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U of M GEOL 3000 - Final Map Exercise

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GEOL 3000 Spring 2010 Geologic Mapping of the Grandview Area, Midway Township, St. Louis County, MN Final Exercise Schedule: Part I: Geologic Mapping SATURDAY (April 17) 8:00 AM - gather in classroom (Chem 207) through side door. - organize field gear - brief overview of the geology of the field area 8:45 AM - head to field area 9:15-12:00 - group traverse of the field area to introduce the main rock types 12:00-4:30 - disperse into mapping groups (2-4) 4:30 - gather at van for return to UMD SUNDAY (April 18) 8:30 AM - gather in classroom (Chem 207) through side door. - organize field gear 8:45 AM - head to field area 9:15-2:15 - disperse into mapping groups (2-4) 2:30 - depart field; return to UMD You are free to return to the field area on your own to collect more data What to bring: - Lunch - Water bottle - Base Map and map board * Geology Gear - Sturdy (waterproof?)boots/shoes - Brunton* (may need to share) - Rain gear (no ponchos) - GPS* (may need to share) - Glove and Hat - Colored Pencils (at least 6) - Backpack - Notebook and pencil - Magnet* * will be provided - Walkie-talkie* (may need to share) - Handlens* (bring it if you got it) - Hammer*(bring it if you got it) Part II: Training in ArcGIS and Illustrator (all classes in HH118 –computer room) No Lecture or Lab next week Bring Flash drives. Tues (April 27, 2-4 PM) – Introduction to ArcGIS Thurs (April 29, 2-4 PM) – Work on compiling field data into ArcGIS Tues (May 4, 2-4 PM) – Introduction to Illustrator CS4 Thurs (May 6, 2-4 PM) – Work on constructing map in Illustrator CS4Part III: Creating Geologic Map Required Elements for Final Geologic Map Map Sheet: 11”x 17” page (landscape or portrait) (see attached grading rubric for weighting of each element) Geologic Map to include: Topographic base Outcrops (single color or color-coded to map unit) Map Units (colored and labeled with unit abbreviations; e.g., TF for Thomson Formation) Geologic line work - contacts and faults (qualify as to confidence of location by different line types) Structure symbols – use different symbols for different structures (see http://pubs.usgs.gov/of/1999/of99-430/ for USGS recommendations for symbols) Traverse Lines Cross Section line (labeled X – X’) Description of Map Units to include: Color box with map unit abbreviation, e.g. Map units listed in chronologic order (youngest on top) Map unit descriptions should summarize the various rock types, textures, and structures observed throughout the map unit. Also describe the contact relationships with the adjacent map units. Correlation of Map Units diagram – arrange map unit color boxes with labels in proper chronological order. Unit that are closely related in origin or timing should touch; units with significant time gaps between them should be separated by a space. Cross Section – draw a single cross section with no vertical exaggeration along an E-W line. Colorize and label the units the same as in the geologic map. No need to qualify the different line types. Symbol Legend – key to all linework and structure symbols Other Components: Title (should include geographical references (e.g., Geologic map of the Tamarack Area, Swamp County, Minnesota) Author, Affiliation, and Date Scale Bar (in meters and feet), North Arrow, and Proportional Scale of map (e.g., 1:10,000) SUGGESTION – look at a published geologic maps to get ideas on layout and content. Due Date: Tuesday, May 11th by 5PM. o Adobe pdf file of your map1 What to turn in : o Arcview shapefiles (outcrop, traverse, structure, geo lines, geo units)1 o Field notes and Field map2 o Clipboard and any other equipment borrowed for project2 1) Send to Jim ([email protected]) by email attachment or drop off a jump drive (will be returned). 2) You can drop these in a box labeled “GEOL 3000” in the geology dept. office (Heller Hall 230). Your map will be printed out on an 11 x 17 sheet of paper. The map, field map, note and your final grading rubric can be picked up from the geology dept. office after Friday, May 15th. TFGEOL 3000 Spr 2010 Name________________________ Map Score ________/ 45 pts Grading Rubric for Final Geologic Map General Layout/Appearance _____/3 (8 pts) All requested components are shown _____/5 Comments: ___________________________________________________________________________ Outcrops, structure symbols, X-section line and traverse lines shown _____/4 Geologic Map (14 pts) Map units colored and labeled with unit abbreviations _____/2 Contacts and faults qualified as to confidence of location by different line types _____/2 Geologic interpretation reasonable based on lithologies, topography, outcrop control and structure _____/6 Comments: ___________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Map units listed in chronologic order with labeled color box _____/2 Description of Map Units (8 pts) Map unit descriptions adequately summarize the various rock types, textures, structures and contact relationships observed throughout the map unit _____/6 Comments: ___________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Map unit boxes with labels arranged in proper chronological order _____/2 Correlation of Map Units (5 pts) Spacing conveys reasonable inference about genetic relationships between units _____/3 Comments: ___________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ Units colored properly and labeled _____/2 Cross Section (8 pts) Contacts along section properly located to map _____/2 Subsurface interpretation reasonable based on lithologies and structure _____/4 Comments: ___________________________________________________________________________ _____________________________________________________________________________________


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