Taken together, the data: 1) do not support the summer insolation hypothesis to explain
Holocene glacier fluctuations in southernmost Patagonia; 2) confirm paleobotanical evidence for a warm, dry early Holocene; and 3) suggest that some glaciers in the region reached extents comparable to those of the Little Ice Age shortly before 5.29 e5.05 ka.
The extended evidence is in the detailed work of a group of researchers at Dartmouth College, published in the journal Geology (see Justin S Stroup, Meredith A Kelly, Thomas V Lowell, Patrick J Applegate, & Jennifer A Howley, «Late
Holocene fluctuations of Qori Kalis outlet
glacier, Quelccaya Ice Cap, Peruvian Andes», Geology, 25 February 2014).