Results 71 to 80 of about 18,588 (223)

A Mechanism of Formaticn of Fluvial Terraces

open access: yesThe Quaternary Research (Daiyonki-Kenkyu), 1966
Two examples of microtopography of fluvial terrace plains are described from the River Shinano, central Japan (Figs. 2 and 3). The topography consists of narrow, shallow depression beneath the backward scarp, and of low swells in front of the depression. They are regarded as abandoned channels and old meander-channel bars, respectively. Another example
openaire   +2 more sources

What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature

open access: yesArchaeometry, EarlyView.
Abstract The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative)
Metin I. Eren   +23 more
wiley   +1 more source

Pleistocene-Holocene sedimentation of Solimões-Amazon fluvial system between the tributaries Negro and Madeira, Central Amazon

open access: yesBrazilian Journal of Geology
: In the scope of Solimões-Amazon fluvial system between the Negro and Madeira tributaries, three levels of Quaternary fluvial terraces overlie the Alter do Chão and Novo Remanso formations further than 100 km southward its current main channel.
Eliezer Senna Gonçalves Júnior   +4 more
doaj   +1 more source

Terrace Morpho-Sedimentary Sequences on the Sibari Plain (Calabria, Southern Italy): Implication for Sea Level and Tectonic Controls

open access: yesGeosciences, 2022
The Sibari Plain (northeastern Calabria) shows a well-developed stair of late Quaternary marine/coastal terraces resulting from the interaction between sea level fluctuations and tectonic uplift.
Federica Lucà   +3 more
doaj   +1 more source

Performance evaluation of three DEM‐based fluvial terrace mapping methods

open access: yesEarth Surface Processes and Landforms, 2016
AbstractThe availability of high‐resolution digital elevation models (DEMs) derived from airborne light detection and ranging (LiDAR) surveys has spurred the development of several methods to identify and map fluvial terraces. The post‐glacial landscape of the Sheepscot River watershed, Maine, where land‐use change has produced fill terraces upstream ...
Austin J Hopkins, Noah P Snyder
openaire   +2 more sources

Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland

open access: yesBoreas, EarlyView.
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells   +4 more
wiley   +1 more source

Investigation of the relationships between basin morphology, tectonic uplift, and denudation from the study of an active fold belt in the Siwalik Hills, central Nepal [PDF]

open access: yes, 1999
The present study investigates correlations between an extensive range of geomorphic properties that can be estimated from a digital elevation model and the uplift rate on geological timescales.
Avouac, J.-P.   +3 more
core  

Flood magnitude-frequency and lithologic control on bedrock river incision in post-orogenic terrain [PDF]

open access: yes, 2006
Mixed bedrock-alluvial rivers - bedrock channels lined with a discontinuous alluvial cover - are key agents in the shaping of mountain belt topography by bedrock fluvial incision.
Annandale   +111 more
core   +1 more source

Fluvial terraces along the Tama River, Kanto district.

open access: yesThe Quaternary Research (Daiyonki-Kenkyu), 1990
The Tama River flows from the Kanto Mountains, 1, 000 to 2, 000 meters high, and across the Kanto Plain into Tokyo Bay. Fluvial terraces from the Late Pleistocene are well developed along the river. They are classified into four groups according to the differences in the relative height above the river floor and in the tephra-cover.
openaire   +2 more sources

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