Geological section across the holocene sediments in the northern and eastern parts of the Vistula deltaicplain in Evolution of the Vistula River Valley.
Chronostratigraphy and datations of the sediments in the Vistula deltaicplain showing the evolution of the marine transgression. Reconstruction of the environmental elements and of the hydrological regime.
Two mid-Holocene millenia of swamp forest in the Rhine/Meuse deltaicplain
The paleoenvironmental evolution of a Dutch deltaic swamp forest area during the mid-Holocene was strongly governed by a general rise of water level (bound to postglacial sea-level rise) and by fluctuations in this water-level rise. A phasing
The geomorphic dynamics and environmental history of an upper deltaic floodplain tract in the Sacramento-San Joaquin Delta, California, USA
California ; Charbon de bois ; Datation C 14 ; Delta ; Etats-Unis ; Géomorphodynamique ; Palynologie ; Paléo-environnement ; Plaine d'inondation ; Quaternaire ; Stratigraphie ; Transgression marine
estimated from the age-depth model. The findings reveal that upper delta plains do indeed have a distant geomorphology from floodplains and lower deltaic regions.
A multi-proxy approach was used to examine the geomorphic dynamics and environmental history of an upper deltaic floodplain tract in the Sacramento-San Joaquin Delta. Three long cores were analysed for bulk density, loss-on-ignition, fine (clay
Fluvial deposition on the Shoalhaven deltaicplain, Southern New South Wales
New research from the Shoalhaven deltaicplain prompts revision of ideas on fluvial deposition in coastal New South Wales. Thermoluminescence (TL) analysis indicates that there were at least 2 and probably 4 phases of Pleistocene deposition spanning
Relationships between the development of acid sulphate soil and landscape characteristics were examinated in a fluvial-dominated, estuarine-deltaicplain of the South China coast where polders have been constructed on a considerable scale for more
in response to water level increase is presented. The life span of salt marshes of the Mississippi River deltaicplain are estimated to be approximately 100 years.
The Menefee Formation (Mesaverde Group, Late Cretaceous) consists largely of deltaicplain and paralic deposits. The deposits were formed along the west coast of the Cretaceous Seaway. Based on theoretical models for the stacking of tidal delta
The site of Aquileia (northeastern Italy) : example of fluvial geoarchaeology in a Mediterranean deltaicplain
romaine est clairement démontrée. Les stratégies de développement urbain évoluent en fonction de la dynamique fluviale. En même temps qu'elle s'adapte aux contraintes hydrologiques naturelles de la plaine deltaïque, la société romaine contrôle l'extension
The Zohreh River delta is developed since the late-Holocene. The AA. aim to determine the coastal sedimentary processes of this delta and to detect the evolutionary trend of the deltaicplain at the northern Persian Gulf, based on field measurements
, numerical modeling, remote sensing and laboratory analyses. The results showed that flash floods and turbidity currents transport sediment to the deltaic area, and tidal currents play an important role in sediment redistribution and in the high diversity
of sedimentary facies. Flood plains, tidal flats, crevasse splays, nebka, and sabkha are the most important sedimentary facies in the study area. The rate of long-term progradation of the delta implies an increase of sediment supply from the catchment area due
a coastal barrier lagoon environment in the coastal plain. During the Late Holocene, increased sediments supplied to the low reach of the river promoted: (a): the progradation of deltaic coastal sandy ridges on the coastline and (b): the aggradation
The cross-referencing of sedimentological, stratigraphic, geoarchaeological and radiocarbon data enables to establish the geomorphologic evolution of the Late Holocene coastal flood plain of the Turia River. The Holocene marine transgression formed
of the floodplain on top of the sedimentary sequence. Four phases are clearly recognised in the geoarchaeological record of the flood plain. The navigable channel of the Roman and early Islamic periods became a wide and shallow braided channel in Medieval times
based on 77 modern surface sediment samples collected across the estuary from shallow marine environment to deltaic distributaries. Discussion of the results. In particular, a core from the delta plain shows the effects of sea-level change and deltaic
In the southeast Texas coastal plain, avulsions were studied on the lower Brazos, Navasota, Trinity, Neches and Sabine rivers using a combination of aerial imagery, digital elevation models and field surveys. Avulsions have important influences
with late Quaternary and Holocene coastal and fluvial-deltaic processes accounts for the major differences. Results show that even within a region of similar environmental controls and geological history local variations in inherited morphology can result
Caspienne Sea ; Delta ; Deltaicplain ; European part of Russia ; Geomorphogenesis ; Hydro-geomorphology ; Palaeogeomorphology ; River ; River mouth ; Sea level ; Stream flow ; Watershed
This paper concerns with the morphometry of the flood plains. Against the general conception that a flood plain widens from upstream to downstream, the AA. point out that, at least in the Moldavian Tableland, the width of a flood plain increases
only together with the increase of Strahler order; moreover, between two successive confluence of the same or of close orders, a flood plain narrows from upstream to downstream, being regenerated by a new confluence. This tendance is a general rule
in the Moldavian Tableland, and seems to have a large extension in the Romanian flood plains. - (E. Rusu).
The Coghinas coastal plain is an alluvial plain in a half-graben structure where three different zones are morphologically divided. On the basis of the criteria followed in this investigation, the climatic data, the comparison between historical
maps (since the 1841), the fluvial evolution suggest a discontinue and disuniform sedimentation related to the inner plain. - (NF)
The five distinct topographic units of the vicinity of the town (alluvial plain covered with wind-blown sand, Upper Pleistocene residual levels, high flood-plain, low flood-plain and the active flood-plain) are described and mapped by the author.
Zur Struktur und Genese der Bodendecke in den Great Plains der USA. Ein Uberblick. (Structure and genesis of the soil cover in the Great Plains of the USA. An overview)
Etats-Unis ; Great Plains, rég. ; Géographie de l'Amérique ; Pédogenèse
. The palaeochannels on the North China Plain can be classified as surface palaeochannels and shallow-buried palaeochannels and further divided into several types. The distribution of the palaeochannels in the North China Plain is radial on the piedmont plain, parallel
on the floodplain and crown-shaped on the coastal plain.