sentences:  It appears to have retreated significantly during the early Holocene warm period, followed by advancements 6,300, 5,400, 4,600, 4,100, 3,100, 2,400, 1,500, 800 and 600 years ago.The timing of expansions corresponded with cool summer temperatures, generally moist conditions and increased precipitation.Minimal geologic studies have been conducted at the Franklin Glacier Complex and its geology is therefore poorly known.