Polygonal Terrain Types

Polygonal Terrain Types

Fig. 2. Examples of identified terrain types. Arrows indicate the illumination direction in each image. (A) Example of Type 1 terrain with mounds and intervening wide gentle troughs. (B) Type 1 terrain with albedo pattern of roughly same dimensions as in 2A. (C) Type 2a terrain with small fracture polygons. Note the hummocky Type 1 base pattern, with concentrations of boulders at the tops of very shallow mounds. (D) Sketch map of 2C, with fractures in black and boulder/rubble piles in white. (E) Type 2b terrain with small Subtype 2a and wider Subtype 2b fractures. Note that the Subtype 2b pattern has roughly similar dimensions as the Type 1 patterns in previous images. (F) Sketch map of 2E, with same color coding as in 2D. Image and caption provided by Dr. Jarmo Korteniemi

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