Results 71 to 80 of about 21,819 (231)

Produção de água e sedimentos em bacia representativa do semiárido pernambucano Production or water and sediments in a se basin representative of Pernambuco

Revista Brasileira de Engenharia Agrícola e Ambiental, 2011
A erosão hídrica é um dos principais processos responsáveis pela degradação física dos solos, em particular em áreas semiáridas, susceptíveis a chuvas de alta intensidade e com limitada cobertura vegetal, principalmente nos períodos secos.
Valdemir P Silva Jr, Abelardo A. A Montenegro, Tatiana P. N Silva, Sergio M. S Guerra, Eduardo S Santos   +4 more
doaj   +1 more source

A talus rock glacier in Nantlle Valley, North Wales

Journal of Quaternary Science, EarlyView.
ABSTRACT Landforms comprising mixtures of fine and coarse sediment and deposited during late glacial times are ubiquitous in the British mountains. In many cases, their interpretation has often proved contentious; as a result, the non‐generic term discrete debris accumulations (DDA) has been used to describe them and, over the last 50 years, some have ...
Stephan Harrison, Ed Anderson
wiley   +1 more source

Responses of primary producers, anoxia, and chemical feedback to Late Glacial climate change: Insights from a paired lake approach

Journal of Quaternary Science, EarlyView.
Abstract Worldwide, lacustrine ecosystems are threatened by eutrophication and deoxygenation. Both processes are driven by the combined effects of human activities and climate change. Understanding the pre‐anthropogenic nexus between warming, eutrophication, deoxygenation, and related feedback is essential to determine how lakes respond to rapid ...
Noé R.M.M. Schmidhauser, Stan J. Schouten, Petra Zahajská, Andrea Lami, Jacqueline F.N. van Leeuwen, Rik Tjallingii, Hendrik Vogel, Martin Grosjean   +7 more
wiley   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

The tide-influenced Pétervására sandstone, early Miocene, Northern Hungary : sedimentology, palaeogeography and basin development [PDF]

, 1994
The objectives of this thesis are: - to determine the main sedimentary units, the dominant depositional processes, and to reconstruct the depositional environment of the Lower Miocene Petervasara Sandstone (Chapter 3), - to show the pattern of ...
Sedimentology, Sztanó, O., IVAU: Instituut voor Aardwetenschappen Utrecht   +2 more
core   +1 more source

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

Journal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon, Jonathan J. Tyler, Patricia S. Gadd, Quan Hua   +3 more
wiley   +1 more source

Formations quaternaires et néotectonique dans le bassin de l'Orbieu (Aude, France)

Physio-Géo, 2013
A geomorphological and sedimentological analysis makes it possible to identify the different Quaternary formations in the Orbieu valley. Then, the reconstruction of the longitudinal and transversal profiles shows the evolution of tectonic deformations ...
Jean-Pierre Larue
doaj   +1 more source

Teaching sedimentology: opportunities for interdisciplinary, variety, innovation and employability.

, 2015
The breadth of content and skills embodied by the subject of sedimentology provides the opportunity teach in multiple learning environments, engage in innovative teaching practice and embed employability skills.
Suthren, Roger, Satterfield, Dorothy, Whiteley, Martin, Davies-Vollum, S.   +3 more
core  

Sedimentology

, 2019
Dataset related to sediment size and sorting information sampled adjacent to the Nephrops norvegicus fishing grounds, to enable ground-truthing of acoustic seabed bottom ...
Mark P. Johnson (337999), Alina M. Wieczorek (5803277), Jan A. Freund (5803259), Conor Graham (6319762), Jack P.J. O’Carroll (5803274), Patricia Browne (5803268), Anne Marie Power (641471), Julian Merder (5803271), Liam Fullbrook (5803265), Robert J. Kennedy (2350147)   +9 more
core   +1 more source

Review of the Salpausselkä ice‐marginal formations in Finland

Journal of Quaternary Science, EarlyView.
ABSTRACT Extensive Salpausselkä ice‐marginal formations were deposited in southern and eastern Finland during the Weichselian deglaciation. These comprise three major ridges (I, II, and III Salpausselkäs) and their eastern counterparts (Tuupovaara, Koitere, and Pielisjärvi), together forming laterally continuous ice‐marginal formations extending ...
Jukka‐Pekka Palmu, Jussi Hovikoski, Reijo Pitkäranta, Antti E. K. Ojala   +3 more
wiley   +1 more source