| 释义 |
Definition of colluvium in English: colluviumnounkəˈl(j)uːvɪəmkəˈlo͞ovēəm mass nounGeology Material which accumulates at the foot of a steep slope. Example sentencesExamples - Bronze Age and Neolithic pottery and flints from the basal soil and the colluvium indicate that a settlement was nearby.
- In the southern part of the valley, the Serghaya Fault Zone follows the mountain front juxtaposing recent alluvium and colluvium against late Quaternary lake sediments, Neogene conglomerates, and Cretaceous carbonates.
- Archaeologists can use the evidence of pollen, alluvium (flood-deposits), and colluvium (hill-wash) to study the past environment.
- Soils of the gap floor are Andover, a deep, poorly drained loam of low permeability derived from sandstone and shale colluvium.
- Deposits formed on hill slopes are called colluvium where they are fine-grained, and taluvium if they are of coarse-grained rock debris.
Derivatives adjective Geology Allochthonous sediments enter the cave system through a number of processes, including aeolian, fluvial, colluvial, biogenic, glacial, marine, and human activity. Example sentencesExamples - The increase of phosphorus and potassium from the bottomlands to ridge tops recorded in our study is the reverse of the more usual pattern of having richer colluvial aprons in the valleys within the Pennsylvania Ridge and Valley Province.
- A few hundred metres to the east, the trachy-phonolitic breccias, debris flows, colluvial and alluvial deposits of Agulo record the volcanic activity and the erosion of the east flanks of the Vallehermoso stratovolcano.
- Recent faulting is expressed as freshly exposed soil within the colluvial apron visible by its light tan colour.
- In addition, secondary topaz crystals, released from matrix by erosional forces, have been found in both alluvial and colluvial sediments adjacent to topaz-bearing pegmatites.
Origin Mid 20th century: from Latin colluvies 'confluence of matter', from colluere 'to rinse', from col- 'together' + luere 'to wash'. Definition of colluvium in US English: colluviumnounkəˈlo͞ovēəm Geology Material which accumulates at the foot of a steep slope. Example sentencesExamples - Deposits formed on hill slopes are called colluvium where they are fine-grained, and taluvium if they are of coarse-grained rock debris.
- In the southern part of the valley, the Serghaya Fault Zone follows the mountain front juxtaposing recent alluvium and colluvium against late Quaternary lake sediments, Neogene conglomerates, and Cretaceous carbonates.
- Bronze Age and Neolithic pottery and flints from the basal soil and the colluvium indicate that a settlement was nearby.
- Archaeologists can use the evidence of pollen, alluvium (flood-deposits), and colluvium (hill-wash) to study the past environment.
- Soils of the gap floor are Andover, a deep, poorly drained loam of low permeability derived from sandstone and shale colluvium.
Origin Early 20th century: from Latin colluvies ‘confluence of matter’, from colluere ‘to rinse’, from col- ‘together’ + luere ‘to wash’. |