Not exact matches
Excellent Q1
Drilling Results;
Longer - Term Results a Potential Catalyst: Prairie Provident recently completed a six - well
drill program in its Princess and Wheatland (Wayne)
core areas.
Researchers established the first camp here in 1989, at the start of an international effort that
drilled the 3,053 - meter -
long Greenland Ice Sheet Project - 2 ice
core, retrieving a record of climate over the previous 110,000 years.
The researchers
drilled long,
core - shaped sediment samples from two boreholes at Polecat Bench in northern Wyoming's Bighorn Basin, east of Cody and just north of Powell.
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.
In 1998, while boring near the bottom of that
long core, expecting to hit bedrock, the
drillers brought up ice with crystals that were startlingly different from those usually found in glacial ice.
Longer cores have to be
drilled piece by piece, with the
drill returning to the surface with each one.
However,
drilling deeper to collect a
longer ice
core does not necessarily mean finding a
core that extends further into the past.
Crucially, they also found that an ice
core extending that far into the past should be between 2.4 and 3 - km
long, shorter than the 800,000 - year - old
core drilled in the previous expedition.
In my opinion, the absence of
drill core at the Bre - X exploration site, if publicly known, would have alarmed investors
long prior to the final demise.
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.
Essentially a sharpened pipe rotating on a
long, loose cable, the
drill pulled up
cores of ice from which Alley and others would glean climate information.
an ice
core on the Antarctic Plateau as part of a
long - term European ice
core drilling collaboration.
I'm the lead author on the paper but the author list is rightfully
long; a lot of people have been involved in
drilling and analyzing
cores all across Antarctica.
Ice
cores have been
drilled for a
long time.
Essentially a sharpened pipe rotating on a
long, loose cable, the
drill pulled up
cores of ice from which Alley and others would glean climate information.
The tree - ring data match other information about
long - term climate change, like the data from ice
cores drilled out of ancient glaciers.
Tree rings, coral skeletons, and glacial ice
cores (Figure 3) are proxies for annual temperature records, while boreholes (holes
drilled deep into Earth's crust) can show temperature shifts over
longer periods of time.
A very good example of Antarctic monitoring of global warming is an ice
core two kilometres
long and equivalent to 150,000 - year record of warmth, cold and warmth, that a French - Soviet
drilling team at Vostok Station in central Antarctica produced in 1985.
A custom - built stainless steel
core barrel 6 cm in diameter and 50 cm
long fitted with a brass
drill head containing carbide teeth was used, fashioned after a design developed by the Australian Institute for Marine Science.
The new evidence lies within 1,500 - foot -
long cores of rock that Kent and his coauthors
drilled from a butte in Arizona's Petrified Forest National Park in 2013, plus earlier deep
cores from suburban New York and New Jersey.
A Danish group headed by Willi Dansgaard
drilled a
long core of ice at Camp Century, Greenland in cooperation with Americans led by Chester Langway, Jr..
(28) + The emerging picture of severe instability was reinforced by studies of
cores drilled from the Greenland and Antarctic ice caps, and by deep - sea
cores that covered much
longer times.
The first
long core (411m), using a
drill developed by B. Lyle Hansen, was extracted at another site in Greenland in 1956: Dansgaard et al. (1973); for brief history and references, see also Langway et al. (1985); Levenson (1989) pp. 40 - 41; for a firsthand account, Alley (2000).
As part of the Dead Sea Deep
Drill Core Project, Goldstein and other colleagues
drilled deep below the lakebed of the Dead Sea in 2010 and 2011 to pull up more than 1,300 feet (400 meters) of sediment in a
long column — a record of sediment deposits spanning 200,000 years.