1. The Chacabaya glacial advance may be contemporaneous with Lake Tauca. 2. There are minor glacial advances recorded on the mountain over the past 6, 000 years. 3. With the end of the last glacial advance , the Columbia settled into its present course. 4. Such glacial advances may have been preceded by the humid episodes which formed Lake Tauca. 5. These annual glacial advances and recessions cause parallel ridges to form a few metres apart. 6. These cycles within cycles predict that during maximum glacial advances , winter and summer temperatures are lower. 7. He was the originator of the undermelt theory in which British glacial deposits resulted from a single glacial advance . 8. The first of these occurred between 6950-4500 kya when there was a major glacial advance in the Teleki valley. 9. Two minor glacial advances , over 12, 000 BP and about 11, 000 BP, appear to coincide with Lake Tauca. 10. The first and most severe of the known glacial advances in the area was caused by the Buffalo glaciation.
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