Stable carbon isotope ratio analyses on trace methane
from ice samples.
In the lab, ancient bacteria
from ice samples 420,000 years old, retrieved from more than 2 miles (3 km) inside the ice sheet, have quickly shown signs of life.
Not exact matches
You could have
sampled food and drink, in fact,
from more than 30 high - end restaurants and vendors, all served
from one - of - a-kind stalls each more whimsical than the last — one shaped like Pegasus, another made entirely of
ice.
for example... you can go back in
ice core
samples as far as 800,000 years, and still locked in the
ice is a tiny amount of the atmoshpere
from that time, telliing us volumes of information.
On top of that geologists have shown
from seabed core
samples and
ice core
samples that there was no global flood.
The snacks were divided into subgroups based on product type (fruit drink snacks, licorice, non-dairy
ices,
ice creams and savories) and their caloric content per portion was compared with the caloric content of reference products derived
from the Dutch Food Composition Database [13], using one -
sample t - tests.
Byrne Dairy representatives will be on hand to offer free
samples of
ice cream and quiz the public on dairy trivia
from noon to 2 p.m.
Today, over 300 million people visit Baskin - Robbins shops each year to
sample ice cream
from the brand's library of more than 1,000 flavor creations, as well as enjoy its full array of frozen treats including
ice cream cakes, frozen beverages and sundaes.
Local tastemakers were treated to
samples from the innovative cocktail program and selection of gourmet bites as well as a first - of - its - kind alcohol - infused soft serve
ice cream.
Of course, we also
sampled some amazing
ice cream
from Rococo, an adorable little
ice cream shop (ranked 6th in the nation by tripadvisor!)
The smaller
samples aregreat for little hands to enjoy snacks such as fresh fruit fromDominick's, pizza
from Connie's and Italian
ice from TuttoItaliano.
Popular food trucks like Garbo's Lobster Truck and Curcuma will be on hand if you need a snack after all that shopping, and don't miss
sampling some tasty flavors
from Lick Honest
Ice Creams.
And Libby himself, when he analyzed wood
samples from trees once buried beneath glacial
ice, documented that North America's last Ice Age ended approximately 11,000 years ago — not 25,000 years ago as previously believ
ice, documented that North America's last
Ice Age ended approximately 11,000 years ago — not 25,000 years ago as previously believ
Ice Age ended approximately 11,000 years ago — not 25,000 years ago as previously believed.
An
ice core is a core
sample from the accumulation of snow and
ice over many years that have recrystallized and have trapped air bubbles
from previous time periods.
Lancaster University scientists worked with colleagues
from China and Germany to collect and analyse
samples from ice cores which had been laid down over 30 years, to show how residues of Perfluoroalkyl substances (PFASs) in the environment have changed over time.
Although a British team was unsuccessful in its quest to penetrate Lake Ellsworth, a group of Russian scientists successfully retrieved
samples from Lake Vostok, thousands of kilometers away on the Eastern Antarctic
Ice Sheet.
Ice core
samples from Quelccaya are especially unique because they can be annually dated, Thompson says.
In February 2015, a team of researchers, including Thompson, published a paper in the Proceedings of the National Academy of Sciences about new findings
from the Quelccaya
ice core
samples.
Samples from Lake Whillans, hidden under
ice, contain thousands of microbes and hint at vast ecosystems yet to be discovered
Domack withdraws the
sample from trap Number 4, and points to the
ice cream sundae layering of dark and light browns in the clear plastic cylinder.
Even offered Terje
samples from Vassfjorden and Terje went completely bonkers saying the
ice was the best sounding in 7 years!
CAESAR's goal will be to gather at least 100 grams of
ice and rock
from the comet's surface, then to return the
sample to Earth in a sealed, thermally stabilized capsule in 2038.
The team, led by Dr Kira Rehfeld and Dr Thomas Laepple, compared the Greenland data with that
from sediments collected in several ocean regions around the globe, as well as
from ice - core
samples gathered in the Antarctic.
The researchers determined
from the isotope ratio that the Taylor Glacier
samples were 120,000 years old, and validated the estimate by comparing the results to well - dated
ice core measurements of atmospheric methane and oxygen
from that same period.
Since the data the team collected only came
from samples off the east side of Greenland, their results don't provide a definitive picture of the whole Greenland
ice sheet.
The researchers took
samples from multiple surface
ice locations on the Greenland
ice sheet, which they analysed using metagenomic data and binned genomes.
The other study in Nature — led by Joerg Schaefer of Lamont - Doherty Earth Observatory and Columbia University, and colleagues — looked at a small
sample of bedrock
from one location beneath the middle of the existing
ice sheet and came to what appears to be a different conclusion: Greenland was nearly
ice - free for at least 280,000 years during the middle Pleistocene — about 1.1 million years ago.
His Russian scientific team had finally accomplished its elusive goal: retrieving the purest
sample yet
from Lake Vostok, an Antarctic body of water that has likely been locked beneath thousands of feet of
ice for up to 15 million years.
Enkelmann appreciates the challenge of collecting
samples here because this range has the highest peaks of any coastal mountain range and is only 20 kilometers
from the Pacific Ocean, but she points out that it is a tough area to study because of the big
ice sheets.
Mackay estimated the
ice could have been as old as 800,000 years, making it roughly the same age as the oldest
ice ever core -
sampled from anywhere in the world.
A drill finally penetrated through the
ice to Vostok's waters in February 2012, and
samples were obtained
from water that froze on the drill.
A team of scientists melted five
samples of
ice from Antarctica in hopes of reviving the oldest known frozen bacteria — millions of years older than any previously brought to life.
If a future orbiter could collect some material
from a plume, that would allow us to
sample the seas without the difficult task of landing and drilling into the
ice, says Phillips: «If there are life forms, they would be in the liquid layer.
Core
samples from deeper in the Lake Towuti sediment will show whether this drying evident during the last
ice age also happened in previous
ice ages.
For instance, researchers may have a limited time to survey coastal archaeological sites threatened by erosion, to
sample melting
ice sheets holding clues to past climates, and to document so - called thermokarst lakes, which are formed by meltwater
from permafrost.
Last month the team announced it had successfully retrieved a core of
ice from the borehole without the contamination that had plagued their earlier
samples.
The frozen tissues warmed up by over 120 oC (almost 250 oF) in one minute — ushering the
samples safely
from vitrification to a thawed state before
ice crystals could form.
The biggest stumbling block to preserving larger
samples comes
from tiny
ice crystals that tend to form right around the transition point to or
from a vitrified state.
«We also found the chemical anomaly in
ice from two other Antarctic
ice cores including archived
samples from the Byrd Core available
from the University of Copenhagen and
ice from Taylor Glacier in the Antarctic Dry Valleys,» said Nathan Chellman, a graduate student working in McConnell's laboratory.
Levels of oxygen 18 in
ice core
samples from the 1990s were more elevated than for any other time in the last 200 years, but were very similar to levels reached during some earlier decades.
Highlights included field trips to the
ice edge and Bratina Island, an upside - down piece of seafloor now frozen in the
ice sheet, where we collected
samples from hypersaline ponds filled with all domains of life: archaea, bacteria, and eukaryota.
The researchers studied water
samples taken during cruises by Chinese
ice breaker XueLong, (meaning «snow dragon») in summer 2008 and 2010
from the upper ocean of the Arctic's marginal seas to the basins as far north as 88 degrees latitude, just below the North Pole, as well as data
from three other cruises.
Sampling 7,000 - year - old
ice cores as well as snowpack dating
from 1969 through the mid-1990s, Barbante's team found that concentrations of the metals had risen almost sevenfold since the mid-1970s, when catalytic converters first came into widespread use.
By taking
ice samples for the last five winters and analyzing for the chlorophyll produced by algae and photosynthetic bacteria, Twiss and his team have determined that
from November to April the Lake experiences great primary productivity, more so than in spring or summer.
Hawkings and his collaborators spent three months in 2012 and 2013 gathering water
samples and measuring the flow of water
from the 600 - square - kilometer (230 - square - mile) Leverett Glacier and the smaller, 36 - square - kilometer (14 - square - mile) Kiattuut Sermiat Glacier in Greenland as part of a Natural Environment Research Council - funded project to understand how much phosphorus, in various forms, was escaping
from the
ice sheet over time and draining into the sea.
Surprise find The team's actual mission was to survey ocean currents near the Ross
Ice Shelf, a slab of ice extending more than 600 miles (970 kilometers) northward from the grounding zone of the West Antarctic Ice Sheet into the Ross Sea, to model the behavior of a drill string, a length of pipe extending to the seafloor which delivers drilling fluids and retrieves sediment sampl
Ice Shelf, a slab of
ice extending more than 600 miles (970 kilometers) northward from the grounding zone of the West Antarctic Ice Sheet into the Ross Sea, to model the behavior of a drill string, a length of pipe extending to the seafloor which delivers drilling fluids and retrieves sediment sampl
ice extending more than 600 miles (970 kilometers) northward
from the grounding zone of the West Antarctic
Ice Sheet into the Ross Sea, to model the behavior of a drill string, a length of pipe extending to the seafloor which delivers drilling fluids and retrieves sediment sampl
Ice Sheet into the Ross Sea, to model the behavior of a drill string, a length of pipe extending to the seafloor which delivers drilling fluids and retrieves sediment
samples.
Becker used a mass spectrometer to analyse the PAHs in several
samples of Antarctic
ice, including some
from the site where the meteorite was found.
If a probe could catch some material
from the plume, that would allow us to
sample the seas without the difficult task of landing and drilling into the
ice, says Cynthia Phillips at the SETI Institute in Mountain View, California.
Soil
samples were collected
from two coastal
ice - free sites in different regions of eastern Antarctica.
One evening, while drinking a whiskey on rocks chipped off an
ice core
sample, Lorius watched bubbles get liberated
from the
ice.