Lab Assignment for Unit 40
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Read about rock-collecting at the USGS site. Follow the suggestions for collecting procedures to gather at least 15 rocks from your field area. Using a field guide tor rocks and minerals (if you don't have one, use the Rock Identification Key), identify as many of your samples as possible. Group them into igneous, sedimentary, and metamorphic rock groups.
If you cannot collect rocks on your own, use the rock collection picture here and do your best to identify the samples shown.
Your report should include a description of your field site where you found your rocks, and a list of the rocks by type, with brief descriptions.Also list any build-up and tear-down forces which may be working to create or destroy rock material in your field area. [In most places, tear-down forces are easier to find: weathering occurs constantly.]
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