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by: Felicia Hyde

Tester MATH 124

Felicia Hyde

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About this Document

Elementary Statistics
Vera Klimkovsky
Class Notes
Earth Science
25 ?




Popular in Elementary Statistics

Popular in Math

This 2 page Class Notes was uploaded by Felicia Hyde on Friday September 2, 2016. The Class Notes belongs to MATH 124 at San Francisco State University taught by Vera Klimkovsky in Fall 2016. Since its upload, it has received 4 views. For similar materials see Elementary Statistics in Math at San Francisco State University.


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Date Created: 09/02/16
Geol 270 Environmental Geology Reading Assignment #1 The Last Extinction: Megabeasts’ Sudden Death Watch the PBS video, The Last Extinction, and answer the following questions. The link to the video is posted on ilearn. To receive credit, turn in the assignment via ilearn . See course schedule for due date. Prepare to have an in-class discussion about these questions and the video. If it’s helpful, list any questions or comments that you would like to discuss in-class. 1. What is the black matt and what does it signify? The black matt is considered to be an extinction boundary formed by decayed plants and algae creating a dark layer of rock, located in a riverbed in Southern Arizona near the Mexican border. 2. What is the significance of detecting iridium below the black matt? Iridium, one of the rarest elements in the earth’s crust, is also present in cosmic material. If there is any evidence present within a particular layer it provides suspect, “Was there a cosmic event?” the detection of iridium below the layer of black matt is significant in the sense of understanding the generations of animals on earth suffered and were destroyed by a cosmic disaster. 3. What is the name of the prehistoric human hunters? The prehistoric human hunters were known as the Clovis, who was also questioned to be an alternate cause of the extinction of animals within North America. The Clovis people have appeared to have arrived before the black matt layer did. 4. What is the significance of the hexagonal nano-diamonds? Hexaongal nano-diamonds, imbedded in carbon structures, was important because they only occur within craters and meteorites and were only able to be created through a high pressured blast, thus verifying that there was an asteroid, comet, any form of cosmic material had an impact on the earth. “Clearest indicator of an extra-terrestrial impact”. Geol 270 Environmental Geology 5. Why was glacial ice such an optimum target to study and sample? Glacial ice was such an optimum target to study and sample because an impact on the glacial ice could have explained the lack of a crater.


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