page_title: Lava delta
section_title: Uses
hierarchical_section_title: Lava delta / Uses
caption_attribution_description: garachico-total
context_page_description: Lava deltas, similar to river deltas form wherever sufficient sub-aerial flows of lava enter standing bodies of water. The lava cools and breaks up as it encounters the water, with the resulting fragments filling in the adjacent seabed topography such that the flow can move further offshore sub-aerially. Lava deltas are generally associated with large-scale, effusive type basaltic volcanism.
context_section_description: On steep-sided volcanic islands, lava deltas make attractive sites for building and many villages and towns are located on old lava deltas, such as Garachico on Tenerife.
caption: The town of Garachico, Tenerife, built on a lava delta formed during the 1706 eruption
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