High-Resolution Seismic Reflection Evidence for Middle Holocene Environmental Change, Owasco Lake, New York

Approximately 70 km of new decimeter-resolution seismic reflection profile data from Owasco Lake, New York define a middle Holocene (∼4600 14 C yr B.P.) erosion surface in the north end of the lake at water depths as great as 26 m. Beneath the lake, post-glacial sediments are up to 9 m thick and represent about 10% of the total sediment fill. Early to middle Holocene sediments, ∼6 m thick, contain biogenic gas at the south end of the basin and a large (4 km × 300 m × 15 m) subaqueous slide deposit along the east-central portion of the lake. Late Holocene sediments are thinner or absent, particularly at the north end of the lake. The middle Holocene erosion surface may have been produced by a drop in lake level. Alternatively, it may represent a change in climate during the transition between the relatively warm Holocene hypsithermal and cool neoglacial. At this time (∼4600 14 C yr B.P.) circulation in Owasco Lake appears to have evolved from sluggish to active. The increased circulation, which persists today, probably resulted from atmospheric cold fronts with strong southwesterly winds that piled up water at the north end of the lake. The increased water circulation may have been ultimately driven by decreasing insolation, which produced an increased pole-to-equator thermal gradient and thus, stronger global winds that began at the transition between the hypsithermal and neoglacial.

Geomorphology · Holocene · Holocene climatic optimum · Physical geography · Sediment · earthquake and tectonic studies · Geological formations and processes · Geology · Geology and Paleoclimatology Research · Oceanography

• Tree-Ring Investigation of Holocene Flood-Deposited Wood From the Oneida Lake Watershed, New York State

  Irina P Panyushkina, Steven W Leavitt et al.•Tree-Ring Research•2015

  Incluir item

• A Holocene pollen-inferred climate reconstruction for Vermont, USA

  Open Access•Laurie D Grigg, Ioana C Stefanescu et al.•Quaternary Research•2023

  Incluir item

• Tripartite climate reversal in Central Europe 5600–5300 years ago

  Open Access•Michel Magny, Urs Leuzinger et al.•Quaternary Research•2006

  Incluir item

• A major widespread climatic change around 5300 cal. yr BP at the time of the Alpine Iceman

  Open Access•Michel Magny, Jean Nicolas Haas•Journal of Quaternary Science•2004

  Incluir item

• Patterns, processes, and impacts of abrupt climate change in a warm world

  Open Access•Bryan N Shuman•Wiley Interdisciplinary Reviews…•2012

  Incluir item

• A side-scan sonar and high-resolution Chirp sub-bottom profile study of the natural and anthropogenic sedimentary record of Lower Lough Erne, northwestern Ireland

  Open Access•Brooke Lafferty, R Quinn et al.•Journal of Archaeological Science•2005

  Incluir item

• High-resolution seismic profiling reveals basin floor morphology, sedimentary processes, and shallow stratigraphy at Convict Lake (California, USA)

  Open Access•Michael M Mcglue, Edward W Woolery•Quaternary International•2022

  Incluir item

• The Impact of Holocene Climate on the Development of Prehistoric Societies in Southern Siberia

  Open Access•Marianna Kulkova, Sergey Krasnienko•Radiocarbon•2010

  Incluir item

• Neoglacial Glacier Fluctuations in the Canadian Rockies

  Open Access•Brian H Luckman, Gerald Holdsworth et al.•Quaternary Research•1993

  Incluir item

• Do Greenland Ice Cores Reflect NW European Interglacial Climate Variations?

  Open Access•Eiliv Larsen, Hans Petter Sejrup et al.•Quaternary Research•1995

  Incluir item

• Reconstructing the Rate of Accumulation of Lake Sediment

  Open Access•John T Lehman•Quaternary Research•1975

  Incluir item

• An ~15,000-Year Record of El Niño-Driven Alluviation in Southwestern Ecuador

  Open Access•Donald T Rodbell, Geoffrey O Seltzer et al.•Science•1999

  Incluir item

• Late Glacial Stage and Holocene Tropical Ice Core Records from Huascarán, Peru

  Open Access•Lonnie G Thompson, Ellen Mosley-Thompson et al.•Science•1995

  Incluir item

• Climatic Changes of the Last 18,000 Years

  Open Access•COHMAP Members•Science•1988

  Incluir item