- subaqueous deposit
- 水底沉积
English-Chinese geology dictionary (英汉地质大词典). 2013.
subaqueous deposit
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Subaqueous fan — A subaqueous fan is a fan shaped deposit formed beneath water (similar to deltas or terrestrial alluvial fans), and are commonly related to glaciers [cite journal |first=H.A.J. |last=Russell |coauthors=Arnott, R.W.C. |title=Hydraulic jump and… … Wikipedia
dredge-deposit shoal — A subaqueous area, substantially shallower than the surrounding area that resulted from the deposition of materials from dredging and dumping (modified from Demas 1998). Compare: dredged channel, shoal. SSS … Glossary of landform and geologic terms
Mudrock — Glacial Lake Missoula claystone Red mudrock in the Ragged Reef Formation ( … Wikipedia
shoal — 1) (noun) a) A relatively shallow place in a stream, lake, sea, or other body of water; a shallows. b) A natural, subaqueous ridge, bank, or bar consisting of, or covered by, sand or other unconsolidated material, rising from the bed… … Glossary of landform and geologic terms
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
Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… … Universalium
continental landform — ▪ geology Introduction any conspicuous topographic feature on the largest land areas of the Earth. Familiar examples are mountains (including volcanic (volcanism) cones), plateaus, and valleys. (The term landform also can be applied to… … 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
washover fan — A fan like deposit of sand washed over a barrier island or spit during a storm and deposited on the landward side. Washover fans can be small to medium sized and completely subaerial, or they can be quite large and include subaqueous margins… … Glossary of landform and geologic terms
Mining — This article is about the extraction of geological materials from the Earth. For the municipality in Austria, see Mining, Austria. For the siege tactic, see Mining (military). For name of the Chinese emperor, see Daoguang Emperor. Simplified… … Wikipedia
density current — Geol., Oceanog. See turbidity current. * * * Any current in either a liquid or a gas that is kept in motion by the force of gravity acting on small differences in density. A density difference can exist between two fluids or between different… … Universalium
