Sentences with phrase «drilling cores from»

They talk about permafrost soils evolving much more gas than could be accounted for by pore volume, drilling cores from 70 - 120 meters evolving in excess of 10 times the volume of gas accountable by pore space in the cores (page 1003).

The team were able to draw these conclusions by analysing new data from the chemical composition of the fossilised shells of sea surface and seafloor organisms from that period, taken from drilling cores from the ocean floor in the South Atlantic.

Peter Hochuli and Susanne Feist - Burkhardt from Paleontological Institute and Museum, University of Zürich, studied two drilling cores from Weiach and Leuggern, northern Switzerland, and found pollen grains that resemble fossil pollen from the earliest known flowering plants.

To investigate the climate changes of the past, the scientists are studying drill cores from the eternal ice.

Dr Ohneiser and colleagues examined 60 sedimentary drill cores from around the edge of Antarctica.

These indications were visible gas liberations from permafrost drill cores from depths less than 150 m when thawing in kerosene or warm water.

Has anyone yet talked up designing a Mars lander that would be able to drill a core from the polar ice cap, scan it and give us another data set?

To collect a record of the last 100 or so years, the scientists donned scuba gear and drilled cores from living boulder corals.

Researcher Margarita Marinova uses an auger to drill a core from the ice pack at University Valley in the McMurdo Dry Valleys, Antarctica.

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.

GOOD TIDINGS Ivanhoe reported excellent metallurgical results from tests conducted on drill core samples from the Kakula discovery

Drill core assays are pending but re-evaluation of five chip samples ranged from 0.72 grams per tonne to 7.03 g / t gold, averaging 3.7 g / t.

The comprehensive Sleeper data base now includes data from 162 core and 4,119 reverse circulation holes drilled by various operators.

The results discussed in this news release are from drill core samples obtained by PQ and HQ - size triple - tube diamond core drilling using two PMC400 man - portable drill rigs owned by SAMJ and operated by Sumiko Resources Exploration & Development Co., Ltd. (a wholly owned exploration services subsidiary of Sumitomo Metal Mining Co., Ltd.) The drilling program was fully supervised by SAMJ senior project geologists at the drilling site.

These cross sectional interpretations were created by re-logging 162 core holes and all the available chips from 499 reverse circulation holes drilled historically on the Sleeper Gold Project.

For instance, next year the ship JOIDES Resolution is scheduled to drill into the floor of the Pacific Ocean to extract rock cores that will span the period from about 53 million to 18 million years ago, a time of vast climate change.

The team members dove to the reef and took several cores from large, blobby dome - shaped Porites lobata corals using an underwater hydraulic drill powered by vegetable oil.

When researchers drill until they reach bedrock, they can count back the years in the core from the time of drilling.

Scientists drilling ice cores out of Greenland have found lead from fly ash, a byproduct of coal combustion, dating back to the era.

The analysis focuses on two ice cores drilled in 2013 from Mount Hunter in Alaska's Denali National Park, and an older ice core from Canada's Mount Logan.

Clow measured twice, once in 2011 and again in 2014, the temperature in a 3.4 - kilometer - deep (2 - mile - deep) borehole from which the West Antarctic Sheet Divide ice core had been drilled during an eight - year project that ended in 2011.

Scientists spent a month in Denali National Park in 2013 drilling ice cores from the summit plateau of Mt. Hunter.

The research team drilled two ice cores from a glacier on Mt. Hunter's summit plateau, 13,000 feet above sea level.

New sediment cores from an Antarctic research drilling program suggest that the southernmost continent has had a more dynamic history than previously suspected

Support for the idea came from ice cores arduously drilled from the Greenland ice sheet.

COVER Clouds pass over Kenya's Lake Magadi, where geologists are drilling a core to gather detailed climate data from the ancient lake bed.

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.

But much of what is known about this time period's climate comes from cores drilled deep in the ocean, Hren says.

They drilled 1 kilometer beneath the seafloor to extract a dozen dark - gray, clay - rich sample cores, each about the size of a soda can, from the fault.

The idea that sulfide - based photosynthesis was important during the Boring Billion is based on one limited data set from drill cores in northern Australia showing pigment molecules associated with sulfide - using bacteria.

This image shows a drill core of volcanic ash - hydrated lime mortar from the ancient port of Baiae in Pozzuloi Bay.

Producing a hole of about 50 centimetres — wider than those of either SUBGLACIOR or the UK RAID — it is the only rapid drill that can extract rocks from the bottom of a core.

More than a decade ago, the European Project for Ice Coring in Antarctica (EPICA) drilled the oldest existing core, which contains 800,000 - year - old ice, from an ice dome in East Antarctica known as Dome C.

Becker hadn't learned of Gorter's find until 2002, but when she called him he said he could also get her rock cores drilled from the top and the flank of the structure's uplifted bull's - eye.

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.

The new cores, drilled from Peru's Quelccaya Ice Cap, are special because most of their 1,800 - year history exists as clearly defined layers of light and dark: light from the accumulated snow of the wet season, and dark from the accumulated dust of the dry season.

They obtained it by drilling the oldest ice core ever, almost two miles into a godforsaken spot called Dome C — 600 miles inland from the Antarctic coast and a little more than 1,000 miles from the South Pole.

The Thompsons have drilled ice cores from glaciers atop the most remote areas of the planet — the Chinese Himalayas, the Tibetan Plateau, Kilimanjaro in Africa, and Papua Indonesia among others — to gauge Earth's past climate.

A series of sediment cores drilled from New York marshes confirm that mega droughts can grip the region: One spanned from 850 to 1350 A.D., Peteet said.

By studying iron extracted from cores drilled in rocks similar to these in Karijini National Park, Western Australia, UW - Madison researchers determined that half of the iron atoms had originated in shallow oceans after being processed by microbes 2.5 billion years ago.

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).

Stacked cores from the Chinle drilling project.

All day and night for the past week, core sections have emerged from the drill hole every few minutes.

Researchers studied drilled cores of a Roman harbor from Pozzuoli Bay near Naples, Italy.

Ice cores drilled from a glacier in a cave in Transylvania offer new evidence of how Europe's winter weather and climate patterns fluctuated during the last 10,000 years, known as the Holocene period.

Between 2004 and 2012, the study authors drilled 13 permafrost soil cores from various sites in Alaska, and measured the total amounts of mercury and carbon in each core.

European glaciologists drilling an ice core from the highest point of the Greenland ice sheet expect to reach bedrock, 3050 metres below, this week.

They also suggest that the amount of sediment carried to the mouth of the Amazon each year and then dumped offshore should increase over time — something actually seen in sediment cores drilled from that area.

Here, at the West Antarctic Ice Sheet Divide, Kendrick Taylor and his team of glaciologists drill into ancient ice to pull up ice cores, which trap bubbles of the atmosphere from the time that ice fell as snow.