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417 words used in the labs.

Find a term from the labs, understand the process behind it, and see how it appears in the landscape. Each entry connects an explanation with a real observation and a model you can explore.

Convergent

Describing a plate boundary where plates move towards one another. Dense oceanic lithosphere may be subducted, while a continent–continent collision thickens the crust. The plate types determine whether a trench, volcanic arc or broad mountain belt develops.

What to look for

The Himalaya from the ISS: crust shortened and thickened as India collided with Eurasia.

Snow-covered Himalayan peaks and valleys photographed from the International Space Station.
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Explore further with USGS water glossary · USGS volcano glossary · NPS glacial geology · NASA Earth facts. Photograph acknowledgements are collected on the Image credits page.