earth hummock

earth hummock

[′ərth ‚həm·ək]
(geology)
A small, dome-shaped uplift of soil caused by the pressure of groundwater. Also known as earth mound.
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Geo-electrical soundings reveal the existence of permafrost in rock glaciers from Retezat Mountains, the depth of active layer, typical internal structure of periglacial deposits and the freezing regime of the sediments inside earth hummocks. The application of ERT investigations proves to be a useful geophysical method to detect the contrast between unfrozen sediments and ground ice from periglacial environments subsurface.
For the past four years, our team has applied ERT in order to investigate the internal structure of periglacial landforms in Southern Carpathians, i.e.: rock glaciers, scree slopes, patterned ground, earth hummocks, debris cones, solifluction lobes and solifluction terraces.
For the aims of this paper, we focused our investigations on Ana rock glacier (Retezat Mts.), Muntele Mic field of earth hummocks (Tarcu Mrs.) and Paltina solifluction lobe (Fagaras Mts.) (Fig.