Lidar-Based Detection and Interpretation of Glaciotectonic Features of the Morainic Topography of Finland

Figure 15

Morphologically defined glaciotectonic (GT) hummocky moraine with fan-like hollows in low longitudinal bedrock depression between smooth drumlin (DR) fields. Venetmäki, Pieksämäki. One fan-like fragment with ice flow direction marked. Fragmentary hummocks and fan edges are about 2–15 m high varying the size and shape significantly. Steepness of the slope may be, for example, 22°. The valley with irregular surface features lies about 20–30 m lower in level than drumlin terrain. (Map sheets N4433C, E; © National Land Survey).