SIA3805: Road Cut Exposing Trachyte Ash

Photographer:Rosanna Hamilton
Copyright:Copyright © 2010 Rosanna Hamilton
Date Added:2010/10/23
Location:Between Kahakuloa and Waihe'e, Maui

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This road cut has exposed ash beds displaying various polygon forms and rust colored bands having a bull's-eye appearance. The rust color is from iron oxide that has seeped into the ash through fractures. This concentric color ring effect is called diffusion bands.

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