24.6 MB (1.8 MB compressed)
3353 x 2568 pixels
28.4 x 21.8 cm ⏐ 11.2 x 8.6 in (300dpi)
SIMON FRASER / SCIENCE PHOTO LIBRARY SIMON FRASER / SCIENCE PHOTO LIBRARY
Classic example of entablature & colonnade formations of a basalt lava flow, near the Aldeyjarfoss waterfall, Iceland. The entablature is the folded structure immediately above the hexagonal basalt columns that form the colonnade. A fine-grained basic igneous rock, basalt is the most common type of lava.
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