Sentences with phrase «of ancient ice»

A discussion of the methods for determining the ages of ancient ice cores.

The researchers did find more than 4,000 bones of ancient ice - age animals during the last two decades.

The region is chock full of ancient ice balls.

Analysis of ancient ice and air bubbles trapped inside revealed the composition of the atmosphere and air temperature going back as far as 400,000 years.

The 1980s and 1990s brought proof (chiefly from studies of ancient ice) that the global climate could indeed shift, abruptly and catastrophically, within a century — perhaps even within a decade.

the calling - card of an ancient ice - age - an outcrop in Namibia of ancient (Proterozoic) glaciogenic sediments, overlain by a dolomitic «cap - carbonate» sequence of marine origin, deposited in warmer post-glacial conditions.

DEEP FREEZE: Petrenko holds a sample of ancient ice in his Ice Core Lab in Hutchison Hall.

Detailed ana / lysis of acient ice cores can be found in the paper: «Microbial Ana.lyses of Ancient Ice Core Sections from Greenland and Antarctica» — Caitlin Knowlton, Ram Veerapaneni, Tom D'Elia, and Scott O. Roger

The West Antarctic ice sheet, the smaller of the icy continent's two giant slabs of ancient ice, is moored to an archipelago of islands, many of them below sea level.

He notes that both studies have «some blurriness,» he says, in what they are able to resolve about short - term changes and the size of the ancient ice sheet.

Mixing in the crumbled bits of ancient ice, Mackay poured us all a glass, and we toasted the adventure.

The same is true of ancient ice crystals.

When you drop in a small fragment of ancient ice, it provides that seed: the water instantly organizes itself to mimic the prehistoric pattern.

From there they could control a fleet of robotic explorers and investigate the composition of ancient ice deposits in the forever - dark craters of the Aitken basin.

[1] Martian lava tubes could possibly trap volatiles such as water which is considered essential for life, and may also contain reservoirs of ancient ice since cold air can pool in lava tubes and temperatures remain stable.

The Younger Dryas and the sea of ancient ice.

In Denver, Colorado, we peer over Alley's shoulder at the National Ice Core Lab to see how records of temperature and atmospheric composition trapped inside chunks of ancient ice conclusively demonstrate that today's levels of CO2 are higher than at any time in the past 400,000 years, due largely to our burning of fossil fuels over the past several hundred years.

above: the calling - card of an ancient ice - age - an outcrop in Namibia of an ancient (Proterozoic) tillite of glacial origin, overlain by a dolomitic «cap - carbonate» sequence of marine origin, deposited in warmer post-glacial conditions.

It features some of the most dramatic and rapid climate shifts in Earth's history, as well as tenacious scientists braving the hostile ice and snows of Greenland and Antarctica for years on end to bring home that most precious material: kilometre - long cores of ancient ice, dating back over a hundred thousand years.