Tropical climate changes at millennial and orbital timescales on the Bolivian Altiplano

  title={Tropical climate changes at millennial and orbital timescales on the Bolivian Altiplano},
  author={P. A. Baker and C. Rigsby and Geoffrey O. Seltzer and S. Fritz and T. Lowenstein and Niklas P. Bacher and Carlos Veliz},
Tropical South America is one of the three main centres of the global, zonal overturning circulation of the equatorial atmosphere (generally termed the ‘Walker’ circulation). Although this area plays a key role in global climate cycles, little is known about South American climate history. Here we describe sediment cores and down-hole logging results of deep drilling in the Salar de Uyuni, on the Bolivian Altiplano, located in the tropical Andes. We demonstrate that during the past 50,000 years… Expand
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