Basalt is the most common volcanic rock, constituting nearly all of the oceanic crust and covering parts of the continents. This gallery presents some of basalt's variety, on land and in the ocean.
Pictures 1–3, 9–12 and 14–16 are flood basalt; pictures 4, 7 and 8 are ocean island basalt; 5, 6 and 13 are continental basalt; and 17 is an ophiolite basalt. Learn more about these in About Basalt.
More about basalt:
About Basalt
Free wallpaper image of basalt
More wallpaper images of basalt
Still more basalt wallpapers
Other volcanic rocks
Volcanism in a nutshell
Go see basalt:
Geology of California, Oregon, Washington, Idaho, Alaska and Hawaii
Visit Iceland
- Massive BasaltBasic black
- Fresh and Weathered Massive BasaltEnsure a fresh face
- Vesiculated BasaltVesiculated means bubbly
- Porphyritic BasaltPorphyritic means full of crystals
- Amygdaloidal BasaltWith filled-in vesicles
- Basalt Flow SurfaceStretched by flow
- Pahoehoe and Aa BasaltOne recipe, two outcomes
- Profile of Aa Basalt FlowSee how it's done
- Hexagonal Jointing in BasaltSix-sided chunk
- Columnar Jointing in BasaltCracked in all directions
- Columnar Basalt in Eugene, OregonAn urban basalt vehicle
- Superimposed Basalt FlowsNote the preserved surfaces
- Graphic Index
- Text Index
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