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- Six-million-year-old Antarctic ice offers glimpse into warmer era of . . .
A team of scientists from several U S institutions, including the University of Minnesota, discovered six million year old ice in Antarctica — the oldest dated ice on the planet
- Ice core - Wikipedia
Cores are drilled with hand augers (for shallow holes) or powered drills; they can reach depths of over two miles (3 2 km), and contain ice up to 800,000 years old The physical properties of the ice and of material trapped in it can be used to reconstruct the climate over the age range of the core
- Scientists Drill 1. 7 Miles Into Antarctic Ice, Revealing 1. 2 Million . . .
Scientists have drilled 1 7 miles deep into Antarctica, pulling up an ice core sample that dates back at least 1 2 million years They expect the sample to offer new insights into the evolution
- What do ice cores reveal about the past? - National Snow and Ice Data . . .
Combined with other paleoclimate records such as tree rings and fossils, ice cores enable scientists to reconstruct past worlds By preserving evidence of ancient temperatures and greenhouse gases, ice cores show scientists how much our planet has changed
- Antarctic scientists drill 2 miles down to reach 1. 2 million-year-old ice
An international team of scientists say they’ve successfully drilled one of the oldest ice cores yet, penetrating nearly 2 miles to Antarctic bedrock to reach ice that's at least 1 2 million
- Core questions: An introduction to ice cores - Science@NASA
The samples they collect from the ice, called ice cores, hold a record of what our planet was like hundreds of thousands of years ago But where do ice cores come from, and what do they tell us about climate change?
- Antarctica’s Secrets: What Ancient Ice Cores Reveal
Ice cores—cylindrical samples drilled from deep within Antarctica’s ice sheets—are windows into a world long gone Trapped within them are air bubbles, tiny pockets of ancient atmosphere, carrying whispers of climates that flourished and vanished
- Ancient Antarctic ice cores unlock climate history
A shipment of ancient ice has arrived at the British Antarctic Survey in Cambridge, following its extraction from deep under East Antarctica These ice cores are a bit like tree-rings: they contain a snapshot of Earth’s climatic past, documenting the temperatures and amounts of precipitation
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