silt bed

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• Coal bed methane extraction — (CBM extraction) is a method for extracting methane from a coal deposit. Contents 1 Basic principles 2 Areas with coal bed methane extraction 3 Measuring the gas content of coal …   Wikipedia

• sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium

• river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …   Universalium

• Sedimentary rock — Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah, USA Sedimentary rock are types of rock that are formed by the deposition of material at the Earth s surface and within… …   Wikipedia

• Yellow River — For other Yellow Rivers, see Yellow River (disambiguation). Huang He redirects here. For the actor, see Huang He (actor). Yellow River (Huang He) Current Course of the Yellow River with major cities Origin …   Wikipedia

• environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

• harbours and sea works — Introduction harbour also spelled  harbor        any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …   Universalium

• Huang He — /hwahng hue /, Pinyin. a river flowing from W China into the Gulf of Bohai. 2800 mi. (4510 km) long. See map under Chang Jiang. Also, Hwang Ho. Also called Yellow River. * * * , or Huang Ho English Yellow River River, northern central and eastern …   Universalium

• glacial landform — ▪ geology Introduction  any product of flowing ice and meltwater. Such landforms are being produced today in glaciated areas, such as Greenland, Antarctica, and many of the world s higher mountain ranges. In addition, large expansions of present… …   Universalium

• Plata, Río de la — Estuary of the Paraná and Uruguay rivers, between Uruguay and Argentina. It is about 170 mi (275 km) long, with a maximum width at its mouth of about 140 mi (220 km); at Montevideo it is about 60 mi (97 km) wide but narrows gradually to the… …   Universalium

• Geology of the Capitol Reef area — [ Waterpocket Fold is the major geographic feature in the area of the park. This view is from above Capitol Reef Scenic Drive looking back at the west face of the broken and eroded fold.] The exposed geology of the Capitol Reef area presents a… …   Wikipedia