Regelation of ice through debris at glacier beds: Implications for sediment transport
Regelation of ice through debris at glacier beds: Implications for sediment transport
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通过冰川床碎片重新凝结冰：对沉积物运输的影响
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
N. Iverson
中科院分区：
文献类型：
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作者：
N. Iverson
实验室实验的结果表明，冰在融化温度下通过磨损岩床的碎屑上的密集的三维阵列重新凝结。尽管碎屑有相对运动和来自床的热量传入，但孤立、静止的碎屑阵列的再凝结理论成功地近似了冰与床分离的周期、热梯度和碎屑床接触力。该过程可能会在冰川床中夹带沉积物，并将沉积限制在冰中沉积物集中、有效压力低、基底融化速度快的区域。
Results from laboratory experiments show that ice at its melting temperature regelated through dense, three-dimensional arrays off clasts abrading a rock bed. Regelation theory for an isolated, stationary array of clasts successfully approximates periods when ice separated from the bed, thermal gradients, and clast-bed contact forces, despite the relative motion of clasts and incoming heat from the bed. The process may entrain sediment at glacier beds and restrict deposition to zones where sediment in ice is concentrated, effective pressure is low, and basal melting is rapid.