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 rightarrow Geotour Worksheets rightarrow 1. Geologic Structures. Faults are typically classified in one of three main categories: normal, reverse and strike-slip. The following questions will take you to locales that provide examples of these faults. Placemark Problem 3c highlights another area east of Problem 3b that has experienced extension along a series of nromal faults, forming a series of half grabens. If the extensional stresses that are stretching the rocks are approximately perpendicular to the fault traces, which direction are the stresses oriented? Choose one: N-s E-W NW-SE NE-SW

Explanation / Answer

The fault plane is oriented along north-south,as evidenced from the fault traces,so the extension stresses are in the direction east-west.

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