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Holocene variations...
Holocene variations in Lake Titicaca water level and their implications for sociopolitical developments in the central Andes
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- Guédron, Stéphane (författare)
- Université Grenoble Alpes, Institut des Sciences de la Terre, Institut de Recherche pour le Développement, Grenoble, France
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- Delaere, Christophe (författare)
- Centre de Recherches en Archéologie et Patrimoine, Université libre de Bruxelles, Brussels, Belgium
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- Fritz, Sherilyn C. (författare)
- Department of Earth and Atmospheric Sciences and School of Biological Sciences, University of Nebraska - Lincoln, Lincoln, NE 68588
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- Tolu, Julie, 1985- (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland; ETH Zürich, Zürich, Switzerland
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- Sabatier, Pierre (författare)
- Univ. Savoie Mont Blanc, Centre National de la Recherche Scientifiquel, Environnements Dynamiques et Territoires de la Montagne, Chambéry, France
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- Devel, Anne-Lise (författare)
- Univ. Savoie Mont Blanc, Centre National de la Recherche Scientifiquel, Environnements Dynamiques et Territoires de la Montagne, Chambéry, France
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- Heredia, Carlos (författare)
- Laboratorio de Hidroquímica - Instituto de Investigaciones Químicas - Universidad Mayor de San Andres, Campus Universitario de Cota Cotacasilla 3161, La Paz, Bolivia
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- Vérin, Claire (författare)
- Université Grenoble Alpes, Institut des Sciences de la Terre, Institut de Recherche pour le Développement, Grenoble, France
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- Alves, Eduardo Q. (författare)
- Royal Belgian Institute of Natural Sciences, Bruxelles, Belgium
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- Baker, Paul A. (författare)
- Division of Earth and Climate Sciences, Duke University, Durham, United Kingdom
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(creator_code:org_t)
- 2023-01-03
- 2023
- Engelska.
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Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 120:2
- Relaterad länk:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Holocene climate in the high tropical Andes was characterized by both gradual and abrupt changes, which disrupted the hydrological cycle and impacted landscapes and societies. High-resolution paleoenvironmental records are essential to contextualize archaeological data and to evaluate the sociopolitical response of ancient societies to environmental variability. Middle-to-Late Holocene water levels in Lake Titicaca were reevaluated through a transfer function model based on measurements of organic carbon stable isotopes, combined with high-resolution profiles of other geochemical variables and paleoshoreline indicators. Our reconstruction indicates that following a prolonged low stand during the Middle Holocene (4000 to 2400 BCE), lake level rose rapidly ~15 m by 1800 BCE, and then increased another 3 to 6 m in a series of steps, attaining the highest values after ~1600 CE. The largest lake-level increases coincided with major sociopolitical changes reported by archaeologists. In particular, at the end of the Formative Period (500 CE), a major lake-level rise inundated large shoreline areas and forced populations to migrate to higher elevation, likely contributing to the emergence of the Tiwanaku culture.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)
Nyckelord
- biomarkers
- carbon isotopes
- central Andes
- Lake Titicaca sediment
- societies
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
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Guédron, Stéphan ...
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Delaere, Christo ...
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Fritz, Sherilyn ...
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Tolu, Julie, 198 ...
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Sabatier, Pierre
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Devel, Anne-Lise
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visa fler...
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Heredia, Carlos
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Vérin, Claire
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Alves, Eduardo Q ...
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Baker, Paul A.
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visa färre...
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- NATURVETENSKAP
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