Rock glaciers in the Pyrenees, Spain and France, Version 1

This study and inventory of active rock glaciers was carried out by means of the usual techniques used in the study of alpine permafrost. First, the rock glaciers were located by means of aerial photography and field work. Second, a detailed geomorphological map was prepared, to detect the active processes in each rock glacier. This includes geotransect and surface analysis (clast roundness, clast forms, particle orientation and lichenometric measurements). Third, complementary measurements (water temperature and BTS [bottom temperature of snow] measurements) were carried out. These three studies allowed us to determine the activity or inactivity of previously detailed landforms, and to classify them as active, inactive, or relict rock glaciers. The external landforms, frontal slope, vertical organization, flow forms, absence of lichens and the descriptive parameters of rock glaciers allowed us to classify them as relict or active ones.On the Besiberri, Gemelos, and Argualas rock glaciers we have carried out photogrammetric studies, and on the Argualas rock glacier we carried out a topographic survey from 1991 and also geoelectric soundings (San Jose et al. 1992; Serrano et al. 1995; Fabre et al. 1995). These data are presented on the CAPS Version 1.0 CD-ROM, June 1998.本研究针对活动岩石冰川（active rock glaciers）的调查与编目，采用了高山多年冻土（alpine permafrost）研究领域通用的技术手段。首先，通过航空摄影与野外调查确定各岩石冰川的分布位置；其次，编制详细地貌图以识别每处岩石冰川的活动过程，该环节涵盖地貌断面分析、表面特征分析（包括砾石圆度、砾石形态、颗粒定向以及地衣测量）；第三，开展补充测量工作，包括水温与雪底温（bottom temperature of snow, BTS）测量。上述三项研究可用于判定此前已详细记录的地貌的活动性，并将其划分为活动、非活动或遗迹岩石冰川。此外，岩石冰川的外部形态、前缘坡度、垂直结构、流动形态、无地衣覆盖特征及各类描述性参数，可辅助将其归类为遗迹或活动岩石冰川。针对贝西伯里（Besiberri）、赫梅洛斯（Gemelos）与阿尔瓜拉斯（Argualas）三处岩石冰川，本研究开展了摄影测量研究；针对阿尔瓜拉斯岩石冰川，还开展了1991年的地形测量及电测深法（geoelectric soundings）探测（San Jose等，1992；Serrano等，1995；Fabre等，1995）。上述数据已收录于1998年6月发布的CAPS 1.0版光盘中。