a few points about last week’s lab test wrong answers vs. bad answers –e.g., mineral is...
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LandformsTRANSCRIPT
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.)– …
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)
Landforms
Meanders and oxbow lakes
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”?
Determining Longitude & Latitude
• Use the Learning Objects
• Or you can use Google Earth®
Longitude LO
Latitude LO
Groundwater and water levels
Groundwater and water levels
Groundwater and water levels
Groundwater and water levels
Groundwater and water levels
Groundwater and water levels
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 flow
Note that not all enclosed depression contours will have “ticks” on them.
Contouring lake levels
95
95
85
95 8595
85
75
75
85
75
7565
65
65
65
90 80 70
Valley before glaciation
Valley during glaciation
Valley after glaciation
Cirque
Cirque – contour pattern
Arete
Arete – contour pattern
Horn
Horn – contour pattern
Hanging valley
Hanging valley – contour pattern
Moraine
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”?
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)