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- n. 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
Problems and application of lichenometry to geomorphic studies, San Juan Mountains, Colorado.
Dating rock surfaces by lichen growth ant its application to glaciology and physiography (lichenometry). pp.1044-1062 IN Geology of the Arctic (G.O. Raasch ed.)