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I could not find a geology item so here it is.
5 responses total.
Jim wanted me to post his poem, written at the end of his field report to fill up the required fourth page. This is the required 'conclusion'. 13,000 years ago the glaciers ruled this land. They laid down clay and silt and rocks and also lots of sand. The sand formed eskers, it formed kames, drumlins, and end moraines, recessional and terminal, and sandy outwash plains that dry fast when it rains. The drained moraines are mainly in the plains. Ice chunks fell off and melted and left holes below the till, and water filled them up and there are kettle lakes there still. The lowland silt is good for farms, the sandy plains are not unless organic matter builds up and begins to rot. The glaciers gone, the river flows, though now it has grown small, and where the apples used to bloom, students view a rock wall. In Intro to Geology they contemplate past ages, and add to trip reports a rhyme to fill a full four pages.
Very very gneiss.
gneiss.
*groans*
This response has been erased.
In the Chilean earthquake there was westward movement of Chile up to 3+ meters. Map at http://researchnews.osu.edu/archive/chilequakemap.htm The map implies that a lot of the motion was elastic rebound. That is, when the quake unlocked the South American plate from the Pacific plate, the South Smerican plate expanded elastically further over the pacific plate.
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