Results 101 to 110 of about 43,419 (259)

The Fluvial Battering Ram: Collisional Experiments Reveal the Importance of Particle Impact Energies on Bedrock Erosional Efficiency

Geophysical Research Letters
The battering of bedrock by bedload collisions is the primary mechanism by which bedrock rivers erode and landscapes evolve. The energy imparted via impacts acts to detach bedrock via the growth and intersection of surface fractures.
C. C. Masteller, H. Chandler, J. Bower
doaj   +1 more source

FLUVIAL PROCESSES IN ATTACHMENT BARS IN THE UPPER PARANÁ RIVER, BRAZIL

Revista Brasileira de Geomorfologia, 2017
Bars are semi-submerged fluvial forms associated with the availability of sediments and a temporal dynamic, whose dimensions are controlled by the flow and depth of the channel.
Vanessa Cristina Dos Santos, José Cândido Stevaux, Mario Luis Assine   +2 more
doaj   +1 more source

Hydromorphological classification of Slovenian rivers [PDF]

, 2010
This paper provides an overview of hydromorphological and related classifications of rivers in Slovenia and elsewhere. The Rosgen classification is presented in greater detail; it was used in the study as the basis for developing the first Slovenian ...
Bizjak, Aleš, Mah, Petra Repnik, Mikoš, Matjaž   +2 more
core   +3 more sources

Palaeolandscape reconstruction of a shallow coastal embayment in Kattegat, Denmark—influence of sea‐level changes during the latest Pleistocene and Holocene

Boreas, EarlyView.
We analyse the geological processes of a coastal embayment in the Kattegat. Using high‐resolution seismic data and sediment cores, we describe a geological evolution from glacial to shallow marine stages with a variety of preserved facies from different depositional settings, including glacio‐lacustrine, telmatic, limnic and coastal environments.
Katrine Juul Andresen, Lars Ole Boldreel, Ole Bennike, Christof Pearce, Mikkel Fruergaard, Verner Brandbyge Ernstsen, Aart Kroon, Nicole Rita Posth, Marit‐Solveig Seidenkrantz   +8 more
wiley   +1 more source

Integrated methodology for assessing the effects of geomorphological river restoration on fish habitat and riparian vegetation

, 2011
Changes in the geomorphology of rivers have serious repercussions, causing losses in the dynamics and naturalness of their forms, going in many cases, from a type of meandering channel, with constant erosion and sedimentation processes, to a channelized ...
García de Jalón Lastra, Diego, Gonzalez del Tanago del Rio, Marta, Marchamalo Sacristán, Miguel, Maroto, Judit, Martínez Marín, Rubén   +4 more
core  

Sediment and particulate carbon removal by pipe erosion increase over time in blanket peatlands as a consequence of land drainage [PDF]

, 2006
Land drainage is common in peatlands. Artificially drained blanket peat catchments have been shown to have a significantly greater soil pipe density than intact catchments.
Bol, Bowler, Carey, Dawson, Dawson, DeMars, Eggelsmann, Elsenbeer, Evans, Francis, Gilman, Gutierrez, Holden, Holden, Holden, Holden, Holden, Holden, Holden, Hutchinson, Jones, Jones, Jones, Jones, Joseph Holden, Labadz, Mark, Mayfield, Nieber, Norrstrom, Roberge, Tallis, Tallis, Terajima, Tsuboyama, Turetsky, Turunen, Uchida, Warburton, Worrall   +39 more
core   +1 more source

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

Boreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest, Neda Rahimzadeh, Debra Colarossi, Falko Malis, Tobias Lauer, Wera Sander‐Beuermann, Yvonne Spychala, Christian Brandes, Runa Fälber, Sumiko Tsukamoto, Jutta Winsemann   +10 more
wiley   +1 more source

Liquid filled canyons on Titan [PDF]

, 2016
In May 2013 the Cassini RADAR altimeter observed channels in Vid Flumina, a drainage network connected to Titan’s second largest hydrocarbon sea, Ligeia Mare. Analysis of these altimeter echoes shows that the channels are located in deep (up to ~570 m),
Birch, S. P. D., Grima, C., Hayes, A. G., Hofgartner, J. D., Lorenz, R., Mastrogiuseppe, Marco, Poggiali, Valerio, Seu, Roberto   +7 more
core   +1 more source

Droughts and human impact in the ancient Uaymil region of the Maya lowlands inferred from a 2800‐year sedimentary archive at Lake Kaná, Mexico

Boreas, EarlyView.
The relationship between the climate and societal transformation in Maya lowlands has long been debated, particularly the role of drought in shaping the civilization trajectory during the Classic Period. A high‐resolution, multi‐proxy, geochemical record from Lake Kaná, located in the underexplored Uaymil region of the Yucatán Peninsula in Mexico ...
Haydar B. Martinez‐Dyrzo, Priyadarsi D. Roy, Benjamin Gwinneth, Irma G. Vargas‐Martinez, Alejandro A. Aragon‐Moreno, Roger Medina‐Gonzales   +5 more
wiley   +1 more source

The sensitivity of landscape evolution models to spatial and temporal rainfall resolution [PDF]

, 2016
© Author(s) 2016. Climate is one of the main drivers for landscape evolution models (LEMs), yet its representation is often basic with values averaged over long time periods and frequently lumped to the same value for the whole basin. Clearly, this hides
Coulthard, Tom J., Skinner, Christopher J.   +1 more
core   +2 more sources