Debris transport in a temperate valley glacier: Haut Glacier d’Arolla, Valais, Switzerland
Debris transport in a temperate valley glacier: Haut Glacier d’Arolla, Valais, Switzerland
复制标题
温带山谷冰川中的碎片运输：瑞士瓦莱州阿罗拉上冰川
作者：
B. Goodsell;M. Hambrey;N. Glasser
摘要本文讨论了构造冰川学在瑞士瓦莱温带山谷冰川Haut Glacier d‘Aroll la的碎屑夹带、迁移和沉积中的作用。沉积学描述和最新分析已被用来确定冰结构和碎片运输之间的关系。已确定的关系是：(1)与裂隙痕迹有关的碎片，(2)原始层结中的落石物质折叠形成中间冰雹，以及(3)与重新激活的裂隙痕迹有关的土锥和工程碎屑层。介绍了一个概念性的模式1，以总结阿罗拉冰川冰川结构控制碎屑夹带和沉积的方式。
Abstract This paper considers the role of structural glaciology in debris entrainment, transport and deposition at Haut Glacier d’Arolla, a temperate valley glacier in Valais, Switzerland. Sedimentological descriptions and cIast anaIysis have been used to identify reIationships between ice structure and debris transport. Relationships identified are (1) debris associated with crevasse traces, (2) the folding of rockfall material incorporated within primary stratification to form medial moraines and (3) dirt cones and engIaciaI debris Iayers associated with reactivated crevasse traces. A conceptuaI modeI is introduced to summarize the manner in which ice structures at Haut Glacier d’Arolla control entrainment and deposition of debris.