On the cover: Sampling Gelolls in a fluvial drainage west of Galbraith Lake, Alaska. Aufeis is visible in the background along with the Brooks Range. See Characterization of Gelolls in northern Alaska, USA by Acree et al. Photo: David C. Weindorf.

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封面图片，第84卷，第3期

封面：在阿拉斯加加尔布雷思湖以西的一条河流排水渠中对吉洛尔进行采样。奥菲斯和布鲁克斯山脉在背景中都可见。参见Acree等人在美国阿拉斯加北部的Gelolls表征。照片：David C. Weindorf。