Artigo Revisado por pares

RADIOCARBON CHRONOLOGY OF LAKE LAHONTAN AND LAKE BONNEVILLE

1958; Geological Society of America; Volume: 69; Issue: 8 Linguagem: Inglês

10.1130/0016-7606(1958)69[1009

ISSN

1943-2674

Autores

Wallace S. Broecker, Phil C. Orr,

Tópico(s)

Isotope Analysis in Ecology

Resumo

Research Article| August 01, 1958 RADIOCARBON CHRONOLOGY OF LAKE LAHONTAN AND LAKE BONNEVILLE WALLACE S BROECKER; WALLACE S BROECKER LAMONT GEOLOGICAL OBSERVATORY, COLUMBIA UNIVERSITY, PALISADES, N. Y.; WESTERN SPELEOLOGICAL INSTITUTE, SANTA BARBARA, CALIF. Search for other works by this author on: GSW Google Scholar PHIL C ORR PHIL C ORR LAMONT GEOLOGICAL OBSERVATORY, COLUMBIA UNIVERSITY, PALISADES, N. Y.; WESTERN SPELEOLOGICAL INSTITUTE, SANTA BARBARA, CALIF. Search for other works by this author on: GSW Google Scholar Author and Article Information WALLACE S BROECKER LAMONT GEOLOGICAL OBSERVATORY, COLUMBIA UNIVERSITY, PALISADES, N. Y.; WESTERN SPELEOLOGICAL INSTITUTE, SANTA BARBARA, CALIF. PHIL C ORR LAMONT GEOLOGICAL OBSERVATORY, COLUMBIA UNIVERSITY, PALISADES, N. Y.; WESTERN SPELEOLOGICAL INSTITUTE, SANTA BARBARA, CALIF. Publisher: Geological Society of America First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1958, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1958) 69 (8): 1009–1032. https://doi.org/10.1130/0016-7606(1958)69[1009:RCOLLA]2.0.CO;2 Article history First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation WALLACE S BROECKER, PHIL C ORR; RADIOCARBON CHRONOLOGY OF LAKE LAHONTAN AND LAKE BONNEVILLE. GSA Bulletin 1958;; 69 (8): 1009–1032. doi: https://doi.org/10.1130/0016-7606(1958)69[1009:RCOLLA]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 SocietyGSA Bulletin Search Advanced Search Abstract Radiocarbon measurements on fresh-water carbonates have been used to determine the absolute chronology of the two largest fossil lakes in the Great Basin. The possibility of systematic errors due to exchange and to low initial C14 concentration has been considered with the conclusion that most of the measurements reported have not been affected by more than 10 per cent.The results of the study suggest a high-water period from 25,000 to about 14,000 years ago. This period was preceded by an interval of moderately low water level extending back to at least 34,000 years before present. Following a recession to a moderately low water level close to 13,000 years ago Lake Lahontan and possibly Lake Bonneville rose to their maximum levels close to 11,700 years ago. This rapid rise was followed by an equally rapid fall close to 11,000 years ago. This latter decline is recorded by terrestrial deposits in many of the wave-cut caves on the shore lines of the ancient lakes. There is some evidence for another maximum close to 10,000 years ago. The lakes have probably remained low since 9000 years ago.Consideration of the factors influencing the response of the lakes to climate change suggests that response is sufficiently rapid that the lake levels can be used as direct estimates of the relative climates. The lake-level chronology is hence a climate chronology for the Great Basin. 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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