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
Development of a Late Quaternary marine terraced landscape during on-going tectonic contraction, Crescent City, coastal plain, California
California ; Coastal environment ; Coastal plain ; Fault ; Marine quaternary ; Marine terrace ; Pedogenesis ; Pleistocene ; Tectonics ; United States of America ; Vertical movement
The aim of this paper is to use marine terrace age and distribution to identify the pattern of the late Quaternary deformation in the Crescent City coastal plain. The AA. determined how many marine terraces make up the Crescent City coastal plain
, characterized the soils developed on their surfaces, investigated the cover stratigraphy and the buried bedrock topography underlying the terraces, and estimated terrace ages.
Rapid formation of river terraces in non-welded ignimbrite along the Hishida River, Kyushu, Japan
Fluvial processes ; Fluvial terrace ; Japan ; Kyushu ; Palaeogeography ; Quaternary ; Tephrochronology ; Volcanic rock
River terraces are well preserved in the middle to lower reaches of the Hishida River, that flows through the extensive ignimbrite field produced by the large-scale Ito eruption about 24,500 years ago from Aira caldera in southern Kyushu. High
erodibility of the non-welded Ito ignimbrite and absence of vegetation on the initial surface would have permitted a rapid dissection of the initial topography and the formation of the river terraces. Thus, it is interpreted that the river terraces were formed
Dating fluvial terraces with 10Be and 26Al profiles : application to the Wind River, Wyoming
Dating ; Fluvial terrace ; Fluvioglacial features ; Isotope dating ; Methodology ; Moraine ; Tephrochronology ; United States of America ; Wyoming
Dating depositional surfaces like terraces that are older than the range of 14C is difficult. The AA. employ a cosmogenic radionuclide (CRN) profile technique that addresses a major problem of CRN dating on such surfaces : nuclide inheritance
. By measuring 10Be and 26Al profiles, the AA. constrain the exposure age and the mean CRN inheritance for the deposit. Here they report their attempts to date terraces along the Wind River, which are inferred to reflect oscillation between glacial
Baja California Sur ; Fault ; Marine quaternary ; Marine terrace ; Mexico ; Plate tectonics ; Sea level ; Seismic hazard ; Vertical movement
the rate of uplift, the AA. examine the coastal uplift of the Loreto basin indicated by the altitudinal distribution of marine terraces. Evidence of Quaternary movement on the Loreto fault consists of morphologically young fault scarps and surfaces
such as fluvial terraces that are displaced by recurrent faulting.
Rates and patterns of tillage and water erosion on terraces and contour strips : evidence from caesium-137 measurements
This paper aims to contribute to an improved understanding of tillage erosion on terraces and contour strips by presenting both a methodology for using caesium-137 measurements for the quantitative assessment of medium-term tillage erosion
Cenozoic ; Erosion rate ; Honshu ; Japan ; Marine terrace ; Sandstone ; Sedimentary rock ; Tokyo ; Weathering
To examine temporal changes in rates of weathering of bedrock, weathering profiles were observed from the drill cores obtained at 24 sites on 3 levels of erosional marine terraces emerged in the period of 70 to 2,850 yrs B.P. in Boso Peninsula
, Japan. The bedrock of terraces consists mainly of Tertiary sandstone and mudstone. The mode of deceleration in the weathering rates with time differs between mudstone and sandstone. Initially mudstone weathers faster than sandstone, but the mudstone
Earthquake ; Fault ; Honshu ; Japan ; Marine terrace ; Seismicity ; Strike-slip fault ; Tectonics ; Vertical movement
the block boundaries. Comparison of the tilting obtained from levelling of benchmarks with the dated marine terraces on one fault block yields a recurrence period of the earthquake of approximately 500 years. The result is in harmony with historical records
Agricultural land use ; Land use ; Landslide ; Nepal ; Soil erosion ; Sustainable development ; Terrace ; Watershed
small, almost planar slumps on the risers of agricultural terraces. Thus the results indicate that landsliding is a significant contributor to overall denudation but that large-scale landsliding is not a major problem in the study area.
Braided channel ; Channel geometry ; Climatic variation ; Fluvial processes ; Fluvial terrace ; Geographical information system ; Lateglacial ; Meander ; Netherlands (The) ; Sediment budget ; Valley
Lateglacial (13-10 ka) terraces have been distinguished in the Maas valley. Using a geographical information system, it will be shown that the fluvial development of the Maas can be explained not only by climate-related external factors such as sediment
Cross section ; Cyclone ; Fluvial terrace ; Gully erosion ; Mass movement ; New Zealand ; North Island ; Precipitation ; Rainstorm ; Sediment budget ; Sediment load ; Stream ; Watershed
Sediment delivery ratios focused on the influence of storm-related sediment storage are measured at Matakonekone and Oil Springs tributaries of the Waipaoa River basin, east coast of New Zealand. The terrace deposits of both tributaries show
a brief summary of the most important observations made on the terrace sequences and structural features, the tectonic implications and a hypothetical field-based model are discussed.