gel4050 igneous and metamorphic petrology page1 ... gel4050 igneous and metamorphic petrology page2

GEL4050 Igneous and Metamorphic Petrology Page1 ... GEL4050 Igneous and Metamorphic Petrology Page2
GEL4050 Igneous and Metamorphic Petrology Page1 ... GEL4050 Igneous and Metamorphic Petrology Page2
GEL4050 Igneous and Metamorphic Petrology Page1 ... GEL4050 Igneous and Metamorphic Petrology Page2
GEL4050 Igneous and Metamorphic Petrology Page1 ... GEL4050 Igneous and Metamorphic Petrology Page2
GEL4050 Igneous and Metamorphic Petrology Page1 ... GEL4050 Igneous and Metamorphic Petrology Page2
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  • GEL4050 Igneous and Metamorphic Petrology Page1

    METAMORPHIC THIN SECTION PT PROJECT LAB - A 150 POINT field and laboratory hands on applied geology project lab -

    Note: Anything marked in gray is filled in by the instructor. All other fields, checks, and write-ups to be completed by you!

    Name: Section: Final Grade:

    /150

    INCLUDE THIS COVER PAGE WITH ALL YOUR ASSIGNMENT SUBMITTALS!

    GRADING:

    1st Submittal Document -To be turned in by the draft deadline-:

    The following Due Date Penalty applies: -20% / business day G 100% G 80% G 60% G 40% G 20% G 0%

    Overall 1st SUBMITTAL METAMORPHIC PRACTICAL Grade: %

    /50 x ___ penalty = /50

    Grading: 50 - number of faults = ASSIGNMENT POINTS G Title Page 4 3 2 1 G Introduction / Overview 5 4 3 2 1 G Thin Section Point Count Analysis: 10 9 8 7 6 5 4 3 2 1 G PT Diagram Model: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 G Conclusion: 7 6 5 4 3 2 1 G Citations: 4 3 2 1 G Other 5 4 3 2 1 Comments:

    -1pt deduction for ea. writing style, grammar, expression, factual error and/or uncertainty WARNING: Repeat infractions count multiple times! -3pt deduction for missing graphic

    FINAL DOCUMENT -To be turned in by the deadline-:

    The following Due Date Penalty applies: -20% / business day G 100% G 80% G 60% G 40% G 20% G 0%

    Overall FINAL SUBMITTAL METAMORPHIC PRACTICAL Grade: %

    /100 x ___ penalty = /100

    Grading: 100 - number of faults = ASSIGNMENT POINTS G Title Page 8 7 6 5 4 3 2 1 G Introduction / Overview 10 9 8 7 6 5 4 3 2 1 G Thin Section Point Count Analysis: 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 G PT Diagram Model: 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 G Conclusion: 14 13 12 11 10 9 8 7 6 5 4 3 2 1 G Citations: 8 7 6 5 4 3 2 1 G Other 10 9 8 7 6 5 4 3 2 1 Comments:

    -1pt deduction for ea. writing style, grammar, expression, factual error and/or uncertainty WARNING: Repeat infractions count multiple times! -6pt deduction for missing graphic

  • GEL4050 Igneous and Metamorphic Petrology Page2

    METAMORPHIC THIN SECTION PT PROJECT LAB - A 150 POINT field and laboratory hands on applied geology project lab -

    PROJECT LAB CONTENTS: 1. Title Page: Project Name, Author, Course 2. Introduction with location and geologic overview - 1 paragraph

    a. Figures: Location Map + Geologic Overview Map 3. Point Count Analysis: Very short procedural paragraph

    a. Figures: Photomicrograph(s) in PPL and XPL with Metamorphic Minerals Identified 4. PT Diagram Discussion - 1 paragraph

    a. Figure: PT diagram with PT maxima determined and most likely prograde retrograde path superimposed 5. Conclusion Paragraph 6. Citations - Should be compiled using Zotero (https://www.zotero.org/) Use the United States Geologics Survey

    (USGS) citation style in your document. You should have a minimum of 5 credible citations. Note: Once Zotero Standalone is installed, click on “Preferences” under the Edit tab. Once there click on “Cite” and go to the “Styles” tab. Click on the “Get additional styles...” below the Styles Manger Box. When the Zotero Styles Repository Window opens, click on the “geology” button within the “Fields” section. A list of geology journals should now appear. Scroll down to the U.S.Geological Survey and click on it. The U.S.G.S style will now be part of your Zotero system and you can now set your citations to be formatted accordingly in Zotero.

    Materials: 9 Metamorphic Rock Sample (Palmer Canyon or Other) 9 Thin Section of Sample 9 Optical Microscope with Grid Screen 9 Petrographic grid

    Procedure: OPTION 1: You will bring your own or be assigned a metamorphic rock sample from our collection. You will thin section

    the sample (or have it completed by an outside lab) and do a point count assessment. From the obtained data you will then complete an assessment of a Pressure Temperature point for the formation maximum and possible prograde and retrograde path of your metamorphic rock sample.

    OPTION 2: You will collect a metamorphic rock sample from the Palmer Canyon area (*field trip, see below). You will thin section the sample (or have it completed by an outside lab) and do a point count assessment. From the obtained data you will then complete an assessment of a Pressure Temperature point for the formation maximum and possible prograde and retrograde path of your metamorphic rock sample.

    INSTRUCTIONS G Do a mineral assessment of your thin section slide and identify minerals present. Use the NEW screen optical

    microscopes to do a point count analysis. G Use the included petrographic grid to estimate the PT point for your metamorphic rock. G Write the narrative summarizing your results as outlined above. Include location map and photos, photomicrographs

    showing minerals identified and your completed PT mineral diagram (electronically prepared!).

    (https://www.zotero.org/)

  • GEL4050 Igneous and Metamorphic Petrology Page3

    METAMORPHIC THIN SECTION PT PROJECT LAB - A 150 POINT field and laboratory hands on applied geology project lab -

    USE a PT diagram similar to the one pictured below. Mark or shade the stability area of your metamorphic rock in the Petrographic Grid and include in your write-up.

    In your write-up, describe the possible prograde and retrograde path your particular rock might have taken. Explain your reasoning!

  • GEL4050 Igneous and Metamorphic Petrology Page4

    METAMORPHIC THIN SECTION PT PROJECT LAB - A 150 POINT field and laboratory hands on applied geology project lab -

    SMALL Point Counting Template 10 x 10 = 100

    TINY Point Counting Template 10 x 10 = 100 for thin sections

    Point Counting Templates Please Print on clear plastic foil

    If printed on transparent material, the TINY grid can be taped to a thin section.

  • GEL4050 Igneous and Metamorphic Petrology Page5

    METAMORPHIC THIN SECTION PT PROJECT LAB - A 150 POINT field and laboratory hands on applied geology project lab -

    *Sample Collection Site for field trip option:

    Palmer Canyon (N/2 NW Section 18, T24N, R70W) (42°3'25"N; 105°17'10"W): The desired metamorphic rock occurs on a ridge along the southern flank of Palmer Canyon 17 miles west of Wheatland. Iolite occurs in a succession of Archean quartzofeldspathic gneiss, granite gneiss, metapelite, and biotite-chlorite-vermiculite schist north of the Elmer’s Rock greenstone belt. The site is accessible from the Palmer Canyon road which is paved to the forest boundary from Wheatland. It lies a short distance further west (in less than a mile) along the Palmer Canyon road and is just north of the road along a short jeep trail running east of the main road.

    WARNING WARNING WARNING

    It is imperative that you start collecting and analyzing your sample AS SOON AS POSSIBLE

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