Results 11 to 20 of about 131,649 (218)

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

open access: yesActa Botânica Brasílica, 2019
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.
Mayra Nina Araujo Silva   +3 more
doaj   +7 more sources

Holocene monsoonal dynamics and fluvial terrace formation in the northwest Himalaya India

open access: yesGeology, 2006
Aluminum-26 and beryllium-10 surface exposure dating on cut-and-fill river-terrace surfaces from the lower Sutlej Valley (northwest Himalaya) documents the close link between Indian Summer Monsoon (ISM) oscillations and intervals of enhanced fluvial ...
Strecker, Manfred   +8 more
core   +4 more sources

On the potential for regolith control of fluvial terrace formation in semi-arid escarpments [PDF]

open access: yesEarth Surface Dynamics, 2016
Cut–fill terraces occur throughout the western Andes, where they have been associated with pluvial episodes on the Altiplano. The mechanism relating increased rainfall to sedimentation is, however, not well understood. Here, we apply a hillslope sediment
Litty, Camille   +5 more
core   +7 more sources

Fluvial stratigraphy and palaeoenvironments in the Pasinler Basin, eastern Turkey [PDF]

open access: yes, 2005
Valley floor sediments from the Pasinler Basin, eastern Turkey, provide evidence for Pleistocene and Holocene floodplain conditions. Three terrace surfaces are present.
Rust, DJ, Bayraktutan, MS, Collins, PEF
core   +6 more sources

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

Terrace reconstruction and long profile projection: a case study from the Solent river system near Southampton, England [PDF]

open access: yes, 2012
River terrace sequences are important frameworks for archaeological evidence and as such it is important to produce robust correlations between what are often fragmentary remnants of ancient terraces.
Schwenninger, J-L   +9 more
core   +1 more source

Towards a budget approach to Pleistocene terraces: preliminary studies using the River Exe in South West England, UK [PDF]

open access: yes, 2009
This paper presents a first approach to using a sediment budget methodology for paired terrace staircase sediments in SW England. Although a budget approach has become firmly established in Holocene fluvial studies, it has not been used in Pleistocene ...
Toms, P.S.   +10 more
core   +1 more source

Diverse Responses of Alluvial Rivers to Periodic Environmental Change

open access: yesGeophysical Research Letters, 2023
Alluvial rivers aggrade, incise, and adjust their sediment‐transport rates in response to changing sediment and water supply. Fluvial landforms, such as river terraces, and downstream stratigraphic archives may therefore record information about past ...
F. McNab   +3 more
doaj   +1 more source

Integrated chronological control on an archaeologically significant Pleistocene river terrace sequence: the Thames-Medway, eastern Essex, England [PDF]

open access: yes, 2012
Late Middle Pleistocene Thames-Medway deposits in eastern Essex comprise both large expanses of Palaeolithic artefact-bearing river sands/gravels and deep channels infilled with thick sequences of fossiliferous fine-grained estuarine sediments that yield
J.E. Whittaker   +28 more
core   +1 more source

Late Quaternary Drainage Rearrangement Prevents the Vegetation Development in the La Tatacoa Intermontane Basin of the Colombian Andes

open access: yesFrontiers in Earth Science, 2022
The Tatacoa Desert (TD) is a Cenozoic basin between the Central and Eastern Cordilleras in the southern Colombian Andes. Its sparse vegetation and Badlands morphology resemble a semi-arid environment, despite receiving ∼1,300 mm of mean annual ...
D. H. Souza   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy