@Article{RossettiBezeValeMoli:2021:LaPlSt,
author = "Rossetti, Dilce de Fatima and Bezerra, Francisco H. R. and
Valeriano, M{\'a}rcio de Morisson and Molina, Eder Cassola",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Federal do Rio Grande do Norte (UFRN)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade de S{\~a}o Paulo (USP)}",
title = "Late Pleistocene-Holocene stress in the South American intraplate
evidenced by tectonic instability in central Amazonia",
journal = "Quaternary Research (United States)",
year = "2021",
volume = "102",
pages = "205--221",
month = "July",
keywords = "Digital elevation model, Fluvial valleys, Intraplate stresses,
Late Pleistocene-Holocene, Neotectonics.",
abstract = "Documenting neotectonic instabilities and determining the style
and time of deformation in the vast and difficult to access
central Amazonia region is challenging. We focus on these issues
by investigating a large area of the Negro River drainage basin,
applying morphostructural analysis based on synthetic aperture
radar data. The digital elevation models of the C-band Shuttle
Radar Topography Mission and the L-band Protection System of
Amazonia were used as the database. We also used subsurface
magnetic information from the Earth Magnetic Anomaly Grid global
model to validate the morphostructures. The results revealed
NW-oriented morphostructural lineaments bounding multiple
depositional valley fills. These were extensively fragmented to
form regularly distributed en {\'e}chelon rectangular blocks
commonly offset horizontally by several kilometers. Strike-slip
faults and oblique, either normal or reverse, faults are present.
These structures were reactivated along the main NE- and
SW-oriented regional structural trends due to N-S-oriented
horizontal compression and E-W-oriented horizontal extension in
the late Pleistocene and Holocene. The extensive neotectonic
faulting results from the interplay of plate motion and Andean
uplifting since the late Pleistocene, combined with local
stresses.",
doi = "10.1017/qua.2020.123",
url = "http://dx.doi.org/10.1017/qua.2020.123",
issn = "0033-5894",
language = "en",
targetfile = "rossetti_late.pdf",
urlaccessdate = "04 maio 2024"
}