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. 2020 Dec 21;217(1):4. doi: 10.1007/s11214-020-00777-5

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© The Author(s) 2020

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Fig. 44 — Measured pit depths as a function of the number of laser shots for basalt (a) and dolomite (b) made with the EQM laser at a distance of 2.86 m in a simulated Mars atmosphere. Error bars show the standard deviations of three pits at each number of shots. Insets show the samples. Rows of pits can be seen in the dolomite sample (b)