Results 21 to 30 of about 778 (203)

Scanning Electron Microscopy (SEM) in the surficial cover analysis of the low fluvial-marine terraces in the southern coast of São Paulo state, Brazil

open access: yesRevista Brasileira de Geomorfologia, 2022
The Ribeira de Iguape estuarine system in Southeastern Brazil has resulted from the complex interactions betweenallogenic (climate, tectonics, and human interventions) and autogenic geomorphological processes.
André de Oliveira Souza   +1 more
doaj   +1 more source

Lateral variations in sedimentation records along the strike length of North Almora Thrust: Central Kumaun Himalaya

open access: yesQuaternary Science Advances, 2020
The present study has been carried out with special emphasis on the spatial and temporal variability of sedimentary architecture along the strike length of North Almora Thrust (NAT). Here, we investigated fluvial terraces along Saryu, Jaigan, Kosi, Gagas,
Girish Ch Kothyari   +5 more
doaj   +1 more source

Paleoglacial footprint and fluvial terraces of the Shaluli Shan, SE Tibetan Plateau

open access: yesJournal of Maps, 2021
This study provides mapping of glacial and fluvial geomorphology in the Shaluli Shan region on the eastern margin of the south-eastern Tibetan Plateau. Based on TanDEM-X 12 m elevation data and GoogleEarth imagery, glacial valleys, ice-marginal moraines,
R. A. A. Schneider   +4 more
doaj   +1 more source

Determining the Age of Terrace Formation Using Luminescence Dating—A Case of the Yellow River Terraces in the Baode Area, China

open access: yesMethods and Protocols, 2020
Dating fluvial terraces has long been a challenge for geologists and geomorphologists, because terrace straths and treads are not usually directly dated.
Jia-Fu Zhang   +3 more
doaj   +1 more source

Sporepolinic morphology of fluvial terrace sediments in the Western Amazon [PDF]

open access: yesActa Botanica Brasilica, 2020
ABSTRACT Morphological descriptions were made for pollen grains and spores extracted from samples from three sedimentary sections - Chandless 1, Purus 10 and Purus 30 - from fluvial terraces on the Chandless and Purus rivers, Acre State, Brazil. Level CH1-12 at Chandless 1 was C14-dated to 4861 - 5050 cal yr BP, P10-3 of Purus 10 was dated through the ...
Mayra Nina Araujo Silva   +3 more
openaire   +5 more sources

Climate changes and the formation of fluvial terraces in central Amazonia inferred from landscape evolution modeling [PDF]

open access: yesEarth Surface Dynamics, 2022
Climate changes have been considered an essential factor controlling the shaping of the recent alluvial landscapes in central Amazonia, with implications for explaining the biogeographic patterns in the region.
A. H. do Prado   +6 more
doaj   +1 more source

Alluvial channel response to environmental perturbations: fill-terrace formation and sediment-signal disruption [PDF]

open access: yesEarth Surface Dynamics, 2019
The sensitivity of fluvial systems to tectonic and climatic boundary conditions allows us to use the geomorphic and stratigraphic records as quantitative archives of past climatic and tectonic conditions. Thus, fluvial terraces that form on alluvial fans
S. Tofelde   +6 more
doaj   +1 more source

Morphoneotectonics of the Abruzzo Periadriatic Area (Central Italy): Morphometric Analysis and Morphological Evidence of Tectonics Features

open access: yesGeosciences, 2021
Drainage basin-scale morphometric analysis and morphological evidence of tectonics represent helpful tools to evaluate and investigate morphoneotectonic processes in tectonically active regions.
Enrico Miccadei   +2 more
doaj   +1 more source

Climate changes and the formation of fluvial terraces in central Amazonia [PDF]

open access: yes, 2021
Abstract. Climate changes have been considered as an essential factor controlling the shaping of the recent alluvial landscapes in central Amazonia, with implications for explaining the biogeographic patterns in the region. This landscape is characterized by wide floodplains and various terrace levels at different elevations.
Ariel Henrique do Prado   +4 more
openaire   +1 more source

Geomorphological analysis using small unmanned aerial vehicles and submeter GNSS (Gara Soultana butte, High Plateaus Basin, Eastern Morocco)

open access: yesJournal of Maps, 2020
The High Plateaus Basin is an important region to understand landscape evolution and human occupation in North Africa during the Quaternary. We focused on the Gara Soultana area, applying Unmanned Aerial Vehicles, photogrammetry and a submeter Global ...
A. Benito-Calvo   +5 more
doaj   +1 more source

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