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Unformatted text preview: Geol 331: Igneous & Metamorphic Petrology McCutcheon & El-Shazly, 2002 Field trip to the St. Francois Mountains, Missouri March/ April every other year Preparation for the trip: Read the sections in your textbook on 1- Calderas, cauldron subsidence, ring dykes, cone sheets, and intrusive features 2- Go over the different types of granites in your notes and text. 3- Go over the classification of pyroclastic rocks. 4- Study the differences between ash flow tuffs and lava flows (Table 1 of Lab 7). 5- Study all the textures of volcanic and pyroclastic rocks (completing lab 7 would help immensely!) Things to bring with you: 1- Brunton compass (check it out from Janice) 2- Rock hammer, preferably a sledge hammer. 3- Hand-lens + pocket knife 4- Measuring tape (check out the measuring wheel from Nancy). 5- Clipboard, field notebook, marker pens, pencils, rulers, erasers, and sharpeners. 6- Hiking shoes and clothes that are comfortable and water resistant. Plan on getting wet while working on the Johnson Shut-ins section (last day)! 7- Packed lunches for 2 days. 8- Calculator, or do the calculations for the Graniteville stop before leaving! Please note that as per UTM policy, no alcoholic drinks are allowed on this field trip. Consumption of alcoholic beverages is also prohibited during the entire duration of this trip. Itinerary: Friday at 3:00 p.m.: leave UTM parking lot Arrive in Fredricktown MO between 6 and 7:00 p.m. Eat dinner and spend the night at the EconoLodge (Tel: 573-783-2500). Saturday morning: Breakfast at Fredricktown; prepare packed lunches. Hit the road ~ 8:30 a.m. Cover stops 1 and 2. Lunch at the Silvermine stop. Saturday afternoon: Cover stops 3, 4 & 5. Check into Fort Davidson Motel at dusk (Tel: 573-546-7427), eat dinner and retire. Sunday morning: Breakfast at Fort Davidson. Prepare packed lunches. Leave for stops 6 and 7 at ~ 8:00 a.m. Leave Taum Sauk picnic area ~ 11:00 a.m. Expected arrival at Martin ~ 2:00 p.m. Geol 331: Igneous & Metamorphic Petrology McCutcheon & El-Shazly, 2002 Field trip to the St. Francois Mountains, Missouri Stop 1 ROAD CUT ON HIGHWAY 72 WEST OF FREDERICKTOWN The three rock types exposed in this outcrop belong to the two units: Grassy Mountain Ignimbrite, and the Lamotte Sandstone (Figs 1 & 2). 1- SKETCH the outcrop exposed on the south side of highway 72, including as much detail as possible. Be sure to identify each of the 3 rock types, and to label them clearly. Dont forget the scale bar!...
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This note was uploaded on 02/28/2012 for the course GLY 421 taught by Professor Staff during the Fall '11 term at Marshall.
- Fall '11