September 9, 2013
Monday Geology Picture(s): More Glacial Erratics on the Lake
Posted by Evelyn Mervine
Last week, I shared a picture of me sunbathing by my favorite glacial erratic, which is located near the Mervine Family Cabin on Franklin Pierce Lake in New Hampshire. This week, I thought I’d share a few more pictures of glacial erratics on Franklin Pierce Lake. Note the large sizes of these erratics and also how many of them are fairly angular. The erratics are mostly igneous and metamorphic rocks, and many of them contain large feldspar crystals.
I took all of the pictures in this post during a few kayaking trips during a recent visit to my family in New Hampshire. I really enjoy observing geology by kayak– I should do so more often!
I found this erratic boulder particularly interesting (note the large feldspar phenocrysts and interesting texture):
It’s funny how i know where that last rock is. you get to know your rocks after a bit, and i remember thinking how nice looking that last one was. near where the water comes in right?