巴尔干半岛岩石冰川的分布与特征

IF 1.4 4区地球科学 Q3 GEOGRAPHY, PHYSICAL

Geografiska Annaler Series A-Physical Geography Pub Date : 2020-10-01 DOI:10.1080/04353676.2020.1809905

Brigitte Magori, P. Urdea, A. Onaca, F. Ardelean

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引用次数: 3

摘要

关于巴尔干半岛岩石冰川的地貌特征、空间分布、成因和活动等方面的研究很少。在4个主要山区(Dinaric Alps, Rila and Pirin, North Macedonia, Pindus and Parnassus)共确定了224个岩石冰川，总面积16.74 km2。大多数岩石冰川被认为是废弃的，其锋面在1412米到2645米之间。在巴尔干半岛，岩石冰川不是均匀分布的，而是集中在几个山脉(如Pirin、Rila、Prokletije和Śar)。气候、高程、坡向和岩性是控制研究区岩石冰川分布的关键因素。绝大多数岩石冰川(73%)集中在北部象限。统计分析表明，岩石冰川的大小可以在一定程度上由贡献区域(范围和高程范围)、气候、坡向、海拔和坡度等特征来解释。皮林山区的岩石冰川密度和平均比面积明显高于其他山脉。根据古气候重建和气候记录，我们推断巴尔干半岛至少发育了三代岩石冰川。据推测，在里拉山脉和皮林山脉的年平均气温0°C等温线以上，完整的岩石冰川可能存在于今天的气候条件下。

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Distribution and characteristics of rock glaciers in the Balkan Peninsula

ABSTRACT Little information exists regarding the geomorphologic characteristics, spatial distribution and genesis and activity of rock glaciers in the Balkan Peninsula. A total of 224 rock glaciers were identified in four major mountainous regions (Dinaric Alps, Rila and Pirin, North Macedonia, Pindus and Parnassus), covering a total of 16.74 km2. Most of the rock glaciers are considered relict and have fronts between 1412 and 2645 m. In the Balkan Peninsula, rock glaciers are not uniformly distributed, but rather concentrate in several mountain ranges (e.g. Pirin, Rila, Prokletije and Śar). Climate, elevation, aspect and lithology are the key factors controlling rock glaciers’ distribution in the study area. The vast majority of the rock glaciers (73%) are concentrated in the northern quadrant. Statistical analysis revealed that the size of the rock glaciers can be explained to a certain degree by the characteristics of the contributing area (e.g. its extent and elevation range), climate, aspect, altitude and slope. In Pirin Mountains the density of the rock glaciers and the mean specific area are considerably higher than in the other mountain ranges. Based on palaeoclimate reconstructions and climatological records we infer that at least three generations of rock glaciers developed in the Balkan Peninsula. It is hypothesized that above the 0°C isotherm of mean annual air temperature in the Rila and Pirin Mountains, intact rock glaciers may survive to present-day climatic conditions.

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来源期刊

Geografiska Annaler Series A-Physical Geography 地学-地质学

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Geografiska Annaler: Series A, Physical Geography publishes original research in the field of Physical Geography with special emphasis on cold regions/high latitude, high altitude processes, landforms and environmental change, past, present and future. The journal primarily promotes dissemination of regular research by publishing research-based articles. The journal also publishes thematic issues where collections of articles around a specific themes are gathered. Such themes are determined by the Editors upon request. Finally the journal wishes to promote knowledge and understanding of topics in Physical Geography, their origin, development and current standing through invited review articles.