phreatic divide

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phreatic divide — an underground watershed. Marks the outer source of groundwater flow to a particular river. May be caused by sloped bedding planes for example … Geography glossary
Groundwater — Shipot, a common source of drinking water in a Ukrainian village. Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an… … Wikipedia
Geology of the Lassen volcanic area — The geology of the Lassen volcanic area presents a record of sedimentation and volcanic activity in the area in and around Lassen Volcanic National Park in Northern California, U.S.. The park is located in the southernmost part of the Cascade… … Wikipedia
Mayon Volcano — as viewed from Ligñon Hill in Legazpi City, Albay in December 2006 Elevation … Wikipedia
Mount Mazama — collapsed a large caldera, which was later filled with Crater Lake. Elevation 8,159 ft … Wikipedia
Gley soil — in soil science is a type of hydric soil which exhibits a greenish blue grey soil color due to wetland conditions. On exposure to the air, gley colors are transformed to a mottled pattern of reddish, yellow or orange patches. During gley soil… … Wikipedia
Geology of Mars — Mars Mars as seen by the Hubble Space Telescope Designations … Wikipedia
Trichomycteridae — Peces gato parásitos Vandellia cirrhosa … Wikipedia Español

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