lichenometry

lichenometry
a geomorphic method of geochronologic dating that uses lichen growth to determine the age of exposed rock: lichens are presumed to increase in size radially at specific rates as they grow

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  • Lichenometry — In archeology and paleontology, lichenometry is the study of dating a surface using lichens as age markers: lichens increase in size radially as they grow. Measuring the diameter of the largest lichen on a rock surface can thus be used to… …   Wikipedia

  • lichenometry — …   Useful english dictionary

  • Lichen — For other uses, see Lichen (disambiguation). Lichenes from Ernst Haeckel s Artforms of Nature, 1904 …   Wikipedia

  • Geochronology — A schematic depiction of the major events in the history of our planet. Geochronology is the science of determining the age of rocks, fossils, and sediments, within a certain degree of uncertainty inherent to the method used. A variety of dating… …   Wikipedia

  • Map lichen — Rhizocarpon geographicum Scientific classification Kingdom: Fungi Division …   Wikipedia

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  • Columbia River — Coordinates: 46°14′39″N 124°3′29″W / 46.24417°N 124.05806°W / 46.24417; 124.05806 …   Wikipedia

  • Common Era — BCE redirects here. For other uses, see BCE (disambiguation). Era Vulgaris redirects here. For the Queens of the Stone Age album, see Era Vulgaris (album). Common Era (sometimes Current Era[1] or Christian Era[2]), abbreviated as CE, is an… …   Wikipedia

  • Chronicle — For other uses, see Chronicle (disambiguation). Generally a chronicle (Latin: chronica, from Greek χρονικά, from χρόνος, chronos, time ) is a historical account of facts and events ranged in chronological order, as in a time line. Typically,… …   Wikipedia

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