{"title":"纽约州上萨斯奎哈纳谷的冰坝湖和劳伦蒂德里德旺斯的证据","authors":"P. Fleisher","doi":"10.5539/jgg.v14n2p52","DOIUrl":null,"url":null,"abstract":"Landforms and well logs document a system of ice-contact and proglacial lakes in the upper Susquehanna valley during Laurentide Ice Sheet retreat from the Appalachian Plateau, central New York State. Recessional moraines formed dams for all lakes, except a newly revealed “Ancestral Goodyear Lake” retained behind an ephemeral ice dam stranded at Colliersville. A prominent dead-ice sink currently occupies the valley floor at the dam site \n \nAncestral Goodyear Lake held a stable lake level at 1360 feet as represented by thick lake sediments perched in water well logs on the valley wall above Goodyear Lake. A deltaic terrace at 1250 feet in the same vicinity marks a second, lower lake strand. \n \nIn addition, water well logs on the adjacent Portlandville Moraine contain lake sediments bound above and below by ice-contact material deposits thus demonstrating a Laurentide readvance that subsequently dammed the valley to form Glacial Lake Milford as part of the Susquehanna Lake System.","PeriodicalId":42282,"journal":{"name":"Journal of Geology Geography and Geoecology","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evidence of An Ice-Dammed Lake and Laurentide Readvance Upper Susquehanna Valley, New York State\",\"authors\":\"P. Fleisher\",\"doi\":\"10.5539/jgg.v14n2p52\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Landforms and well logs document a system of ice-contact and proglacial lakes in the upper Susquehanna valley during Laurentide Ice Sheet retreat from the Appalachian Plateau, central New York State. Recessional moraines formed dams for all lakes, except a newly revealed “Ancestral Goodyear Lake” retained behind an ephemeral ice dam stranded at Colliersville. A prominent dead-ice sink currently occupies the valley floor at the dam site \\n \\nAncestral Goodyear Lake held a stable lake level at 1360 feet as represented by thick lake sediments perched in water well logs on the valley wall above Goodyear Lake. A deltaic terrace at 1250 feet in the same vicinity marks a second, lower lake strand. \\n \\nIn addition, water well logs on the adjacent Portlandville Moraine contain lake sediments bound above and below by ice-contact material deposits thus demonstrating a Laurentide readvance that subsequently dammed the valley to form Glacial Lake Milford as part of the Susquehanna Lake System.\",\"PeriodicalId\":42282,\"journal\":{\"name\":\"Journal of Geology Geography and Geoecology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2022-11-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Geology Geography and Geoecology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5539/jgg.v14n2p52\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Geology Geography and Geoecology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5539/jgg.v14n2p52","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
Evidence of An Ice-Dammed Lake and Laurentide Readvance Upper Susquehanna Valley, New York State
Landforms and well logs document a system of ice-contact and proglacial lakes in the upper Susquehanna valley during Laurentide Ice Sheet retreat from the Appalachian Plateau, central New York State. Recessional moraines formed dams for all lakes, except a newly revealed “Ancestral Goodyear Lake” retained behind an ephemeral ice dam stranded at Colliersville. A prominent dead-ice sink currently occupies the valley floor at the dam site
Ancestral Goodyear Lake held a stable lake level at 1360 feet as represented by thick lake sediments perched in water well logs on the valley wall above Goodyear Lake. A deltaic terrace at 1250 feet in the same vicinity marks a second, lower lake strand.
In addition, water well logs on the adjacent Portlandville Moraine contain lake sediments bound above and below by ice-contact material deposits thus demonstrating a Laurentide readvance that subsequently dammed the valley to form Glacial Lake Milford as part of the Susquehanna Lake System.