Friday, September 28, 2012

Bedrock and Surficial geology


The bedrock for site 10 was a mix of Dunham dolostone and limestone, (the green on the image below is Dunham dolostone) which was exposed to the surface on the top half of our hectare. The dolostone was smoother then the limestone and a was a dark grey color and reacted slightly in the hydrochloric acid test. The limestone was a rough white rock that appeared very similar to concrete and reacted strongly to the HCl test.

The loam for site 10 was FaE Farmington extremely rocky loam at a roughly 40% slope. We had a very thin layer of organic material before we hit the parent material, which was about a foot deep, and then we hit bedrock. The soil had a small amount of clay in it which allowed it to form slight ridges in your hand if you rolled it between your fingers. The soil had a pH of 7.5 which is slightly basic and explained why most of the trees were birch and other hardwood trees, such as this hornbeam otherwise known as musclewood.