Results 111 to 120 of about 18,588 (223)
Abstract For over a century, alluvial river terraces have been used as archives of tectonic deformation or changes in water discharge, sediment supply, and sea level. Despite this long history, such efforts remain challenging: using terraces as deformation markers requires knowledge of their initial geometry, and most attempts to attribute terrace ...
A. Ruby +4 more
wiley +1 more source
Floodplain environmental change during the younger dryas and holocene: Evidence from the lower kennet valley, south central England [PDF]
Many lowland rivers across northwest Europe exhibit broadly similar behavioural responses to glacial-interglacial transitions and landscape development. Difficulties exist in assessing these, largely because the evidence from many rivers remains limited
Collins, PEF +3 more
core
Scale-dependence of lithological control on topography: Bedrock channel geometry and catchment morphometry in western Scotland [PDF]
We propose that a scale-dependent topographic signature of erodibility arises due to fluvial and glacial erosion acting on different parts of the landscape at different times.
Bishop, P. +3 more
core +3 more sources
A Lithospheric Drip Triggered Green and Colorado River Integration
Abstract The integration of the Green and Colorado Rivers shifted the continental drainage divide of North America, marking a key event in the hydrological and biogeographical evolution of the continent. Sedimentological and stratigraphic evidence shows that for integration to occur, the Green River likely cut through the Uinta Mountains between 8 and ...
Adam G. G. Smith +4 more
wiley +1 more source
Fluvial terrace dating using in situ cosmogenic {sup 21}Ne
Through the analysis of cosmic-ray produced radio-genic and stable nuclide concentrations, specifically {sup 21}Ne, we hope to date certain geomorphic features located along the tributaries of the Colorado River in the Eastern Grand Canyon and the Rainbow Plateau located in Utah.
E Sexton, M Caffee
openaire +2 more sources
Abstract Long‐term rates of crustal uplift in southern Calabria and NE Sicily are incompletely understood due to limited information about the age of marine terraces at 1.0–1.3 km above sea level (asl). This study provides a new constraint on high‐elevation terrace ages through integrated analysis of geochronology, stratigraphy, shoreline modeling, and
Rebecca J. Dorsey +5 more
wiley +1 more source
New evidence on palaeoenvironmental conditions in SW Cameroon since the Late Pleistocene derived from alluvial sediments of the Ntem River [PDF]
An interior delta in the lower course of the Ntem River near the sub-prefecture Ma’an was identified after interpretation of satellite images, topographical maps of SW Cameroon and geological as well as hydrological references and a reconnaissance ...
Sangen, Mark
core
Abstract Recent earthquakes along the shallow portion of the Hikurangi subduction zone (the 2016 Kaikoura earthquake sequence, New Zealand) indicate that faults within the overriding plate of subduction zones may exhibit uncharacteristically large surface displacements relative to their fault length. Whether this style of upper‐plate faulting is common
K. A. McKenzie +3 more
wiley +1 more source
Soil genesis in a marine terrace sequence of Sicily, Italy
Knowledge about the rates of pedogenic processes is essential to understand landscape development and history. It can be attained by the quantitative investigation of soil chronosequences.
Stephen Wagner +3 more
doaj
Orthoptera insects (hereinafter – orthopterans) play a key role in grassland ecosystems and are often used as indicators of their condition. To conserve these insects and to model their habitat preferences, we need to know patterns of their distribution ...
Victor V. Aleksanov
doaj +1 more source

