Multi-proxy paleoenvironmental data from Paulina Marsh inform human-environmental dynamics in the Northern Great Basin U.S.A.
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Le résumé fourni par la source
Understanding the dynamics between climate change and human adaptive strategies is a longstanding question driving paleoecological and archaeological research in North America's Great Basin. We present multiproxy data from five sediment cores retrieved from Paulina Marsh in the Fort Rock Basin, Oregon, an area renowned for its archaeology but lacking the paleoenvironmental data needed to fully contextualize those records. Radiocarbon, pollen, particle size, elemental, and charcoal analyses of one core, and geochronological data from four additional cores, reveal fluctuating vegetation communities, hydrologic conditions, and fire histories during the Early and Late Holocene that are consistent with models proposed to explain changing settlement-subsistence patterns in the region. There was likely an emergent marsh or meadow and an absence of Juniperus at the core site during the Early Holocene. Middle Holocene deposits are not present due to a geologic unconformity, perhaps because of channel migration and climatic aridity. Late Holocene sediments record a more mesic meandering stream system between ∼3900 and 2200 years ago, followed by an increase in xeric-adapted vegetation in the last 2000 years. The lack of Juniperus pollen in the Early Holocene sediments inform ongoing debates about Juniperus spread in the Great Basin. These data represent the first Early Holocene pollen record from the Fort Rock Basin and are one of few lowland vegetation histories of this age in the region. This study contributes to our understanding of past ecology in semi-arid environments, provides new context for archaeological interpretations, and establishes a framework for future work in the region.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Multi-proxy paleoenvironmental data from Paulina Marsh inform human-environmental dynamics in the Northern Great Basin U.S.A.
- Date Crossref
- 01/06/2024
- Éditeur
- Elsevier BV
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
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University of Oregon Department of Anthropology and Museum of Natural and Cultural History pays non établi dans la noticeUniversité ou école supérieure
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University of Nevada Department of Anthropology pays non établi dans la noticeUniversité ou école supérieure
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Oregon State University Department of Anthropology pays non établi dans la noticeUniversité ou école supérieure
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Concord University Department of Physical and Environmental Sciences pays non établi dans la noticeUniversité ou école supérieure
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University of Tennessee at Chattanooga Department of Social pays non établi dans la noticeUniversité ou école supérieure
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New Mexico Consortium pays non établi dans la noticeOrganisation à but non lucratif
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Center for Applied Fire and Ecosystem Science pays non établi dans la noticeInstitution
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Petrichor Research pays non établi dans la noticeInstitution
Department of Anthropology and Museum of Natural and Cultural History — University of Oregon, Department of Anthropology — University of Nevada et Department of Anthropology — Oregon State University, avec 5 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.