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Flawed but Grounded

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Flawed but Grounded / Photography by Tim Pile, Model Rebecca Tun, Post processing by Tim Pile / Uploaded 20th September 2024 @ 08:48 PM
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Photography by: Tim PileModel: Rebecca TunPost processing by: Tim PileKeyword tags: above, basalt, basalt columns, basalt rock, bird's eye view, drone, floor, from above, grey, grey rocks, Ground, Iceland, missing, Missing Pieces, Photography, rocksAlbums: 2023Groups: (Invite) None

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Added 1726865301 by Rebecca Tun.

Tim Pile, June 2023

Iceland

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"Basalt columns form when lava flows cool and contract, causing the ground to crack into long, geometric columns. This process is called columnar jointing.

Here's how it happens:

Lava flow: A large flow of hot magma settles.

Cooling: The outer layer of lava cools and darkens.

Cracking: The surface of the lava cracks into regular shapes. The cracks start at the top and bottom of the flow and move inward.

Contraction: The lava cools and contracts into cylinders.

The hexagonal pattern is the most efficient way to relieve tension on the rock. However, local effects can cause the columns to be pentagonal, heptagonal, or another irregular shape."

- an AI overview from a Google search result for 'how are basalt columns formed?'