Results 121 to 130 of about 42,907 (223)

CARACTERÍZACIÓN DEL SEDIMENTO DE UNA LAGUNA TROPICAL RASA

open access: yesCaldasia, 2004
ABSTRACT: The mechanical characteristics and the contents of organic matter, humidity, phosphorus and calcium of the sediments of the Parque Norte lake, a tropical and eutrophic shallow system, are presented. The sediment is adjusted to the organic type (half content of organic matter: 16.5%) characterized from the mechanical point of view as sandy ...
Ramírez Restrepo, John Jairo   +1 more
openaire   +3 more sources

Descarga de sedimentos en ríos grandes.

open access: yes, 1994
Se calculó la descarga total de sedimentos de ríos tropicales y no tropicales con base en datos de campo que abarcan un rango amplio de profundidades y velocidades de flujo, temperatura del agua y carga de sedimentos en ...
Nordin, Jr., Carl F.   +3 more
core  

Mikroelementu sadalījums Liepājas ezera sedimentos

open access: yes, 2015
Darbā novērtēts vairāku mikroelementu (Ti, Cr, Mn, Fe, Ni, Cu, Zn, As, Cd, Hg un Pb) sadalījums Liepājas ezera sedimentos. Telpiskais elementu sadalījums ir samērā heterogēns, kas norāda uz vairākiem iespējamiem mikroelementu izcelsmes avotiem. Sedimenti tika sadalīti frakcijās ar sekojošiem daļiņu izmēriem: 100 μm, 80 μm, 63 μm, 50 μm un
openaire   +1 more source

Preservación de diatomeas en sedimentos turbosos

open access: yes, 1998
[Abstract] This paper describes a comprehensive survey of the quality of diatom preservation in the recent sediment record from two close peatbogs but with different geomorphological features, Villaseca and La Mata (NW Spain). Twenty samples have been analysed from each core, focusing especially in the preservation of diatom frustules along the upper ...
openaire   +2 more sources

Detection of Toxoplasma gondii in water for human consumption from water wells (jagüeyes) in the rural area of the municipality of Sincelejo [PDF]

open access: yesBiomedica, 2021
Campo-Portacio DM   +4 more
europepmc   +1 more source

MICROFÁCIES DE SEDIMENTOS CLÁSTICOS

open access: yesRevista Brasileira de Geociências, 1974
openaire   +2 more sources

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