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20,000 years before our time
Ice Core-Drilling in Antarctic thousand meters deep now
At Kohnen-Station of Alfred-Wegener-Institut for Polar and Marine Research scientists unearthed an ice core from a depth of one thousand meters on 22nd january 2003. This ice is about 20,000 years old and contains information about the last glacial maximum. To date this, an ash layer produced by a prehistoric volcano 14,000 years ago, has been helpful. It was found in a depth of 802 meters, and was also found and dated at the Japanese Station Dome Fuji. Thus it could work as a milestone. The 24…
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At Kohnen-Station of Alfred-Wegener-Institut for Polar and Marine Research scientists unearthed an ice core from a depth of one thousand meters on 22nd january 2003. This ice is about 20,000 years old and contains information about the last glacial maximum. To date this, an ash layer produced by a prehistoric volcano 14,000 years ago, has been helpful. It was found in a depth of 802 meters, and was also found and dated at the Japanese Station Dome Fuji. Thus it could work as a milestone. The 24…
Earth's position in relation to the sun influences the origin and intensity of precipitation
Understanding the causes of changing precipitation and humidity levels in the Earth's past is important for understanding how future changes in the Earth's hydroclimate might affect it. A research team involving the Alfred Wegener Institute has now for the first time analyzed around 50,000 years of hydroclimate in the mid-latitudes of the south-east Pacific using marine sediment cores. The most important result: natural fluctuations in the Earth's orbital parameters have a decisive influence. The study was recently published in the scientific journal…
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