Sea-level fluctuations and coastal evolution in the state of Rio de Janeiro, southeastern Brazil

A groundbreaking study on the Rio de Janeiro coastline reveals a previously undocumented negative record of relative sea-level during the Late Pleistocene and Early Holocene transition, challenging established models. The research, utilizing topographic surveys, excavations, coring, and 14C dating, reconstructed a Holocene sea-level curve that identified rapid sea-level rise beginning around 8500 cal yr BP, peaking at +2.5 m between 4770 and 4490 cal yr BP before gradually declining to current levels. This finding aligns with broader patterns along South America's Atlantic coast, refining the understanding of coastal evolution in Brazil.

CASTRO, J. W. A., SUGUIO, K., SEOANE, J. C. S., CUNHA, A. M. D., & DIAS, F. F. (2014). Sea-level fluctuations and coastal evolution in the state of Rio de Janeiro, southeastern Brazil. Anais Da Academia Brasileira de Ciências, 86(2), 671–683. https://doi.org/10.1590/0001-3765201420140007