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List the four main functional subsystem in a GIS?
- data input system
- data storage and retrieval subsystem
- data manipulation and analysis subsystem
- data output and display subsystem
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If you were entering data for a GIS with road colocationsm road widths and road conditions what are :
-qualitative, quantitative and spatial attribute
- Qualitative attribute: Road conditions
- Quantitative attribute: Road Widths
- Spatial: Road Locations
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What are 6 features in a cross-section of a subduction zone at an ocean-continent collision?
- The oceanic plate dives below the continental plate
- An ocean trench occurs where the two plates meet
- Fold mountains forms at the coast of the continental plate
- Melting occurs near the upper surface of the subducting oceanic plate
- Andesite volcanoes form on the continental plate
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Sketch a seismograph indicating the arrival of a compressive first motion
and sketch one indicating the arrival of a dilational first motion
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Consider the pattern of first motions below showing the focus of an earthquake E-W pattern, draw the arrows and determine lateral slip?
It is a right lateral slip
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Briefly explain the principla of original horizonality
Sedimentary rocks form in horizontal or near horizontal layers
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Explain The principle of Stratigraphic superposition
In any sequence of strata, not disturbed, no layer disturbed, the order in which they are deposited is from the bottom to the top.
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Explain the principle of cross-sutting relations
If a sedimentary sequence is disturbed by a fault or another rock unit cutting across the original strata, the fault or cross cutting unit is younger than the strata that were disturbed.
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Explain angular unconformity:
Represents a break in the deposition record. It indicates a period of regional uplift, followed by erosion and eventual subsidence below water level again. New sedimentary strata are deposited on the erosional surface. Strata are tilted during uplift and/or folding. the erosion surface is almost horizontal.
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Explain disconformity
Like angular conformity, but the strata are not tilted. As the erosion surface is almost horizontal and parallel to the layers of sedimentary rock
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Explain inclusions:
If pieces of sedimentary rock layer are in a layer of igneous rock, the layer of sedimentary rock is older then the igneous layer. And vice versa: if hte igneous was in an adjacent layer of sedimentary rock, the igneous is older.
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Consider the geological cross-section shown below.
From A to K
A,B,C,D,E,F, EROSION SURFACE AT BOTTOM OF LAYER G, H, I,J,K
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Compute the height of the small space pod observation dock on hte CN tower based on the following information:
- 2 digital photographs were taken of hte CN tower and Skydome vicinity from a small fixed aircraft flying at an altitude of H=750m.
-The plane was flying east at a speed of 300 km/hr
-Photo1 was taken at 9:21:07 am and photo 2 at 9:21:12 am.
-Camera has a focal length of 28 mm
- Top of space pod was located on photograph ! at x=20.1 mm
- Photo 2 x= -18.3mm
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