- alluvial sand ripples
- 河成砂纹
English-Chinese geology dictionary (英汉地质大词典). 2013.
English-Chinese geology dictionary (英汉地质大词典). 2013.
sand dune — Hill, mound, or ridge of windblown sand or other loose material such as clay particles. Dunes are commonly associated with desert regions and seacoasts, and there are large areas of dunes in nonglacial parts of Antarctica. * * * Introduction any … Universalium
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
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
Sediment — Cobbles on a beach River Rhône flowing into Lake Geneva … Wikipedia
Uluru — For the band, see Ayers Rock (band). Coordinates: 25°20′42″S 131°02′10″E … Wikipedia
Tumblagooda sandstone — The Tumblagooda sandstone is a geological formation deposited during the Silurian or Ordovician periods, around four to five hundred million years ago, and is now exposed on the west coast of Australia, straddling the boundary of the Carnarvon… … Wikipedia
Glacier — This article is about the geological formation. For other uses, see Glacier (disambiguation). The Baltoro Glacier in the Karakoram, Kashmir, Northern Pakistan. At 62 kilometres (39 mi) in length, it is one of the longest alpine glaciers on… … Wikipedia
chile — /chil ee/, n. chili. * * * Chile Introduction Chile Background: A three year old Marxist government was overthrown in 1973 by a dictatorial military regime led by Augusto PINOCHET, who ruled until a freely elected president was installed in 1990 … Universalium
Chile — Chilean, adj., n. /chil ee/; Sp. /chee le/, n. a republic in SW South America, on the Pacific Coast. 14,508,168; 286,396 sq. mi. (741,765 sq. km). Cap.: Santiago. * * * Chile Introduction Chile Background: A three year old Marxist government was… … Universalium
Taiwan — /tuy wahn /, n. Wade Giles, Pinyin. a Chinese island separated from the SE coast of China by Taiwan Strait: a possession of Japan 1895 1945; restored to China 1945; seat of the Republic of China since 1949. Cap.: Taipei. Also called Formosa. * *… … Universalium
Central Africa — Introduction region of Africa that straddles the Equator and is drained largely by the Congo River system. It comprises, according to common definitions, the Republic of the Congo (Brazzaville), the Central African Republic, and the… … Universalium