Sentences with phrase «ocean drill cores»

Not exact matches

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 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.

Now, using two deep cores collected at two Ocean Drilling Program sites in the Southern Ocean, Jaccard and colleagues have reconstructed ocean records of productivity and vertical overturning reaching back a million years, through multiple glacial - interglacial cyOcean Drilling Program sites in the Southern Ocean, Jaccard and colleagues have reconstructed ocean records of productivity and vertical overturning reaching back a million years, through multiple glacial - interglacial cyOcean, Jaccard and colleagues have reconstructed ocean records of productivity and vertical overturning reaching back a million years, through multiple glacial - interglacial cyocean records of productivity and vertical overturning reaching back a million years, through multiple glacial - interglacial cycles.

A research project called the Arctic Coring Expedition linked to the Integrated Ocean Drilling Project headed north, hoping to find traces of this phenomenon to explain how it had happened.

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

This research is based on cores taken by the Ocean Drilling Programme (ODP).

For 2 months in 2013, the JOIDES Resolution, the ship for the International Ocean Discovery Program, drilled into the ocean floor sediments, retrieving cores of mud and rock that were then dOcean Discovery Program, drilled into the ocean floor sediments, retrieving cores of mud and rock that were then docean floor sediments, retrieving cores of mud and rock that were then dated.

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.

In 2014, they embarked on an ocean voyage to the central equatorial Pacific Ocean, where they drilled into the sediment bed and collected six cocean voyage to the central equatorial Pacific Ocean, where they drilled into the sediment bed and collected six cOcean, where they drilled into the sediment bed and collected six cores.

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.

Field observations of microbes recovered from deep drill cores, deep mines, and the ocean floor, coupled with laboratory investigations, reveal that microbial life can exist at conditions of extreme temperatures (to above 110ºC) and pressures (to > 10,000 atmospheres) previous thought impossible.

Recent evidence from ice - core drilling in Greenland indicates that similar fluctuations also occurred during the previous interglacial period, possibly due to rapid changes in ocean circulation.

Sediment cores the team collected by drilling in front of the current Cosgrove Ice Shelf indicate that relatively warm ocean waters dissolved the vast ice shelf and even some of the glacier behind it about 2000 years ago, they recently reported.

Loutre and Berger's 2002/3 papers were soon followed by another landmark paper by Lisieki and Raymo (Paleoceanography, 2005), an exhaustive look at 57 globally distributed deep Ocean Drilling Project (and other) cores (paywalled here: http://onlinelibrary.wiley.com/doi/10.1029/2004PA001071/full):

30; core Ocean Drilling Program 1090; 42.9 ° S, 8.9 ° E) and South Pacific (ref.

In recent years there have been many studies collecting data from ice cores in Greenland, sediments drilled from the ocean floor and from continental lakes, and so forth.

The researchers first matched this fossil record secured by the Integrated Ocean Drilling Program Expedition in the western tropical Pacific to existing records from bubbles trapped in Antarctic ice cores that stretch back 800,000 years, which preserve a precise record of past atmospheric composition.