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we characterized an environment that is

2
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considered an analog

3
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for the waters that existed on mars

4
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during the late snowakia

5
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this environment is color peak springs

6
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which is one of many

7
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sailing and sulfurous spring systems

8
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located on axel heiberg island

9
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in the canadian high arctic looking at

10
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the chemistry

11
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using icp oes shown on the middle figure

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the ternary plot

13
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with the color peak chemistries

14
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indicated with the red circles and

15
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highlighted in the outer red circle

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compared to other analog environments on

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earth and thermochemically modelled

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waters derived

19
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from the chemistry of gale crater

20
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evaporates we found

21
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that at least in broad strokes and the

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most abundant elements

23
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color peak is a chemically appropriate

24
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analog environment

25
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then looking at the microbial community

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profile it was dominated

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by sulfur oxidizing bacteria please