西伯利亚扇区

O. Gladysheva, A. Yastrebov
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引用次数: 3

摘要

在20世纪末东西伯利亚的航拍照片中发现了地球表面不同寻常的浮雕。这些浮雕由几十条(最多数百条)条纹组成,这些条纹是由于植被和地面表层的破坏而形成的。条纹结构扩展,大小从6公里到≥20公里不等,宽度达数公里。每条(地面划痕)粗估宽度不超过50m,长度≥500m。条纹从浮雕的一个边缘开始,以间隔延伸到另一个边缘,从中轴线对称地略微发散。经确定,这些地形起伏与土壤运动(雪崩、泥石流)或气流影响(飓风、风暴、龙卷风)无关。从地理上看,这些条纹结构位于通古斯大灾难震中周围半径770公里的圆圈内。
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Siberian Fan Reliefs
Unusual reliefs on the Earth’s surface were found in aerial photographs of Eastern Siberia in the late 20th century. These reliefs consist of several tens (up to hundreds) of stripes that have arisen as a result of the destruction of vegetation and the surface layer of the ground. Structures of stripes are extended, ranging in size from 6 km to ≥20 km, with a width of several kilometers. Every strip (scratch on the ground) is roughly estimated to be up to 50 m wide and ≥500 m long. The stripes start from one edge of the relief and stretch at inter-vals to the other, slightly diverging symmetrically from the central axis. It was determined that these reliefs are not associated with the movement of soil (avalanches, mudflows) or with the impact of air currents (hurricanes, storm, tornado). Geographically, these struc-tures of stripes are located within a circle with a radius of 770 km, described around the epicenter of the Tunguska catastrophe.
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