lichenometry
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lichenometry |
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| navigate by keyword : air alp alps austria austrian black boulder climatologist delineated determine europe european flat flora fungi geographicum green grow growing height high landscape lichen lichenometry line lines low map mountainous natural nature patch patches pollution rhizocarpon rock rocks rocky spore spores stone tyrol valley zillertal |
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| Map lichen upon boulders along the Zamser Bach, mountain stream in the Tyroler Zillertal Alps in Austria. The map lichen or Rhizocarpon geographicum is a species of lichen, which grows on rocks in mountainous areas of low air pollution. Each lichen is a flat patch bordered by a black line of spores. Map lichen is a lichen widely used by climatologists in determining the relative age of deposits, e.g. moraine systems, thus revealing evidence of glacial advances. The process is termed lichenometry. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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