A few points about last week ’ s lab test
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Transcript of A few points about last week ’ s lab test
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A few points about last week’s lab test
• Wrong answers vs. BAD answers– E.g., mineral is “quartz” rock is “rock gypsum”– E.g., rock is “metamorphic” and “non-clastic”– E.g., rock is “sedimentary” and metamorphism
is “regional”– E.g., rock is “sedimentary” and then give a
metamorphic name (and v.v.)– …
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Last week’s lab
• Messy work – influences grade.
• Work in PENCIL!!!!!
• The point is not to get it done (i.e., get it done as fast as possible and out of lab as fast as you can)
• The point of the lab is to do it (i.e., do it carefully, neatly, completely and understand what you’re doing)
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Landforms
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Meanders and oxbow lakes
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Topographic profile
• Across Gaspereau Valley– Use the Leaning Object to remind yourself
how to do this (if you need to).– Use pencil and don’t draw on map– Follow the instructions
• Position (UTM coordinates)• Vertical scale (1:5 000)
– How far apart are the lines of the profile? – What does that convert to in the “real world”?
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Determining Longitude & Latitude
• Use the Learning Objects
• Or you can use Google Earth®
Longitude LO
Latitude LO
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Groundwater and water levels
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Groundwater and water levels
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Groundwater and water levels
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Groundwater and water levels
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Groundwater and water levels
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Groundwater and water levels
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Contouring lake levels
• Use contour values to determine lake surface heights– Assign an arbitrary x-5 value (i.e., 5 m lower
than closest contour)
• Contour the lake surface heights – This is a contour of the groundwater surface
• Show direction of groundwater flowNote that not all enclosed depression contours will have “ticks” on them.
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Contouring lake levels
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90 80 70
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Valley before glaciation
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Valley during glaciation
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Valley after glaciation
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Cirque
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Cirque – contour pattern
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Arete
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Arete – contour pattern
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Horn
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Horn – contour pattern
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Hanging valley
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Hanging valley – contour pattern
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Moraine
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Topographic profile
• Across Paradise Valley– Use the Leaning Object to remind yourself
how to do this (if you need to).– Use PENCIL and don’t draw on map– Follow the instructions
• Position (UTM coordinates)• Scale (1:20 000)
– How far apart are the lines of the profile? – What does that convert to in the “real world”?
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Comparison of two valleys
• Drop a “pin” at the two locations given (one in the Wolfville area, one in the Lake Louise area)
• Zoom in
• Tilt, and rotate to the correct viewing direction (ask us how to do this if you cannot work it out for yourself)