Abstract
Late-Holocene glacier variations on El Altar, Ecuador, have been reconstructed from proglacial lacustrine sediments. Variations in bulk density and organic content in sediment cores from Laguna Verde, are interpreted as representing a record of the Neoglacial activity of the Obsipo Glacier. Two sedimentological units of laminated silt and clay represent two late-Holocene episodes of glacier expansion, which probably occurred during the last millennium and tentatively suggest a double 'Little Ice Age' signal. Reconstructed equilibrium-line altitudes on the Obispo Glacier seem to reflect changes in both precipitation and temperature, and the glacial fluctuations documented on El Altar are consistent with other evidence of environmental change from northern South America.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
