“hanging valley”的概念、定义、翻译、参考文献-科学参考

hanging valley

Geology and Earth Sciences

Tributary valley whose floor is well above that of the adjacent main valley and where there is therefore often a waterfall. It is typical of glaciated uplands, where it may result from glacial widening and/or deepening of the main valley.

Geography

A high-level tributary valley from which the ground falls sharply to the level of the lower, main valley. The depth of the lower valley may be attributed to more severe glaciation: ‘the height of a hanging valley reflects the difference in the time-integrated ice discharge in tributary and trunk valleys and therefore increases as the discharge ratio decreases…The rate of production of hanging valley relief increases strongly as the ratio of the tributary to trunk ice discharge decreases’ (MacGregor et al. (2000) Geology 28, 11). The level of a hanging valley may be used as an indicator of glacier ice thickness (Kuhle (2005) Island Arc 14, 4).
Brocklehurst et al., Geomorph. 97, 1–2, observe that while hanging valleys show glacial modification of a landscape, the overall change in the relief structure of mountain ranges is surprisingly modest.

单词	hanging valley
释义	hanging valley Geology and Earth Sciences Tributary valley whose floor is well above that of the adjacent main valley and where there is therefore often a waterfall. It is typical of glaciated uplands, where it may result from glacial widening and/or deepening of the main valley. Geography A high-level tributary valley from which the ground falls sharply to the level of the lower, main valley. The depth of the lower valley may be attributed to more severe glaciation: ‘the height of a hanging valley reflects the difference in the time-integrated ice discharge in tributary and trunk valleys and therefore increases as the discharge ratio decreases…The rate of production of hanging valley relief increases strongly as the ratio of the tributary to trunk ice discharge decreases’ (MacGregor et al. (2000) Geology 28, 11). The level of a hanging valley may be used as an indicator of glacier ice thickness (Kuhle (2005) Island Arc 14, 4). Brocklehurst et al., Geomorph. 97, 1–2, observe that while hanging valleys show glacial modification of a landscape, the overall change in the relief structure of mountain ranges is surprisingly modest.
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