Karstic subsidence structure with limestone, quartz and clay with iron hydroxide (red). This photo was taken in Pedreira do Galinha, Serra de Aire, Po

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Karstic subsidence structure with limestone, quartz and clay with iron hydroxide (red). This photo was taken in Pedreira do Galinha, Serra de Aire, Portugal.

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Size: 8256px × 5504px
Photo credit: © José María Barres Manuel / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: aire, clay, de, galinha, geology, hydroxide, iron, karst, karstic, limestone, pedreira, portugal, quartz, serra, subsidence