Results 191 to 200 of about 41,039 (215)
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Geoelectricals surveying in aluvional sediments of Madeira River (Porto Velho/RO)
12th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 15–18 August 2011, 2011The construction of two hydroelectric dams in Madeira River, near to Porto Velho city, will force the dredges, which explore residual gold in the stream bed, to change the location. The purpose of this work was to identify the auriferous conglomerate from Mucururu Formation using geophysical studies.
Luiz Gustavo Rodrigues Pinto +3 more
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Trace metals in fluvial sediments of the Madeira River watershed, Amazon, Brazil☆
Science of The Total Environment, 1990Abstract Sediment samples from 10 rivers of the Madeira River watershed, Amazon, were analyzed for major and trace element composition. Differences among river classes (white, clear and black water) were detected, in particular regarding the organic matter content, the concentration of bioelements, and the trace metals Fe, Mn, Cu and Zn.
L LACERDA +4 more
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CAUSES AND CONSEQUENCES of the 2014 FLOOD on the MADEIRA RIVER
2017In this study, we present an application of altimetry for the evaluation of the upstream impact of a dam reservoir. In 2014, the Brazilian Madeira river and some of its tributary flowing in Bolivia experienced a major flood, from the city of Porto Velho (Brazil), upstream.
ALVES DAMASCENO, Jossandra +4 more
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The Madeira waterway is one of the most important transport routes within the Amazon Forest, known as the Northern Logistics Corridor. It is also the second most significant waterway in the North, second only to the Amazon waterway, of which it is a major right-bank tributary.
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Fish Consumption, Fish Lore, and Mercury Pollution—Risk Communication for the Madeira River People
Environmental Research, 2000Fish is an important food resource in Amazonian aquatic ecosystems. There is a strong cultural background regarding fish consumption (fish lore) among indigenous people in the Amazon. Mercury (Hg) ingestion through fish consumption has been a major route of Hg exposure among the riverside people along the Upper Madeira River.
A A, Boischio, D, Henshel
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Caboclo Horticulture and Amazonian Dark Earths along the Middle Madeira River, Brazil
Human Ecology, 2010This article examines the relationship between Amazonian Dark Earths (ADE) and Caboclo horticultural knowledge and practice along the middle Madeira River (the biggest whitewater tributary of the Amazon) in the municipality of Manicore, Amazonas State, Brazil.
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Environmental Monitoring and Assessment, 1994
The degree and distribution of mercury (Hg) accumulation in sediment and fish from a tributary affected by alluvial small-scale gold mining in the Madeira River/Amazon is studied, in relation to a reference site. The results obtained so far agree well with previous studies and confirm that a tremendous contamination of main food web compartments occurs
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The degree and distribution of mercury (Hg) accumulation in sediment and fish from a tributary affected by alluvial small-scale gold mining in the Madeira River/Amazon is studied, in relation to a reference site. The results obtained so far agree well with previous studies and confirm that a tremendous contamination of main food web compartments occurs
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Abundance of the Bolivian River Dolphin (Inia boliviensis) in Mamore River, Upper Madeira Basin
Aquatic Mammals, 2016Luis Guizada, Enzo Aliaga-Rossel
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Designs of River Training Structures to improve Navigation Reliability on the Madeira River
11° SEMINÁRIO INTERNACIONAL DE TRANSPORTE E DESENVOLVIMENTO HIDROVIÁRIO INTERIOR, 2019Calvin Creech, Renato Souza
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Sediment Monitoring and Modelling for a Hydropower Reservoir, Madeira River
IAHR World Congress, 2013Leonardo Zandonadi Moura +4 more
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