@Article{SilvaCoheRossPess:2018:DiSeCh,
author = "Silva, Mayra Nina Ara{\'u}jo and Cohen, Marcelo C. L. and
Rossetti, Dilce de F{\'a}tima and Pessenda, Luiz C. R.",
affiliation = "{Universidade Federal do Par{\'a} (UFPA)} and {Universidade
Federal do Par{\'a} (UFPA)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Universidade de S{\~a}o Paulo (USP)}",
title = "Did sea-level changes affect the brazilian amazon forest during
the holocene?",
journal = "Radiocarbon",
year = "2018",
volume = "60",
number = "1",
pages = "91--112",
keywords = "Amazonia, Branco River, climate, Holocene, palynology, sea
level.",
abstract = "In order to contribute to the discussion of Holocene climate
changes, four sediment cores were collected from the northern
Brazilian Amazonia lowland. These cores were studied through
pollen analysis and sedimentary features, and the results were
discussed within a chronological framework provided by radiocarbon
dating. The cores were sampled from fluvial terraces
representative of channel, floodplain/lake and crevasse splay
deposits formed since the mid-Holocene. The pollen samples derive
from floodplain/lake deposits and the pollen grains are mainly
composed by families Moraceae, Euphorbiaceae, Caesalpiniaceae,
Fabaceae, Rubiaceae, Melastomataceae, Combretaceae, Sapindaceae,
Poaceae, Cyperaceae, Aizoaceae, Apiaceae and genus Sebastiana. The
pollen data suggest no significant vegetation changes in the study
area for the past 48084886 cal yr BP. This led to proposing stable
climatic conditions since at least the middle Holocene. Such a
finding is contrary to the occurrence of a dry period during the
middle Holocene. The stabilization of the relative sea level about
6000 cal yr BP along the northern Brazilian littoral may have
influenced the water table, and favored the establishment and
maintenance of Amazonian lowland forest during the mid- and late
Holocene. In addition, this process may have attenuated the impact
of that dry period in areas under most fluvial influence.",
doi = "10.1017/RDC.2017.62",
url = "http://dx.doi.org/10.1017/RDC.2017.62",
issn = "0033-8222",
language = "en",
targetfile = "silva_did.pdf",
urlaccessdate = "03 jun. 2024"
}