GEOL111GAssign9-20-ADA

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New Mexico State University *

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111G

Subject

Geology

Date

Dec 6, 2023

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docx

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3

Uploaded by DoctorCheetahPerson1995

Geology 111G Assignment 9 Plate Tectonics 1. Plate Tectonics Quiz : Go through the interactive and take the quiz. Take a screen shot of your Final Score page and paste below. 2. Dynamic Earth : Go through the interactive and take the quiz at the end. Take a screen shot of your score and paste below. 3. Google Earth: Plate Tectonics a. Download and open up the Earth’s Tectonics Plates .kmz file. Then, turn on the Earthquakes and Volcanoes layers from the previous assignment. Look at where plate boundaries, volcanoes, and earthquake occur, zooming in on the New Zealand to American Samoa region. Explain in 3-5 sentences how they are related to one another. Take a screen shot of your observations. Answer: The tectonic plate boundaries are closely associated with the
Geology 111G Assignment 9 Plate Tectonics frequency of earthquakes and volcanoes in the area running from New Zealand to American Samoa. Complex plate interactions, mainly the subduction of the Pacific Plate underneath the Australian Plate, are what identify this region. Volcanic activity is produced by subduction, resulting in the formation of volcanic arcs like the Kermadec and Tonga arcs. b. Download and turn on the Age of Ocean Floors .kmz file. Look at the ages of the seafloor in both the Atlantic and Pacific oceans. In which ocean is the plate is spreading the fastest? How do you know? Answer: The Atlantic Ocean is expanding faster than the Pacific Ocean. The Atlantic has a considerably higher pace of plate spreading due to its generally younger seabed, based on the gradient of seafloor age away from the mid- ocean ridges in each ocean. 4. NOAA Learning Objects a. View Lesson 2 - Mid-Ocean Ridges. Click through the site to learn about the ridges and then complete the Mid-Ocean Ridge map. Take a screen capture of your map and paste it below. Continents to label: white boxes on map (Africa, Asia, Australia, Europe, North America, South America Plate tectonic plates to label: yellow boxes on map (Central Indian Ridge, East Pacific Rise, Juan de Fuca Ridge, SE Indian Ridge, SW Indian Ridge) Age of sea floor to label: green boxes on map (0-48 my, 48-56 my, 56-118 my, 118-142 my, 142-157 my, 157-180 my)
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