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1-12 OF 12 RESULTS FOR
Belterra Brazil
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Journal Article
Palynological examination of the pollen pots of native stingless bees from the Lower Amazon region in Pará, Brazil
Journal: Palynology
Publisher: AASP -The Palynological Society
Published: 01 December 2013
Palynology (2013) 37 (2): 218–230.
... in two areas of the Brazilian Amazon, in the districts of Santarém and Belterra, Lower Amazon mesoregion of Pará, Brazil ( Figure 1 ). In Belterra [02°38′07″S, 54°55′53.2″W, 126 m above sea level (a.s.l.)], samples were collected monthly from the food pots of colonies of T. angustula (locally known...
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Image
(A) A map showing where Brazil (shaded in light grey) is located within Sou...
in Palynological examination of the pollen pots of native stingless bees from the Lower Amazon region in Pará, Brazil
> Palynology
Published: 01 December 2013
Figure 1 (A) A map showing where Brazil (shaded in light grey) is located within South America, and (B) a map showing the states of Brazil, and the location of the two sites studied (Belterra and Santarém). The states of Brazil that are considered the northern region are labelled.
Journal Article
GENESIS, MINERALOGY AND GEOCHEMISTRY OF KAOLIN DEPOSITS OF THE JARI RIVER, AMAPÁ STATE, BRAZIL
Journal: Clays and Clay Minerals
Publisher: Clay Minerals Society
Published: 01 August 2002
Clays and Clay Minerals (2002) 50 (4): 494–503.
... amounts of quartz, anatase, goethite and hematite. The field observations and the morphological analysis indicate the existence of sedimentary features throughout the whole profile except for the upper aluminous clayey layer (Belterra Clay). This is evidence that the Rio Jari kaolin deposit originated...
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Image
Seasonal distribution in the number of pollen types, Shannon-Weaver diversi...
in Palynological examination of the pollen pots of native stingless bees from the Lower Amazon region in Pará, Brazil
> Palynology
Published: 01 December 2013
Figure 2 Seasonal distribution in the number of pollen types, Shannon-Weaver diversity (H′) and Pielou’s evenness (J′) indexes among pollen samples obtained from pollen pots of Tetragonisca angustula in Belterra, Lower Amazon region, Pará State, Brazil.
Image
Areas studied in the Lower Amazon region, Pará State (PA), Brazil. Figure 1...
in Palynological examination of the pollen pots of native stingless bees from the Lower Amazon region in Pará, Brazil
> Palynology
Published: 01 December 2013
Plate 1 Areas studied in the Lower Amazon region, Pará State (PA), Brazil. Figure 1. Meliponary (stingless bee apiary) sited in the urban zone of Belterra. Figure 2. Hive of Tetragonisca angustula located at the Forest School, Santarém, PA. Figure 3. View from the Forest School in Santarém.
Image
Photographs of bauxite variability ( a – c ) and mining in Guinea ( d – f )...
in Compound criticality of bauxite production: implications for sustainability and trade neo-colonialism
> Geoenergy
Published: 22 July 2024
Fig. 3. Photographs of bauxite variability ( a – c ) and mining in Guinea ( d – f ). Bauxite samples are: ( a ) pisolitic bauxite from Les Baux, St. Remy de Provence, France – the type locality for karstic bauxite; ( b ) Belterra Clay Horizon, Lower Amazon Basin, Brazil; ( c ) lateritic bauxite
Journal Article
THE LATERITIC BAUXITE DEPOSIT OF RONDON DO PARÁ: A NEW GIANT DEPOSIT IN THE AMAZON REGION, NORTHERN BRAZIL
Journal: Economic Geology
Publisher: Society of Economic Geologists
Published: 01 August 2016
Economic Geology (2016) 111 (5): 1277–1290.
... 2 O 3 (available) in the world-renowned Amazon Province, northern Brazil. The mineral resource is part of a mature laterite profile and consists of reddish to mottled clay at the base that narrows upward to massive bauxite, followed by ferruginous bauxite, and is capped by an iron horizon (nodular...
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Journal Article
An application of the Rietveld refinement method to the mineralogy of a bauxite-bearing regolith in the Lower Amazon
Journal: Mineralogical Magazine
Published: 01 April 2018
Mineralogical Magazine (2018) 82 (2): 413–431.
... thermogravimetric results. For this investigation a profile in the bauxite-bearing regolith occurrence in the ALCOA bauxite mine at Juruti, Brazil was studied. The different minerals, their compositions and their low crystallinity in the different horizons were investigated and the contents determined...
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Image
Photomicrographs of some pollen types found in stingless bee pollen samples...
in Palynological examination of the pollen pots of native stingless bees from the Lower Amazon region in Pará, Brazil
> Palynology
Published: 01 December 2013
Plate 2 Photomicrographs of some pollen types found in stingless bee pollen samples from Belterra and Santarém, Lower Amazon region, Pará State, Brazil. Bars = 10 μ m. Figure 1. Bv , Borreria verticillata (Rubiaceae); By , Byrsonima (Malpighiaceae). Figure 2. By , Byrsonima
Journal Article
Measurement of apparent sintering activation energy for densification of clays
Journal: Clay Minerals
Published: 16 March 2022
Clay Minerals (2021) 56 (4): 299–305.
...: methodology. JMI: validation. TGM: investigation. AGDB: formal analysis, resources. AMB: visualization, resources. MP: supervision. The authors thank CAPES (Brazil) for the financial support of CAPES/Brazil process n. 88887.502321/2020-00 and CAPES/Brazil process n. 88887.356961/2019-00...
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Journal Article
Characterization and use of clays and argillites from the south of Santa Catarina State, Brazil, for the manufacture of clay ceramics
Journal: Clay Minerals
Published: 03 August 2020
Clay Minerals (2020) 55 (2): 172–183.
... of defective products, which in Brazil vary from 2 to 10% of total production, and in some cases may even exceed this larger amount. These losses relate to the physicochemical characteristics of the raw materials, the manufacturing technology and the quality-control processes adopted in the industry, among...
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Journal Article
Compound criticality of bauxite production: implications for sustainability and trade neo-colonialism
Journal: Geoenergy
Publisher: Geological Society of London
Published: 22 July 2024
Geoenergy (2024) 2 (1): geoenergy2023-054.
...Fig. 3. Photographs of bauxite variability ( a – c ) and mining in Guinea ( d – f ). Bauxite samples are: ( a ) pisolitic bauxite from Les Baux, St. Remy de Provence, France – the type locality for karstic bauxite; ( b ) Belterra Clay Horizon, Lower Amazon Basin, Brazil; ( c ) lateritic bauxite...
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