Geology Lab 5 and Lab 6 Worksheet
Mecky18
GeologyLabModule3Lab5worksheet.doc|
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Lab - Sedimentary Rocks
Pre-Lab Questions
1. What are meteorites?
2. What are meteorites made of? How does this compare to the lithosphere, asthenosphere, mantle, and core of the Earth?
3. Describe how igneous rocks are transformed into sedimentary rocks.
4. Clastic sedimentary rock type is defined by _____________.
5. What physical features distinguish chemical sedimentary rocks?
Experiment 1: Outer Space to Earth: Meteorite or Not?
The following table is from the experimental procedure and may help you as you work through the Post-Lab Questions.
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Table 1: How to Determine if a Rock is a Meteorite (if you didn’t see it fall!) |
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Meteorite Characteristics |
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A meteorite usually is darker on the outside because it heats up when passing through the atmosphere and can acquire regmaglypts that look similar to thumbprints but erode over time. |
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The meteorite surface may fade from black to rusty brown because of weather. Over time, too, because of their mineral content, meteorites can rust or have a patina caused by oxidation. |
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A meteorite is irregularly-shaped. It is not round. |
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A meteorite has iron and other heavy minerals, which makes it heavier than other rocks. Depending on the meteorite type, it may be 1.5 - 3 times heavier than a normal Earth rock. |
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Meteorites don’t have holes or vesicles. |
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A meteorite has iron-nickel metal so it attracts a magnet. Magnets are more attracted to iron meteorites than stony meteorites. |
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A meteorite does not leave a streak. |
Post-Lab Questions
1. Take a Virtual Tour of the Meteorite Vault at Arizona State University Center of Meteorite Studies: http://meteorites.asu.edu/news/take-a-virtual-tour-of-the-new-meteorite-collection-area. Describe at least three of the meteorite examples.
Experiment 2: Sedimentary Rock Identification
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Table 2: Sedimentary Rock Classifications |
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# |
Particle Shape |
Grain Size |
Color |
Other Observations |
Rock Name |
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(If Applicable) |
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M |
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N |
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O |
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P |
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Q |
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R |
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Post-Lab Questions
1. Which of the samples were clastic? Among these samples, which of these experienced the most abrasion during transport? Explain your reasoning.
2. Were any of the samples chemical sedimentary rocks? Explain your reasoning.
