Go to the following Geotours Folder in Google Earth: 2. Exploring Geology Using

Question

Go to the following Geotours Folder in Google Earth: 2. Exploring Geology Using Google Earth ? Geotour Worksheets ? B. Plate Tectonics. Check the boxes next to “Seafloor Age Map” and “Earthquakes” folders to view the ages of oceanic crust around the world and selected 1986-2005 earthquakes color-coded by depth, respectively. Make the map semi-transparent. Also, in the Layers panel, turn on Borders and Labelsand Gallery ? Volcanoes.

Subduction ultimately produces a volcanic arc on the overriding plate (placemark Problem 3b). What is the depth of the majority of earthquakes directly beneath the volcanic arc associated with the Mariana Trench?

0-50 km

51-100 km

101-200 km

201-400 km

0-50 km

51-100 km

101-200 km

201-400 km

Explanation / Answer

The distribution of the earthquake reveals the location of the subducting plate beneath the Mariana trench, and the subduction starts from the depth of 100 km of the Mariana trench. Thus the correct approach is 101-200 km , where the majority of earthquake is associated.

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.