10 000 yr record of extreme hydrologic events

Abstract

Research Article| April 01, 2000 10 000 yr record of extreme hydrologic events Sarah L. Brown; Sarah L. Brown 1Department of Geology, University of Vermont, Burlington, Vermont 05405, USA Search for other works by this author on: GSW Google Scholar Paul R. Bierman; Paul R. Bierman 1Department of Geology, University of Vermont, Burlington, Vermont 05405, USA Search for other works by this author on: GSW Google Scholar Andrea Lini; Andrea Lini 1Department of Geology, University of Vermont, Burlington, Vermont 05405, USA Search for other works by this author on: GSW Google Scholar John Southon John Southon 2Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, California 94551, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Sarah L. Brown 1Department of Geology, University of Vermont, Burlington, Vermont 05405, USA Paul R. Bierman 1Department of Geology, University of Vermont, Burlington, Vermont 05405, USA Andrea Lini 1Department of Geology, University of Vermont, Burlington, Vermont 05405, USA John Southon 2Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, California 94551, USA Publisher: Geological Society of America Received: 23 Sep 1999 Revision Received: 10 Jan 2000 Accepted: 14 Jan 2000 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2000) 28 (4): 335–338. https://doi.org/10.1130/0091-7613(2000)28<335:YROEHE>2.0.CO;2 Article history Received: 23 Sep 1999 Revision Received: 10 Jan 2000 Accepted: 14 Jan 2000 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Sarah L. Brown, Paul R. Bierman, Andrea Lini, John Southon; 10 000 yr record of extreme hydrologic events. Geology 2000;; 28 (4): 335–338. doi: https://doi.org/10.1130/0091-7613(2000)28<335:YROEHE>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 Well-dated lacustrine sediments provide a hydrologic record indicating that the frequency and magnitude of runoff events, and by inference, storms, have varied over the past 10 k.y. in northern New England. We used five sediment cores and radiocarbon dating to develop a chronology of Holocene hydrologic events for the Ritterbush Pond basin, northern Vermont. Chemical and physical analyses allow us to identify 52 distinct layers of predominately inorganic sediment that represent terrestrially derived material delivered to the pond by runoff events. The thickness of some layers suggests hydrologic events at least equal in size to, and probably much larger than, any storm or flood recorded during nearly 300 yr of written regional history. Layer thickness and frequency and, by analogy, storm size and recurrence, change through the Holocene. The largest events occurred 2620, 6840, and 9440 calibrated 14C years before present (cal 14C yr B.P.). The most frequent hydrologic events occurred in three periods: 1750 to 2620, 6330 to 6840, and >8600 cal yr B.P. The recurrence interval of layer deposition during stormy periods averages 130 ± 100 cal yr, whereas the recurrence interval during less stormy periods is longer, 270 ±170 cal yr. The Ritterbush Pond event record illustrates the potential of inorganic lacustrine sediment to serve as a proxy record for estimating paleoflood frequency and deciphering climate change. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.