Brackishenvironment ; Coastal dynamics ; Coastal environment ; Coastal geomorphology ; Freshwater environment ; Lake ; New Zealand ; Pool ; Sand bar ; Sea level ; South Island
Documentary and anecdotal evidence is presented to supplement geomorphological evidence for the conversion of Lake Forsyth (Wairewa) from marine inlet to brackish to freshwater lake within near historic time. Growth of the barrier across the lake
Carbon-isotope, diatom, and pollen evidence for Late Holocene salinity change in a brackish marsh in the San Francisco estuary
California ; Datation C 14 ; Diatomée ; Estuaire ; Etats-Unis ; Géochimie ; Holocène ; Palynologie ; Paléo-environnement ; Paléo-écologie ; Salinité ; San Francisco ; Sédimentation
C 14 dating ; California ; Diatom ; Estuary ; Geochemistry ; Holocene ; Palaeo-ecology ; Palaeo-environment ; Palynology ; Salinity ; San Francisco ; Sedimentation ; United States of America
Analysis of diatoms, pollen, and the carbon-isotopic composition of a sediment core from a brackish marsh in the northern part of the San Francisco Estuary has provided a paleosalinity record that covers the past 3000 yr. Changes in marsh
Small scale current ripples with opposed high-angle cross lamination indicate tidal movements during deposition. A fresh or brackish subtidal environment is suggested. - (AIS)
Bay ; Brackishenvironment ; C 14 dating ; California ; Estuary ; Freshwater environment ; Holocene ; Palaeo-environment ; San Francisco ; Stratigraphy ; United States of America
Baie ; California ; Datation C 14 ; Estuaire ; Etats-Unis ; Holocène ; Milieu dulçaquatique ; Milieu saumâtre ; Paléo-environnement ; San Francisco ; Stratigraphie
, biological, and sedimentary records from wetland peats located near the historical boundary between brackish and freshwater marshes. Twenty-five AMS C 14 dates provide chronostratigraphic control.
Special issue : Proceedings of the First International Conference on Geography in the ASEAN Region. Part II. Environment and resources; socio-economic issues
Asia ; Brackishenvironment ; Brunei ; Coastal environment ; Ecosystem ; Environmental conservation ; Hong Kong ; Mangrove ; Sout-Eastern Asia ; Thailand ; Tropical zone
Asie ; Asie du Sud-Est ; Brunéi ; Ecosystème ; Hong Kong ; Littoral ; Mangrove ; Milieu saumâtre ; Protection de l'environnement ; Thaïlande ; Zone intertropicale
High abundances of Fragilaria in Belgian coastal deposits are described. These occur mainly in slightly brackish salt-marsh sediments, especially in areas with strong fresh-water influence. Species succession within them is influenced
Processes governing marsh formation in a rapidly subsiding coastal environment
An accretionary budget is developed for Barataria Basin fresh, brackish-intermediate and salt marshes located along a salinity gradient extending inland from the coast. The mineral sediment and organic carbon requirement of individual marsh units
Asian part of Russia ; Brackishenvironment ; Geochemistry ; Hydrochemistry ; Lake ; Limnology ; Mineralization ; Salinisation ; Salt lake ; Water ; West Siberia
Coastal environment ; Coastal plain ; Delta ; Ecosystem ; Erosion control ; Hydraulic works ; Louisiana ; Mississippi ; Organic materials ; Sea level ; Subsidence ; Tidal marsh ; United States of America
Marsh soil accretion processes were examined at 12 locations in fresh and brackish marshes in Louisiana's northern Barataria Basin estuary. Sedimentation rates were determined by 137 Cs. Soil structure and accretion were controlled primarily
by organic matter accumulation rather than mineral sediment deposition with water and entrapped gases occupying the majority of the soil volume. Such organic-based fresh and brackish marsh soil are more fragile than mineral based marsh soils and are subject
[b1] Dep. of Oceanography and Coastal Sciences, School of the Coast and Environment, Louisiana State Univ., Baton Rouge, Etats-Unis
Archeological site ; Brackishenvironment ; C 14 dating ; Chronostratigraphy ; Coastline ; Geoarchaeology ; Greece ; Holocene ; Island ; Man-environment relations ; Marine environment ; Palaeo-environment ; Sea level
Chronostratigraphie ; Datation C 14 ; Evvoia ; Grèce ; Géoarchéologie ; Holocène ; Ile ; Milieu marin ; Milieu saumâtre ; Niveau marin ; Paléo-environnement ; Relation homme-environnement ; Site archéologique ; Trait de côte
. 2600-2400 cal. BC, which developed into a brackishenvironment from ca. 2600-2400 cal. BC to ca. 750 cal. BC due to the deltaic progradation of the nearby stream (Sarandapotamos River). From ca. 750 cal. BC onward, coastal swamps prevailed in the study
2 mm and LASER technique for particles below 2 mm) and loss-on-ignition. In addition, a series of 12 AMS radiocarbon dates define a reliable chronostratigraphy. Results suggest the presence of a fully marine environment from the early Holocene to ca
Brackishenvironment ; Coastal environment ; Environmental degradation ; Hydrochemistry ; Intertidal zone ; Massachusetts ; Model ; Salinity ; Tidal marsh ; United States of America ; Vegetation ; Water temperature
Dégradation de l'environnement ; Etats-Unis ; Hydrochimie ; Littoral ; Marais littoral ; Massachusetts ; Milieu saumâtre ; Modèle ; Salinité ; Température de l'eau ; Végétation ; Zone intertidale