Sentences with phrase «as subglacial»

It is driven by poorly understood processes occurring at the ice - ocean interface, such as subglacial discharge into the ocean, turbulent plume dynamics, submarine melting, and iceberg calving.

Not exact matches

Their analysis, recently published in Geology, reveals a subglacial lake covering as much as 1,250 square kilometers (making it the second - largest subglacial lake in Antarctica by length after Lake Vostok) and a series of canyons that extend a kilometer deep and 1,100 kilometers across.

Now a team of geologists has scoured that area to reveal a massive subglacial lake and a series of canyons, one of which — more than twice as long as the Grand Canyon — could rank as Earth's largest.

Today, the team announced that they have the first evidence of microbial life in subglacial Antarctic waters, shown here just as the team's underwater camera reached the bottom of the lake.

But, as the thickness of the ice over the volcano (between 100 and 400 meters) and the volume of lava are both unknown, it's also unclear whether an eruption will break through the ice, or whether it will remain subglacial.

«Scientists discover first super salty subglacial lakes in Canadian Arctic: Super salty water beneath ice could serve as a terrestrial analogue for a habitat for life on other planets.»

As many surface melt - water lakes form each summer around the Greenland ice sheet, the possibility exists that similar subglacial lakes may be found elsewhere in Greenland.

As yet, no one has touched the waters of a subglacial lake with so much as a drill bit, but a Russian group that has been coring ice over Lake Vostok to get ancient climate records is coming closAs yet, no one has touched the waters of a subglacial lake with so much as a drill bit, but a Russian group that has been coring ice over Lake Vostok to get ancient climate records is coming closas a drill bit, but a Russian group that has been coring ice over Lake Vostok to get ancient climate records is coming close.

Exploring subglacial lakes could help answer many important questions: whether, for example, global warming might accelerate as Antarctica's ice recedes.

The subglacial environment is often described as extreme.

Photojournalist Keith Heyward uses a dolly to film above a formation in the Dry Valleys known as the Labyrinth, a series of deep troughs and ridges that researchers believe was carved out in a massive subglacial flood roughly 12 million years ago.

What's left to figure out is whether this is happening with other subglacial lakes around the Greenland ice sheet, as well as whether and how to incorporate the findings into models that are aimed at gauging how much Greenland might change with the warming climate and how much water it could add to the rising seas.

The radar waves bounced off the rock beneath the ice; returning echoes yielded this contour map of peaks and valleys as well as hundreds of miles of interconnected subglacial lake systems.

While direct samples of water from subglacial Antarctic lakes have yet to be obtained, the lower 80m or so of the Vostok ice core represents lake water that progressively freezes onto the base as the ice sheet slowly traverses the lake.

Microorganisms dominate all other life everywhere scientists have looked, including the human body, the Earth's soils and sediments, the oceans and fresh waterways, the atmosphere and even extreme environments such as hydrothermal vents and subglacial lakes.

Through combining results across multiple disciplines, we will learn new information about our planet's past and gain knowledge on subglacial processes such as carbon cycling and water - ice dynamics.

I know that, such as East Antarctica, which ice sheet's thickness could reach several kilometers therefore huge pressure and geothermal flux results in melting, then the subglacial lakes and water channels.

Most methods rely on indirect methods of dating subglacial tills, such as dating organic remains above and below glacial sediments.

This current National Science Foundation - funded Whillans Ice Stream Subglacial Access Research Drilling (WISSARD) project included 12 co-principal investigators from as many institutions along with a host of graduate and doctoral candidate students.

The latest findings of microbial life flourishing in the extreme environment of subglacial Lake Whillans in Antarctica, which were detailed in the first part of this article, are further hinting at the possibility of life existing in a similar fashion as well in the mysterious, underground alien waters of Europa.

Methanogens are common on Earth in places devoid of oxygen, such as in the rumens of cows, and could easily have been scraped up by ice flowing over the swampy subglacial soil and incorporated into some of the bottom layers of ice.

But given the talent and accomplishment of RealClimate posters, and the breathtaking developments in climate science lately (the dynamics of subglacial lakes, for instance), sometimes it strikes me as a little sad that you have to devote so much energy to refuting the utter twaddle emitted by denialist nincompoops, time and time again.

As long as people are bringing up the issue of subglacial volcanism there have been some papers purporting that rapid deglaciation can trigger volcanic eruptionAs long as people are bringing up the issue of subglacial volcanism there have been some papers purporting that rapid deglaciation can trigger volcanic eruptionas people are bringing up the issue of subglacial volcanism there have been some papers purporting that rapid deglaciation can trigger volcanic eruptions.

Hank Roberts, my mistake, I should have said «may be contributing», as per the Corr paper, «high geothermal heat flux... may be delivering subglacial water to Pine Island Glacier».

But dive below the West Antarctic Ice Sheet, and you'll find fire as well, in the form of subglacial volcanoes.

The piece about the Greenland ice sheet had not a peep about the effect of geothermal activity under the ice sheet and the basal melting that is occurring driving the vigorous subglacial hydrology as outlined in Rogozhina et al, 2016.

The ice sheet provides perfect conditions for subglacial gas hydrate formation, in the past as well as today.