Lake-sediment evidence for the date of deglaciation of the Hidden Lake area, Kenai Peninsula, Alaska
1982; Geological Society of America; Volume: 10; Issue: 6 Linguagem: Inglês
10.1130/0091-7613(1982)10 2.0.co;2
ISSN1943-2682
Autores Tópico(s)Geological Studies and Exploration
ResumoResearch Article| June 01, 1982 Lake-sediment evidence for the date of deglaciation of the Hidden Lake area, Kenai Peninsula, Alaska Michael J. Rymer; Michael J. Rymer 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar John D. Sims John D. Sims 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar Author and Article Information Michael J. Rymer 1U.S. Geological Survey, Menlo Park, California 94025 John D. Sims 1U.S. Geological Survey, Menlo Park, California 94025 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1982) 10 (6): 314–316. https://doi.org/10.1130/0091-7613(1982)10 2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Michael J. Rymer, John D. Sims; Lake-sediment evidence for the date of deglaciation of the Hidden Lake area, Kenai Peninsula, Alaska. Geology 1982;; 10 (6): 314–316. doi: https://doi.org/10.1130/0091-7613(1982)10 2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract An abrupt environmental change is reflected in a core from Hidden Lake, Alaska, by differences in sediment type, chlorite crystallinity, and content of organic carbon and water of the sediments. This abrupt change in the sedimentary record occurred about 14,500 14C yr ago and probably marks the time of recession of the glacier from the Hidden Lake drainage basin. Deglaciation of the area was then underway, and rock flour was being deposited in the lake. After recession of the glacier from the Hidden Lake drainage basin, rock flour was no longer introduced, and organic-matter content of the sediment increased. By the dating of these changes in sediment type, we show that retreat of glaciers in this area took place significantly earlier than previously estimated; this agrees with the timing of retreat of alpine glaciers elsewhere in western North America. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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