For example, to obtain temperature records from tree rings,
scientists drill cores into several trees that are growing in a region.
For the South Pole Ice Core project, in which
scientists drilled a core from 2014 to 2016 and continue the research today, Casey and her NASA colleagues helped analyze satellite, airborne and field data to select a place to drill the ice core.
Not exact matches
The
drill hole intersected a thick repetitive sequence of mafic and felsic sediments which showed no major structural deformation, a potential host for gold mineralisation, with geochemical analysis revealing alteration and mineralisation based on micro analysis of the
cores by world class
scientists from CODES in Tasmania.
Australian
scientists have welcomed the success of a five - year Greenland ice
core drilling project that is expected to reveal a record of more than 130 000 years and provide an insight into future global climate.
Their
scientists flew more than 250,000 kilometres across much of West Antarctica — including the areas draining to the Ross and Ronne ice shelves — and part of East Antarctica, including the famous ice -
core -
drilling sites Vostok and Dome C.
Scientists drilling ice
cores out of Greenland have found lead from fly ash, a byproduct of coal combustion, dating back to the era.
Scientists spent a month in Denali National Park in 2013
drilling ice
cores from the summit plateau of Mt. Hunter.
Using sediment
cores, long cylinders
drilled into the marsh floor that offer
scientists a look back through time, they were able to reconstruct sea - level changes since 1788.
To investigate the climate changes of the past, the
scientists are studying
drill cores from the eternal ice.
Although
scientists have analysed gases from tiny bubbles trapped in ice
cores drilled in polar ice caps, there are doubts about how closely the composition of the bubbles matches that of the atmosphere at the time they were trapped (see New
Scientist, Science, 22 August).
Lonnie Thompson, an earth
scientist at The Ohio State University's Byrd Polar Research Center who also is not part of the project and has been
drilling ice
cores on the world's highest mountain ranges for 38 years.
In 1959, the U.S. Army Corps of Engineers built the subterranean city under the guise of conducting polar research — and
scientists there did
drill the first ice
core ever used to study climate.
After
drilling ice
core containing thousands of years of accumulated caribou dung (shown above),
scientists recovered the complete genome of a DNA virus and the partial genome of an RNA virus from frozen feces dated to 700 years old, they report online today in the Proceedings of the National Academy of Sciences.
While a team of Russian
scientists were
drilling ice
core samples from their Vostok base in Antarctica, new satellite imagery revealed the outline of a lake the size of New Jersey buried two miles underneath the ice.
Previous research by Box using ice
cores — long cylinders
drilled out of the ice sheet that let
scientists sample hundreds of years of ice layers — showed that in the past, snowfall has increased over the ice sheet as temperatures have risen.
A plan to
drill to the centre of the Earth and detonate some nukes to restart the
core spinning again is hatched, and a very Freudian high - tech
drilling machine piloted by a group of
scientists is launched.
Last month, in an excellent piece of research (Sigl et al., 2015) by a collaboration including Earth
scientists, dendrochonologists, and historians, the chronology of the Greenland North Eemian Ice
Drilling core (NEEM) has been reassessed and re-dated, confirming that such an offset does indeed exist in the GICC05 timescale below AD 1000.
A team of
scientists will
drill into the
core of the ice in Eastern Antarctica.
The sediment retrieved during the
drilling operation provided the
scientists with a snapshot of the «complete 3.6 million year record» of the lake, chronicled in pollen and other climate imprints, or proxies, trapped in the sediment
core.
To collect a record of the last 100 or so years, the
scientists donned scuba gear and
drilled cores from living boulder corals.
In the paleoceanography and paleoclimatology communities, however,
scientists generally store their physical samples in their own facilities, unless they are affiliated with international
core drilling programs, which maintain centralized archives.
The
scientists failed to notice that most
cores drilled from the seabed could not in fact record a abrupt change.
We can also look to the past, which is what a group of
scientists including Scripps Institution of Oceanography, UC San Diego geoscientist Jeff Severinghaus have done, by
drilling a 2.5 - kilometer (1.6 - mile) ice
core from some of the oldest ice in Greenland.