Comments on: Candice Hansen describes spidery channels on Mars http://earthsky.org/space/spiders-found-on-planet-mars A Clear Voice for Science Fri, 25 May 2012 03:38:58 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: Neil Hodgson http://earthsky.org/space/spiders-found-on-planet-mars/comment-page-1#comment-370892 Neil Hodgson Tue, 04 Jan 2011 15:53:03 +0000 http://208.96.63.114/?p=3865#comment-370892 Candice, Rather than gas vents (which as you say don't look like this on earth) or erosional vent/channels (again - why would they develop radially? - surely a preferential direction would develope) I wonder if these features may just be the CO2 equivalents of Hydrolaccolyths (- or Pingos). The fracture system looks like the deformation you see through radial extension - formation of a dome. Geometrically like the fractures in sediments underlain by a salt dome. The formation of Ice will do that on earth - there are lots of pingos to look at for analogues - and polygonal pattern formation? Just a thought. http://en.wikipedia.org/wiki/Pingo Candice, Rather than gas vents (which as you say don’t look like this on earth) or erosional vent/channels (again – why would they develop radially? – surely a preferential direction would develope) I wonder if these features may just be the CO2 equivalents of Hydrolaccolyths (- or Pingos). The fracture system looks like the deformation you see through radial extension – formation of a dome. Geometrically like the fractures in sediments underlain by a salt dome. The formation of Ice will do that on earth – there are lots of pingos to look at for analogues – and polygonal pattern formation? Just a thought.

http://en.wikipedia.org/wiki/Pingo

]]> By: loone http://earthsky.org/space/spiders-found-on-planet-mars/comment-page-1#comment-4358 loone Tue, 05 Feb 2008 12:59:24 +0000 http://208.96.63.114/?p=3865#comment-4358 <p>is this an underground water sources expanding as ice to the surface causing the fracture of the surface in the spider paterns?</p> is this an underground water sources expanding as ice to the surface causing the fracture of the surface in the spider paterns?

]]> By: vicky http://earthsky.org/space/spiders-found-on-planet-mars/comment-page-1#comment-4321 vicky Sun, 27 Jan 2008 08:35:45 +0000 http://208.96.63.114/?p=3865#comment-4321 <p>i dont think so its a spider.the shape is not like that</p> i dont think so its a spider.the shape is not like that

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