Dike in Granite

About This Item

Photo of a natural dike running through granite. Dikes are formed when magma crystallizes underground as it is flowing up toward or out of the surface of preexisting rock. The dikes are revealed through erosion.

Created by
Pestrong, Ray
Date
Type
Slide
Format
TIFF
Source
Ray Pestrong Geosciences Slide Collections, San Francisco State Unviersity
Locale
Rights
Public
Views
1062

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