Comments on: Study: Mars’ meandering canyons formed under ice https://behindtheblack.com/behind-the-black/points-of-information/study-mars-meandering-canyons-formed-under-ice/ Wed, 05 Aug 2020 02:30:15 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Edward https://behindtheblack.com/behind-the-black/points-of-information/study-mars-meandering-canyons-formed-under-ice/#comment-1085896 Wed, 05 Aug 2020 02:30:15 +0000 https://behindtheblack.com/?p=68007#comment-1085896 Glaciers tend not to leave deltas, so, the delta that Perseverance will study may be lava after all?

https://behindtheblack.com/behind-the-black/essays-and-commentaries/perseverances-planned-journey-in-jezero-crater/

]]> By: LocalFluff https://behindtheblack.com/behind-the-black/points-of-information/study-mars-meandering-canyons-formed-under-ice/#comment-1085869 Tue, 04 Aug 2020 17:14:18 +0000 https://behindtheblack.com/?p=68007#comment-1085869 I grew up in east mid-Scandinavia. There bedrocks have been rounded by the moving ice as it retreated when it melted some 5,000 to 50,000 years ago. The granite bedrock was grinded by the kilometers of ice above, as it moved south and north depending on how the thickness balanced the ice sheet here and there. I suppose that such smooth bedrocks cannot be identified by MRO.
https://www.kristallin.de/striae/striae_eng.htm

Where I grew up, there was one formation with a lake view, that was formed perfectly as a sofa for kids! No sharpness of any rock in sight, and the ground seemingly impenetrable to man/child, as hard and even as it is at every point.

]]> By: Brad https://behindtheblack.com/behind-the-black/points-of-information/study-mars-meandering-canyons-formed-under-ice/#comment-1085839 Tue, 04 Aug 2020 05:52:20 +0000 https://behindtheblack.com/?p=68007#comment-1085839 That is very interesting.

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