نتایج جستجو برای: geomorphologic features

تعداد نتایج: 523769  

2008
G. Mas L. Bengochea L. C. Mas N. López

Two loud explosions accompanied by two successive big dark clouds that would have been 300 metres high, had taken place at El Humazo geothermal manifestation at February 2003. These explosions produced some important geomorphologic and structural changes that were registered in the geothermal area and its surroundings. Among these, it can be mentioned the reactivation of a geothermal manifestat...

2007
Elizabeth A. Barnes Mary E. Power Efi Foufoula-Georgiou Miki Hondzo William E. Dietrich

[1] We propose a methodology for upscaling biomass in a river using a combination of dimensional analysis and hydro-geomorphologic scaling laws. We first demonstrate the use of dimensional analysis for determining local scaling relationships between Nostoc biomass and hydrologic and geomorphic variables. We then combine these relationships with hydraulic geometry and streamflow scaling in order...

Journal: :Science 2008
M M Osterloo V E Hamilton J L Bandfield T D Glotch A M Baldridge P R Christensen L L Tornabene F S Anderson

Chlorides commonly precipitate during the evaporation of surface water or groundwater and during volcanic outgassing. Spectrally distinct surface deposits consistent with chloride-bearing materials have been identified and mapped using data from the 2001 Mars Odyssey Thermal Emission Imaging System. These deposits are found throughout regions of low albedo in the southern highlands of Mars. Geo...

Journal: :Environmental microbiology reports 2009
Samuel Dequiedt Jean Thioulouse Claudy Jolivet Nicolas P A Saby Mélanie Lelievre Pierre-Alain Maron Manuel P Martin Nicolas Chemidlin Prévost-Bouré Benoit Toutain Dominique Arrouays Philippe Lemanceau Lionel Ranjard

This study provides the first maps of variations in bacterial community structure on a broad scale based on genotyping of DNA extracts from 593 soils from four different regions of France (North, Brittany, South-East and Landes). Soils were obtained from the soil library of RMQS ('Réseau de Mesures de la Qualité des Sols' = French soil quality monitoring network). The relevance of a biogeograph...

One of the unique properties of northern landforms of zanjanrood catchment is having smooth surfaces that have been interrupted by deep valleys. Rivers that don’t have a wide catchment upper their front mount are running in parallel deep valleys that the topographical situations don’t let them to receive around surface runoffs. This situation has made them to move in parallel form and not to jo...

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