Plate tectonics 101—What happens when plates slide past each other?

Oceanic crust is created at divergent plate boundaries and destroyed at convergent boundaries, but transform boundaries cause neither; rather, they transform motion between other types of plate boundaries, enabling plates to move about efficiently on our spherical planet. In this post, we will explore various examples. The majority of transform boundaries are found in the ocean, where they separate segments...
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The geology of Point Reyes National Seashore

Although not as widely known as Yellowstone and Yosemite, Point Reyes National Seashore is particularly loved by residents of the San Francisco Bay Area. Just an hour's drive from downtown San Francisco, Point Reyes feels a world away and provides a welcome refuge from urban life. Most also know that the San Andreas fault (SAF) extends through the park and...
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About the Blogger

Karen (here with Mt. Shasta in background) is a geology professor emerita who aims to provide a "pocket geologist" for world travelers. Follow the blog to explore the landscapes of our planet and figure out what causes them to look the way they do.

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