Friday, July 31, 2009

PFF: New Hampshire Geology

Staying in the east, following Massachusetts geology (see older post). Just to the north of Massachusetts, New Hampshire is known as the Granite State, and with good reason. Much of the northern portion of the state is underlain by igneous rocks, especially granite. To the south, the blue, purple and green hues indicate various metamorphic rocks, but look a those big blobs of yellow and pink. Those are the igneous rocks. Magma pooled underground long ago and slowly solidified, forming large crystals of different minerals. It could look like this:
New Hampshire's emblem is the Old Man of the Mountain. Formed out of a series of rock ledges, projecting out over a valley, viewed from a certain angle it looked like a craggy face. Until May 2003, that is. The rock ledges had been weakened by erosion and part of the face broke off. This New Hampshire website has more information and photos.

Happy PFF and Happy Geology!
See Marie's website for more postcards!

5 comments:

Blogaire said...

That's interesting about the Old Man of the Mountain. The 2003 erosion serves to remind us that nothing lasts forever. New Hampshire always reminds me of your Presidential election.
Have a nice weekend.

Terry said...

Howdy
Happy PFF to you.
Thank you for all the great background information to go along with this great post today.
I do wish you a fantastic rest of the weekend.
Take care.
Happy Trails

Sheila said...

That's all so interesting. What a shame about the Old Man of the Mountain. I feel some affinity with New Hampshire because I live in what could be called Old Hampshire, in the UK. :)

Debby said...

This is so interesting, great post. Thanks for sharing.

Marie Reed said...

Smiles! Hooray for New Hampshire! I adore it here. Manchester, NH is always on the top 10 list of US town to raise kids. There is ALWAYS something going on for them!b Happy PFF! Thank you for the wonderful post!

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