Sentences with phrase «from pingo»

Methane release from pingo - like features across the South Kara Sea shelf, an area of thawing offshore permafrost

Not exact matches

An early study suggested that these pingos formed on land during the glacial period, and are therefore relics from the ice age, just like the Arctic subsea permafrost.

That's for pingos underneath the ocean, where slow warming has thawed the seabed — which can collapse into a «moat» — but the material (brown, red arrows) being forced up from below is dense mud and rock and clathrate and ice.

Second, given that the exposed ground shows the depth of the extant permafrost cap, it seems clear that the pingo's ice did not melt from the top down, as the surface material remained frozen (gas - tight) before finally being blown out.

With the impracticality of massed reindeer - peeing playing a role (from aerial images the site is clearly on a regular grazing route) I'm left wondering just what gas presssure would be needed for clathrates to form after a notional influx of hot geological methane melted out a pingo, with sufficient surface warming penetration then causing their destabilization.

«How could a melting pingo eject spoil outwards from the crater?»