Recent high‐latitude icy mantle in the northern plains of Mars: Characteristics and ages of emplacement

  title={Recent high‐latitude icy mantle in the northern plains of Mars: Characteristics and ages of emplacement},
  author={V. P. Kostama and Mikhail A. Kreslavsky and James W. Head},
  journal={Geophysical Research Letters},
Martian high‐latitude zones are covered with a smooth, layered ice‐rich mantle containing characteristic polygonal patterns. The mantle is especially uniform and homogeneous in the northern plains. We performed a survey of decameter‐scale mantle textures and circular features, including impact craters, in the northern lowlands down to 50°N latitude. Strongly altered and mantled craters of impact and non‐impact origin form a population of subtle circular features below the mantle. Pits of non… 

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