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stratification
(Encyclopedia) stratification (Lat.,=made in layers), layered structure formed by the deposition of sedimentary rocks. Changes between strata are interpreted as the result of fluctuations in the…The Journals of Lewis & Clark: July 16, 1805
by Meriwether Lewis and William Clark July 15, 1805July 17, 1805July 16, 1805 Tuesday July 16th 1805. We had a heavy dew last night sen one man back this morning for an ax that he…Geology of the Grand Canyon: Weathering.
CORRASION.WEATHERING.The work of corrasion is limited to the cutting of narrow gashes in the strata, and the grinding up of the fragments brought into the river channels. The widening of…When Music and Politics Collide
From Verdi to Pussy Riot, musicians use their lyrics and music as a vehicle to express their political views. by Jennie Wood Pussy Riot at Lobnoye Mesto on Red Square, Moscow Photo…paleomagnetism
(Encyclopedia) paleomagnetism, study of the intensity and orientation of the earth's magnetic field as preserved in the magnetic orientation of certain minerals found in rocks formed throughout…roulette
(Encyclopedia) rouletterouletter&oomacr;lĕtˈ [key], game of chance popular in gambling casinos, and in a simplified form elsewhere. In gambling houses the roulette wheel is set in an oblong table…crossbill
(Encyclopedia) crossbill, bird of the genus Loxia, in the finch family. Its bill, crossed at the tips, is specialized for pulling apart pine cones and picking out the seeds. Crossbills are found in…Rivers of the United States
(350 or more miles long)Alabama-Coosa (600 mi.; 966 km): From junction of Oostanula and Etowah R. in Georgia to Mobile R.Altamaha-Ocmulgee (392 mi.; 631 km): From junction of Yellow R. and…oolite
(Encyclopedia) ooliteooliteōˈəlīt, ōˈō– [key], rock composed of small concretions, usually of calcium carbonate, containing a nucleus and clearly defined concentric shells. In the British Isles…The Journals of Lewis & Clark: Clark, July 30, 1806
Day 1561 Day 1563 Clark, July 30, 1806 Friday 30th July 1806 Set out early this morning at 12 miles arived at the Commencement of Shoals the Chanel on the Stard Side near a high bluff.…Trending
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