Fluvial processes ; Fluvialterrace ; Geomorphogenesis ; Isostasy ; Palaeogeography ; Pennsylvania ; Stratigraphic correlation ; Stratigraphy ; United States
Within the context of the new age control, the purposes of this paper are to: 1) identify, map and correlate fluvialterraces along the lower Susquehanna River; 2) assign ages to the terraces by downstream correlation to the fluvial stratigraphic
seequence at the river mouth; 3) develop a model for terrace genesis on a U.S. Atlantic-type passive margin; and 4) suggest the nature, magnitude, and rates of passive margin deformation.
Laboratory experiment and digital simulation of multiple fill-cut terrace formation
Channel geometry ; Experimentation ; Fluvial processes ; Fluvialterrace ; Honshu ; Japan ; Meander ; Numerical model ; Terrace
The formation mechanism of multiple erosional terraces which develop in the dissection process of sedimentary valley fills was investigated by laboratory experiments and computer simulations. Sequences of unpaired terraces were produced
on experimental fan-like deposits under conditions of constant water discharge, no base-level change, and no sediment supply. The terrace formation process was investigated by relating terrace morphology to the process of lateral channel shifting accompanied
The relationship between age and soil development index values in a fluvialterrace sequence and, more precisely, their distribution with regards profile depth, is the main purpose of this study.
Author examines the most widely investigated topic of fluvial geomorphology in Hungary, the formation of river terraces. He starts with an overview about the basic literature in this theme, which is followed by the theoretical results
Corriente de agua ; Cronología ; Hidrología fluvial ; Hungría ; Terraza ; Terraza fluvial
The study aims to review the causes of river terrace evolution, as well as, its chronology and the alternating mechanism that occurred during formation periods, called terminations. Based on data collected and published during decades of terrace
research the A. attempts to outline the evolution and chronology of Hungary’s terrace system. - (AM)
Fluvial sediments in the Vltava, Berounka, Sázava and Labe valleys are preserved as extensive river terrace sequences. These accumulation terraces originated from an interaction of climate-morphogenetic and neotectonic processes in the late Cenozoic
Fluvialterrace formation along Wyoming's Laramie Range as a response to increased late Pleistocene flood magnitudes
Climatic variation ; Flood ; Fluvial erosion ; Fluvial processes ; Fluvialterrace ; Geochronology ; Mountain ; Pleistocene ; Quaternary ; United States of America ; Wyoming
This study aims to establish the timing of strath formation and review the mechanisms for terrace formation in rivers that drain Wyoming's Laramie Range. They provide evidence for terrace formation in a river that was distally glaciated, and one
Asynchronous terrace development in degrading braided channels
Arizona ; Climatic variation ; Fluvial processes ; Fluvialterrace ; Palaeogeography ; Palaeohydrology ; Quaternary ; United States
This paper describes a process of terrace development in rapidly degrading channels that produces a physically continuous terrace tread that consists of temporally nonsynchronous segments. Moreover, the AA. show that lower terraces developed
in the upstream portion of a degrading channel may correlate with higher terrace surfaces developed farther down channel. The results are based upon data collected and observations made in degrading braided channels in a laboratory flume and in a degrading braided
Austria ; Cartography ; Dating ; Fluvialterrace ; Germany ; Pleistocene ; Terrace
of fluvialterraces is developed along the Inn. These terraces, which date from the late Pleistocene to the early Holocene, are incised in the Wüum floodpain, the lower terrace. The mapping of the fluvialterraces was the first main goal of this thesis
. A second aim was to establish numerical ages for the terraces in question. A third goal was to correlate the phases of geomorphodynamic activity in the Inn valley, of which the fluvialterraces give evidence, with those that were dated in other catchments
Processes of Holocene terrace formation in a steep gravel-bed river, Nikko volcanic area, central Japan
Fluviatile ; Géographie de l'Asie ; Géomorphodynamique ; Holocène ; Japon ; Lit de graviers ; Lit fluvial ; Quaternaire ; Terrasse fluviatile
Flume experiments suggest that, in a breaded stream, terraces are formed from bars under erosional conditions. This paper examines these processes of terrace formation with the aid of field data on the Holocene terraces of the Nedori River
A contribution to the knowledge of the geomorphologic development of the Upper Vltava river valley between Lipno-dam and Rožmberk nad Vltavou, using the terrace system reconstruction and comparison with Neogene gravel locations in the Vltava-Danube
TerEx Toolbox for semi-automated selection of fluvialterrace and floodplain features from lidar
Automated mapping ; Digital elevation model ; Floodplain ; Fluvial processes ; Fluvialterrace ; LiDAR ; Minnesota ; United States of America
Cartografía automática ; Estados Unidos ; Fluviatil ; LiDAR ; Llanura de inundación ; Modelo numérico de terreno ; Terraza fluvial
terrace and floodplain surfaces. They validate the tool in 2 locations where terrace maps were previously developed via manual digitization from lidar and extensive field mapping campaigns. The tool is also tested on 6 different types of rivers to provide
examples of starting selection parameters. Generally, the tool provides a high quality draft map of terrace and floodplain surfaces. The AA. find that the tool functions best in catchments where the terraces are spatially extensive, with distinct
differences between the terrace and floodplain. The most challenging environments for semi-automated terrace and floodplain mapping include steep catchments with dense riparian vegetation, and very small terraces. They then apply the tool to map terraces
and floodplains in the Root River watershed, southeastern Minnesota and generate exceedance plots for terrace heights. These plots provide a first pass analysis to indicate the tributaries and reaches of the river where terraces constitute a significant source
Spatial variability of soil properties at different scales within three terraces of the Henares River (Spain)
Chronosequence ; Fluvialterrace ; Model ; Pedogenesis ; Soil properties ; Soria ; Spain ; Spatial variation ; Statistics
This paper shows results obtained from the geostatistical analysis of soil properties within the terraces generated by Quaternary evolution of the Henares River incision. Stationarity is assumed provided the similar nature, origin of the parent
material and pedogenesis of the terraces. The study examines sampling at different spatial scales to establish 1) differences among 3 selected terraces of lower, medium and upper Pleistocene age and 2) short- and medium-range variations occurring within
Terraces, uplift and climate in the Karakoram Mountains, Northern Pakistan : Karakoram intermontane basin evolution in Quaternary of the Karakoram and Himalaya.
of terraces are recognised by the AA : glaciofluvial, morainic, fluvial, debris, lacustrine and fan terraces.
No simple relationship exists between terrace heights, degree of incision and terrace deformation, and the tectonic and climatic history of the area. Allocyclic processes further complicate the interpretation of terrace formation. Six main types
, the morphogenetic characteristics of the Želivka Valley are presented and the fluvial sediments and terrace system of its river are described, including a chronostratigraphic correlation with other river terraces of the Bohemian Massif. - (EN)
This article presents the results of a geomorphological analysis of localities of Quaternary river terraces along the Želivka River and its historical-genetic interpretation in light of the formation of the Sázava terrace system. In addition
The evolution of the course of the Meuse River was reconstructed from Liège to Maastricht. New pieces of terraces were discovered and as much information as possible on the altitudes of terrace bases were collected. For the first time
, the correlations of terrace pieces were done taking into account the existence of paleomeanders. That method has introduced new correlations of terraces. The capture of the Meuse downwards from Liège was modeled. Correlations of Higher Terraces were done without
referring to tectonic movements which were involved in previous publications. A chronostratigraphical model of the terraces is proposed; this shows an important upheavel of the Ardenne during the Quaternary.
Morphostratigraphie des terrasses fluviales de la Sazava dans le Massif Bohémien
Area of old hard rocks ; Bohemia ; Czech Republic ; Fluvialterrace ; Geomorphology ; Morphostratigraphy ; Quaternary ; Stream
Corriente de agua ; Cuaternario ; Geomorfología ; Macizo antiguo ; Terraza fluvial
evolution of the river valley. Two levels of Neogene fluvial sediments and seven Quaternary terrace accumulations along the Sázava course are distinguished. - (EN)
The results of geomorphological research into the Sázava river terraces are presented. This terrace system is characteristic by its variable structure which is conditioned by specific hydrodynamic processes that existed during the late Cenozoic
Temporal changes in colour, mineralogical, chemical, physical and mechanical properties due to weathering during 350,000 years were examined using sandstone gravel in fluvialterrace deposits with a known emergence time which were distributed
Rates of rock property changes with weathering : andesite gravel in fluvialterrace deposits in Nasuno-ga-hara, Japan
Erosion rate ; Fluvialterrace ; Honshu ; Igneous rock ; Japan ; Mineralogy ; Porosity ; Rock ; Rock mechanics ; Weathering
In order to estimate the rates of weathering-rind formation, this paper investigates andesite gravel with weathering rinds taken from dated fluvial-terrace deposits in the Nasuno-ga-hara, Central Japan. Mineralogical, chemical, physical