Glacial Lake Iroquois
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Glacial Lake Iroquois was a prehistoric proglacial lake that existed at the end of the last ice age approximately 13,000 years ago.
Stages of great lake development.
Younger Dryas
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The Younger Dryas was the final climatic phase of the Last Glacial Period that occurred from around 12,900 to 11,700 years Before Present. It is primarily known for the sudden or abrupt cooling in the
Glacial Lake Iroquois
…bypassing Early Lake Erie. The subsequent melting of the ice dam produced a sudden lowering of the lake to its present level, a potential trigger for the Younger Dryas episode. The resulting flood also created the Narrows in New York City, destroying the part of the moraine then uniting Staten Island and Brooklyn. Two…
Greenland ice cores since the Last Glacial Maximum show very low temperatures for the most part of the Younger Dryas, which then rise rapidly during the Holocene transition
Dryas octopetala is the indicator species for the period