glisten". It's appears to be 4 different small rocks stuck to the outside. It's a little dirty from brook sediment. I turned it over on it's side and a small piece of the corner flaked off from the darker colored sedimentary rock. It revealed a reddish stain on the interior. I see that a lot with sedimentary rocks found in the area. There is a dark flaky sedimentary rock on both flat sides, and also a gray colored rock on both sides that is more solid. I think it is sedimentary also because I found another rock in the brook with definite fossils in this type of rock. It looks somewhat like compressed beach sand.
I might have some luck finding someone in the area with at least a little working knowledge, but no one I can think of yet. Population here, 247
I took many more pictures, but my camera is pretty lousy at close-ups.
Here is the other fossil I found, about 10-15 yards downstream, and 3 years prior.
Top
http://xs.to/image-4721_4B729C91.jpg
Bottom
http://xs.to/image-F459_4B729C91.jpg
Edit: Edited on behalf of the Op - Mazille
As long as you don't mind. I've been busy trying to find out the age of the rocks around here. I finally found this map http://www.maine.gov/doc/nrimc/mgs/explore/bedrock/facts/geol-hist-1.htm and I'm certain that I lie either in the area of middle Ordovician to middle Devonian, or Cambrian to middle Ordovician. That map has no reference points, and I am near the border of the 2 zones.
Also, this region was affected by glaciers. There is vertical strata along the same brook...by strata I mean the layers of sediment in boulders, etc, that are visible in lines
The rock seems like a ball of igneous rock with sedimentary rocks stuck to the outside. I know little more than that for terminology unfortunately. The igneous rock looks and feels like granite, but it "glistens" more, is darker, and looks like it might be more dense. The "teeth" also look like granite, of a lighter, more familiar color than in between the teeth. They also "glisten". It's appears to be 4 different small rocks stuck to the outside. It's a little dirty from brook sediment. I turned it over on it's side and a small piece of the corner flaked off from the darker colored sedimentary rock. It revealed a reddish stain on the interior. I see that a lot with sedimentary rocks found in the area. There is a dark flaky sedimentary rock on both flat sides, and also a gray colored rock on both sides that is more solid. I think it is sedimentary also because I found another rock in the brook with definite fossils in this type of rock. It looks somewhat like compressed beach sand.
I might have some luck finding someone in the area with at least a little working knowledge, but no one I can think of yet. Population here, 247
I took many more pictures, but my camera is pretty lousy at close-ups.
Here is the other fossil I found, about 10-15 yards downstream, and 3 years prior.
Top
http://xs.to/image-4721_4B729C91.jpg
Bottom
http://xs.to/image-F459_4B729C91.jpg
Edit: Edited on behalf of the Op - Mazille