Assessment the Impacts of Sea-Level Changes on Mangroves of Ceara-Mirim Estuary, Northeastern Brazil, during the Holocene and Anthropocene.

ABSTRACT: Predictions of the effects of modern Relative Sea-Level (RSL) rise on mangroves should be based on decadal-millennial mangrove dynamics and the particularities of each depositional environment under past RSL changes. This work identified inland and seaward mangrove migrations along the Ceará-Mirim estuary (Rio Grande do Norte, northeastern Brazil) during the mid-late Holocene and Anthropocene based on sedimentary features, palynological, and geochemical (δ¹³C, δ¹⁵N, C/N) data integrated with spatial-temporal analysis based on satellite images. The data indicated three phases for the mangrove development: (1°) mangrove expansion on tidal flats with estuarine organic matter between >4420 and ~2870 cal yrs BP, under the influence of the mid-Holocene sea-level highstand;

SUBMITTER: Nunes SPDQ 

PROVIDER: S-EPMC10141466 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature