Kame deltas provide evidence for a new glacial lake and suggest early glacial retreat from central Lower Michigan, USA

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• 作者：Randall J. Schaetzl^a ; ^{soils@msu.edu} ; Kenneth Lepper^b ; Sarah E. Thomas^a ; Leslie Grove^a ; Emma Treiber^a ; Alison Farmer^a ; Austin Fillmore^a ; Jordan Lee^a ; Bethany Dickerson^a ; Kayleigh Alme^b
• 关键词：Kame deltas ; Optically stimulated luminescence (OSL) dating ; Glacial Lake Roscommon ; LGM
• 刊名：Geomorphology
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：280
• 期：Complete
• 页码：167-178
• 全文大小：4013 K
• 卷排序：280

文摘

Pleistocene-aged kame deltas exist in central Lower Michigan. These deltas formed in previously unstudied, high-elevation paleolakes. The deltas are uniformly sandy. Luminescence ages average 23.1 ka, pointing to very early ice retreat