Evidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States

Peatlands in Canaan Valley National Wildlife Refuge hold a pedomemory of Pleistocene and Holocene climatic fluctuations in the central Appalachian Mountains of the eastern United States. A field investigation profiling 88 organic soil profiles, coupled with 52 radiocarbon dates and peat accumulation...

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Autores principales:	Mitzy L. Schaney, James S. Kite, Christopher R. Schaney, James A. Thompson
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	peat stratigraphy peat humification Histosols Canaan Valley mid-Holocene Climatic Optimum Appalachian Mountains Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/c44cc1cce8e24fb3a5bf9860be1c9994
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id	oai:doaj.org-article:c44cc1cce8e24fb3a5bf9860be1c9994
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spelling	oai:doaj.org-article:c44cc1cce8e24fb3a5bf9860be1c99942021-11-25T17:43:18ZEvidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States10.3390/geosciences111104772076-3263https://doaj.org/article/c44cc1cce8e24fb3a5bf9860be1c99942021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3263/11/11/477https://doaj.org/toc/2076-3263Peatlands in Canaan Valley National Wildlife Refuge hold a pedomemory of Pleistocene and Holocene climatic fluctuations in the central Appalachian Mountains of the eastern United States. A field investigation profiling 88 organic soil profiles, coupled with 52 radiocarbon dates and peat accumulation rates, revealed a distinct sequence of organic soil horizons throughout five study areas. The dominantly anaerobic lower portions of the organic soil profiles consist of varied thicknesses of hemic and sapric soil materials, typically layered as an upper hemic horizon, underlain by a sapric horizon, underlain by another hemic horizon. Peat deposition began after the Last Glacial Maximum with relatively high Heinrich Stadial 1 accumulation rates to form the lowest hemic horizon. Peat accumulated at significantly slower rates as the climate continued to warm in the early Holocene Greenlandian Age. However, between 10,000 and 4200 cal yr BP peat accumulation decreased further and the decomposition of previously deposited peat prevailed, forming the sapric horizon. This interval of greater decomposition indicates a drier climatic with dates spanning the late Greenlandian Age through the Northgrippian Age. The upper hemic horizon within the anaerobic portion of the soil profile formed from high peat accumulation rates during the wetter late Holocene Meghalayan Age.Mitzy L. SchaneyJames S. KiteChristopher R. SchaneyJames A. ThompsonMDPI AGarticlepeat stratigraphypeat humificationHistosolsCanaan Valleymid-Holocene Climatic OptimumAppalachian MountainsGeologyQE1-996.5ENGeosciences, Vol 11, Iss 477, p 477 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	peat stratigraphy peat humification Histosols Canaan Valley mid-Holocene Climatic Optimum Appalachian Mountains Geology QE1-996.5
spellingShingle	peat stratigraphy peat humification Histosols Canaan Valley mid-Holocene Climatic Optimum Appalachian Mountains Geology QE1-996.5 Mitzy L. Schaney James S. Kite Christopher R. Schaney James A. Thompson Evidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States
description	Peatlands in Canaan Valley National Wildlife Refuge hold a pedomemory of Pleistocene and Holocene climatic fluctuations in the central Appalachian Mountains of the eastern United States. A field investigation profiling 88 organic soil profiles, coupled with 52 radiocarbon dates and peat accumulation rates, revealed a distinct sequence of organic soil horizons throughout five study areas. The dominantly anaerobic lower portions of the organic soil profiles consist of varied thicknesses of hemic and sapric soil materials, typically layered as an upper hemic horizon, underlain by a sapric horizon, underlain by another hemic horizon. Peat deposition began after the Last Glacial Maximum with relatively high Heinrich Stadial 1 accumulation rates to form the lowest hemic horizon. Peat accumulated at significantly slower rates as the climate continued to warm in the early Holocene Greenlandian Age. However, between 10,000 and 4200 cal yr BP peat accumulation decreased further and the decomposition of previously deposited peat prevailed, forming the sapric horizon. This interval of greater decomposition indicates a drier climatic with dates spanning the late Greenlandian Age through the Northgrippian Age. The upper hemic horizon within the anaerobic portion of the soil profile formed from high peat accumulation rates during the wetter late Holocene Meghalayan Age.
format	article
author	Mitzy L. Schaney James S. Kite Christopher R. Schaney James A. Thompson
author_facet	Mitzy L. Schaney James S. Kite Christopher R. Schaney James A. Thompson
author_sort	Mitzy L. Schaney
title	Evidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States
title_short	Evidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States
title_full	Evidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States
title_fullStr	Evidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States
title_full_unstemmed	Evidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States
title_sort	evidence of mid-holocene (northgrippian age) dry climate recorded in organic soil profiles in the central appalachian mountains of the eastern united states
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c44cc1cce8e24fb3a5bf9860be1c9994
work_keys_str_mv	AT mitzylschaney evidenceofmidholocenenorthgrippianagedryclimaterecordedinorganicsoilprofilesinthecentralappalachianmountainsoftheeasternunitedstates AT jamesskite evidenceofmidholocenenorthgrippianagedryclimaterecordedinorganicsoilprofilesinthecentralappalachianmountainsoftheeasternunitedstates AT christopherrschaney evidenceofmidholocenenorthgrippianagedryclimaterecordedinorganicsoilprofilesinthecentralappalachianmountainsoftheeasternunitedstates AT jamesathompson evidenceofmidholocenenorthgrippianagedryclimaterecordedinorganicsoilprofilesinthecentralappalachianmountainsoftheeasternunitedstates
_version_	1718412070946340864

Evidence of Mid-Holocene (Northgrippian Age) Dry Climate Recorded in Organic Soil Profiles in the Central Appalachian Mountains of the Eastern United States

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