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Title: Exfoliation in Granodiorite
Caption: Exfoliation in granodiorite rock in British Columbia. This type of exfoliation, also known as sheeting, happens when igneous rocks formed deep underground are exposed at the surface. The release of pressure causes them to expand and fracture, and then layers flake off.
Category: Geology & Fossils
Credit: Album / Science Source / Fletcher & Baylis
Image size: 5127 × 3407 px | 50.0 MB
Print size: 43.4 × 28.8 cm | 2018.5 × 1341.3 in (300 dpi)