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FIGURE 6: Block diagrams showing different types of heave features
associated with heaving bedrock (modified form Noe and Dodson, 1995).
(A) Near-symmetrical heave features formed by differential swelling and/or rebound of individual bedrock
layers, each having a different swell potential. This type of heaving results in straight-crested,
longitudinal uplift of the ground surface, oriented parallel to bedding strike.
(B) Strongly asymmetrical heave features formed by thrust-like, shear-slip movement along bedding
planes or fracture surfaces. The bedding-plane features are straight crested and are oriented parallel
to bedding strike, whereas the fracture-plane features have curvilinear crests and may not necessarily
be oriented parallel to bedding strike.
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