LAB 3 - Brandon Smith GEOG 1403, 2/17/09 1403 Online Lab 6...

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Brandon Smith GEOG 1403, 2/17/09 1403 Online Lab 6 Metamorphic Rocks Ch-5: P. 79-87 PLEASE CHOOSE A FONT COLOR OTHER THAN BLACK FOR YOUR ANSWERS Read pages 79-87 in your lab manual very carefully. Have your common rocks set available see metamorphic samples . Answer the following problems: 1. Define metamorphic rock: Metamorphic rock s are crystalline rocks that form from other rocks. 2. Metamorphic rocks are subdivided into two major textural groups: FOLIATED and NONFOLIATED. Divide metamorphic samples into these two categories. a. Foliated: Gneiss, Slate, Mica-Schist b. Nonfoliated: Quartzite, Serpentine, Marble 3. Many foliated metamorphic rocks form by the metamorphism of shale; the more intense (or higher grade) the metamorphism, the coarser the crystals contained in the rocks. a. Select from among your samples that may have been derived from shale, and arrange them according to metamorphic grade (see Table 5.2) Lowest grade: Slate Intermediate grade: Quartzite (has a varying metamorphic grade), Mica-Schist,
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This note was uploaded on 03/02/2009 for the course GEOL 1403 taught by Professor Wilson during the Spring '09 term at Texas A&M.

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LAB 3 - Brandon Smith GEOG 1403, 2/17/09 1403 Online Lab 6...

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