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Fossilized Sea Creature Petrified in Paleolithic Stone Slab
Gallery Price $388.00. Eocene Epoch Sea Specimens found in the Green River Formation deposits are found in Colorado, Wyoming and Utah, generally along the present-day Green River. As an important lagerstatte, the Green River Formation sediments represent a continuous record of deposition that spans a 5 million year period from 53.5 to 48.5 mya. During that time, the uplift of the Rocky Mountains was nearly complete, creating a landscape of rugged mountain highlands separated by intermountain basins, many of which were occupied by lakes. Three primary ancient lakes identified from sediment concentrations have been given the names Lake Uinta, Lake Gosiute and Fossil Lake. Each lake represents deposits during different Tertiary timeframes. Sediment layering is evident in Formation deposits, where cyclicity is observed. Dark layers represent deposition during the growing season, while light layers were deposited during dry periods (winter). A pair consisting of a dark and a light layer is called a varve. Each varve represents an annual cycle of sedimentation (1 year). This regular, annual cyclicity of deposition, along with Chron C22r methods, radiometric dating and paleomagnetism make accurate dating of sediments possible. The PERFECT “Gift” for Man, Woman or Child that “has everything”...
Birthday, Anniversary, Christmas, Easter, Valentine’s Day or a Graduation Gift... Bid & Buy something you’ll have ForEver.
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