| 词汇 | rift-valley |
| 释义 | rift valley noun[ C ] uk /ˈrɪft ˌvæl.i/ us /ˈrɪft ˌvæl.i/ a valley with steep sides formed by movements of the earth's surface裂谷;地堑 Geography: valleys abyss arroyo canyon chasm cirque cwm dale defile dell glen gorge gulch gully hanging valley inter-valley landform ravine vale valley wadi Examples of rift valleyrift valley Rivers on that side therefore carry sediment away from the riftvalley. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. We saw the food aid that was being provided to help to mitigate the effects of the drought in the riftvalley. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 A great riftvalley also extends along the ridge over most of its length. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Several maar lakes exist in the riftvalley adjacent to the volcano. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are at least 20 hot springs, characteristic of a riftvalley, in the valley or on its escarpments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There have been recent earthquakes along the riftvalley, the most recent being in 2000. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Over millions of years, the riftvalley was faulted, tilted, and eroded, until the edges of the hard flood basalt layers formed ridges. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As the riftvalley sank, the deposits were overlaid by sediment, which turned to rock under pressure. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Again, the floor of the riftvalley is quite flat here providing a marked contrast to the escarpment. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are some hot springs characteristics of a riftvalley to the east. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are known kimberlite pipes within the riftvalley that are considered to be diamondiferous. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Raised coral reefs along the east coast and the frequent occurrences of earthquakes in the riftvalley indicate that the fault block is still rising. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The half grabens may have alternating polarities along the rift axis, dividing the riftvalley into segments. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. During this period of evaporation large evaporite deposits will be made in the riftvalley. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The intervening dropped blocks are termed graben: these can be small or form extensive riftvalley systems. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. See all examples of rift valley These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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