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NERC Isotope Geosciences Laboratory |
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The summer 2011 edition of Planet Earth reports on a new survey of Lake Tana in Ethiopia (the source of the Blue Nile), the study shows that drought may have contributed to the demise of the Egyptian Old Kingdom, around 4 200 years ago.
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| © NERC 2012. This site is hosted by the British Geological Survey but responsibility for the content of the site lies with NERC Isotope Geosciences Laboratory (NIGL) not with the British Geological Survey. Questions, suggestions or comments regarding the contents of this site should be directed to Professor Randall R Parrish. | ||||||||