ABSTRACT

Identification of the remnant traces of paleo-glaciers provides important proxies to understand the response of the environment to rapid climate changes. We present a 1:25,000 scale geomorphological map covering ∼12.5 km² of the upper part of Mount Bistra (North Macedonia) on the basis of remote sensing analyses and geomorphological surveys. Particular attention is given to the description of glacial and periglacial landforms, to the reconstruction of single glacier shapes and to Equilibrium Line Altitude (ELA) value calculation. The results of the survey and the reconstructed ELAs indicate the occurrence of three glacial phases that led to the formation of frontal and lateral moraines. The age of these phases is tentatively attributed to the Late Pleistocene by comparing these ELAs with those of other Balkan mountains. This map is the first step of a wider project aimed at reconstructing the relation between climate change and geomorphic response in this area.

摘要

古冰川残余痕迹的鉴定为了解环境对快速气候变化的反应提供了重要的代理。我们展示了一个 1:25,000 比例尺的地貌图，覆盖了 ∼12.5 km ²基于遥感分析和地貌调查的 Bistra 山（北马其顿）上部。特别关注冰川和冰缘地貌的描述、单个冰川形状的重建和平衡线高度 (ELA) 值的计算。调查结果和重建的 ELA 表明发生了三个冰期，导致了正面和侧面冰碛的形成。通过将这些 ELA 与其他巴尔干山脉的 ELA 进行比较，这些阶段的年龄初步归因于晚更新世。该地图是旨在重建该地区气候变化与地貌响应之间关系的更广泛项目的第一步。