Lava Flow, Prismatic Basalt, 1778
Engraving by Claude Fossard, de Veyrenc showing lava flowing down a volcano to form a street of prismatic basalt, 1778. Basalt is a very common igneous rock. Prismatic columns are formed when deep lava flows cool slowly, this causes shrinkage and the most popular form taken is hexagonal. The number of column sides does vary and some are almost square
Picture No
12698025
Media ID
47677603
Size
4800px x 3136px
(2.0MB)
Credit
Science Source/Mary Evans
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1700s 1778 Auvergne Basalt Basaltic Columnar Eighteenth Enhancement Flow Geochemical Geologic Geological Geologically Geophysical Geoscience Hazard Igneous Lava Prismatic Volcanic Volcanism Volcano Volcanology Vulcanology
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