Mayans converted wetlands to farmland

Mascarelli, Amanda

doi:10.1038/news.2010.587

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Land Uses At the Ugb1

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“…(Hirth et al, 2013). After the Olmec Empire, the Mayas populated several sites of the UGB (Mascarelli, 2010) for twelve centuries and developed an empire based on the building of complex channels for producing irrigated agriculture (McNeil, 2012). Some hypothesis about the collapse of the Maya Empire point out on a climatic change related to fluctuations of ENSO (Kennett et al, 2012).…”

Section: Land Uses At the Ugbmentioning

confidence: 99%

Streamflow and sediment load assessment from 1950 to 2006 in the Usumacinta and Grijalva Rivers (Southern Mexico) and the influence of ENSO

Muñoz‐Salinas¹,

Castillo²

2015

CATENA

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Section: Land Uses At the Ugbmentioning

confidence: 99%

Streamflow and sediment load assessment from 1950 to 2006 in the Usumacinta and Grijalva Rivers (Southern Mexico) and the influence of ENSO

Muñoz‐Salinas¹,

Castillo²

2015

CATENA

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Geochronology and landscape evolution of the strand-plain of the Usumacinta and Grijalva rivers, southern Mexico

Muñoz‐Salinas

Castillo

Sanderson

et al. 2017

Journal of South American Earth Sciences

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The strand-plain of the Usumacinta and Grijalva rivers is the largest of the Gulf of Mexico as it is characterized by a sequence of well-preserved beach-dune ridges (n > 100) distributed ~150 km along the shoreline. This prominent coastal landform is part of the delta plain of Tabasco and Campeche. We present geochronogical data of the beach-dune ridges sequence of the Usumacinta and Grijalva rivers. Radiocarbon dating failed in providing consistent ages of the ridges in contrast to optically stimulated luminescence (OSL), which yielded coherent and robust dates. The oldest beach-dune ridges were formed ~2.5 ka. The presence of blocked-valley lakes evidences a recent process of sediment aggradation on the delta plain caused by a marine transgression. Using a regression model with the OSL ages and the distance of beach-dune ridges from the shoreline we estimate

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Mayans converted wetlands to farmland

Cited by 2 publications

References 2 publications

Streamflow and sediment load assessment from 1950 to 2006 in the Usumacinta and Grijalva Rivers (Southern Mexico) and the influence of ENSO

Streamflow and sediment load assessment from 1950 to 2006 in the Usumacinta and Grijalva Rivers (Southern Mexico) and the influence of ENSO

Geochronology and landscape evolution of the strand-plain of the Usumacinta and Grijalva rivers, southern Mexico

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