Fossilised ripple marks. Cyclic and rhythmic aeolian stratification in a slab of sandstone. Small-scale, fossil ripple structures in a slab of sandsto

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Fossilised ripple marks. Cyclic and rhythmic aeolian stratification in a slab of sandstone. Small-scale, fossil ripple structures in a slab of sandstone. Here the ripple marks stand out clearly due to the varying grain size and the iron content of the very thin, wind-deposited layers. Specimen from the Jurassic Navajo formation, southern Utah state, USA.

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Size: 5132px × 3543px
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aeolian, america, american, archaeological, archaeology, archeological, archeology, climatological, climatology, close-, cyclic, deposit, deposits, detail, formation, fossil, fossilised, fossilized, fossilology, geographical, geography, geological, geology, historical, history, jurassic, layer, layers, mark, marks, meteorological, meteorology, navajo, north, prehistoric, prehistory, rhythmic, ripple, ripples, sandstone, small-scale, state, states, strata, stratification, stratified, united, usa, utah, weather, wind, wind-deposited