| 单词 | boulder clay |
| 释义 | boulder clay noun[U] geologyspecializeduk/ˈbəʊl.də ˌkleɪ/us/ˈboʊl.dɚ ˌkleɪ/atypeofheavy,stickysoilfulloflargerocksthat isformedin and betweenlargeareasofice 泥砾层；冰砾土Soil
Examplesofboulder clayboulder clay Boulderclayis classed with a group of poorly sorted materials, described by the non-genetic term diamicton. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.Boulderclayand clays are also found south of the village. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Boulderclayis also abundant and moraines cover substantial areas. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.So only at the margins of an ice sheet would the fluctuating sedimentary record be preserved, whereas interior glaciation might compound tills in final deposits ofboulderclay. From theCambridge English Corpus We will not, for example, have the fritillary without water meadows, nor the oxlip without ancientboulderclaywoods. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 It is sour, limeless,boulderclay, with not very good drainage, and an unfortunate predilection for growing rushes. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 They told me that they had run into 12 kilometres ofboulderclayand that it was improbable that they would be able to bury the pipeline for that length. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0 The valley bottoms have a thin deposit ofboulderclay. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The local drift geology is mostly glacialboulderclay, as well as glacial sands and gravel. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The clay-rich hilltop soils are primarily a consequence of blanketing of the area withboulderclayor glacial till during the recent glaciations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Till, also known asboulderclay, is a mix of unconsolidated sediment with a range of grain sizes (clay-boulder). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Muchboulderclayis of a bluish-grey until exposed to weather which causes a transformation to a brown colour. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Beneath the pasture the archaeology is onboulderclayoverlying magnesian limestone. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The earliest masonry building was the church, which was constructed on shallow foundations of sandstone rubble and pebbles onboulderclay. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.It consists of ancient semi-natural woodland on aboulderclaysoil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.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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