Lost lake was a pit stop on our migrafion out of Africa

• Autores: Jeff Hecht
• Localización: New scientist, ISSN 0262-4079, Nº. 2953, 2014, pág. 11
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • A giant, long-vanished lake along the White Nile may have been a vital way station for early humans leaving Africa. The 45,000-sq-km lake would be one of the world's largest lakes if it existed today, and it was in the right place at the right time for at least one of two key migrations. Geologists had seen traces of an ancient lake in the arid region south of Khartoum in Sudan, but did not know when it dried up. So Martin Williams of the University of Adelaide in Australia and Tim Barrows of the University of Exeter, UK, collected samples from former lake-shore deposits, and dated them to about 109,000 years ago. They traced the lost lake along 650 km of the White Nile, one of two main tributaries to the Nile.