Photomicrograph of gabbro from Mt. Megantic, Monteregian Hills, 40X, crossed-polars

Igneous and Metamorphic Petrology Laboratory
 89.506

 

 

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Schedule

Class Date

 Topic

 Reading

 Assignment 
1/23  Review of optical crystallography. Identification of minerals in thin section.    Thin Section Microscopy  Identification of minerals in thin section
1/30  Hand specimen identification of igneous rocks  Chapter 2 - PowerPoint (Winter)

 Identify igneous rocks in hand specimen

 List of Samples
2/6  Rocks in thin section - Gabbros & peridotites  Chapter 3 - PowerPoint (Winter)

Igneous rock textures

 Prepare a petrographic report for each specimen.

 Sample report

 Estimating Modal Percentages

 Michel-Levy

 Carlsbad-albite
2/13  Rocks in thin section - Basalts, diorites, and andesites    Prepare a petrographic report for each specimen.
2/27  Rocks in thin section - Nepheline syenite, phonolite, monzonite, and latite    Prepare a petrographic report for each specimen.
3/5  Rocks in thin section - Syenites and extrusive silicic rocks    Prepare a petrographic report for each specimen.
3/26  Rocks in thin section - Granite family    Prepare a petrographic report for each specimen.
4/2  Hand specimen identification of metamorphic rocks  Classification of metamorphic rocks  Identify metamorphic rocks in hand specimen
4/9  Rocks in thin section - Metamorphic rocks I  Chapter 22 -  PowerPoint (Winter)  Prepare a petrographic report for each specimen.
4/23  Rocks in thin section - Metamorphic rocks II    Prepare a petrographic report for each specimen.
4/30  Rocks in thin section - Metamorphic rocks III    Prepare a petrographic report for each specimen.
5/7  Lab Final    Write petrographic reports for two unknown rock specimens. Two hour time limit.