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Lake Maumee
Lake Maumee was a proglacial lake and an ancestor of present-day Lake Erie. It formed about 14,000 Years Before Present (YBP) as the Huron-Erie Lobe of the Laurentide ice sheet retreated at the end of the Wisconsin glaciation. As water levels continued to rise the lake evolved into Lake Arkona and then Lake Whittlesey.
==Origin==
As the ice sheet retreated at the end of the last ice age, it left meltwater in a previously existing low-lying area that was the valley of an eastward-flowing river known as the Erigan River that probably emptied into the Atlantic Ocean following the route of today's Saint Lawrence River. Some geologists (''see M.C. Hansen, references below'') think that the Erigan could have been a downstream segment of the preglacial Teays River system. The glaciers destroyed or disturbed most of the preglacial drainage patterns and enlarged and deepened the Erigan basin.
Lake Maumee is the first of a series glacial lakes, which occupied the Erie basin. It was preceded by a few small, disconnected lakes which lay between the ice margin and the southern divide of Erie basin.〔Glacial Formations and Drainage Features Erie and Ohio Basins; Chapter XIV; The Glacial Lake Maumee; Frank Leverett; Government Printing Office; Washington, D.C.; 1902; pg 710-740〕 The name Lake Maumee was first applied in 1888 by G. R. Dryer, of the Indiana Geological Survey, in an official report on the geology of Allen County, Indiana.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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