Search Results - "Pereira, Vitor P"
-
1
The Radioactive Rare Metal Mineralization in the World-Class Sn-Nb-Ta-U-Th-REE-Deposit Madeira (Pitinga, Amazonas State, Brazil): With Special Reference to the Complex Alteration of Pyrochlore-Group Minerals
Published in Minerals (Basel) (01-09-2024)“…This study focuses on the relationship between U and pyrochlore in the world-class Sn-Nb-Ta (U, Th, REE, Li) Madeira deposit within the Pitinga mining district…”
Get full text
Journal Article -
2
Ralstonite renamed hydrokenoralstonite, coulsellite renamed fluornatrocoulsellite, and their incorporation into the pyrochlore supergroup
Published in Canadian mineralogist (01-01-2017)“…Ralstonite is renamed hydrokenoralstonite, ideally ∎2Al2F6(H2O). "Atroarite" and the "AHF" phase (hydrated aluminum hydroxy-fluoride, a "ralstonite-like…”
Get full text
Journal Article -
3
Morphological importance of coronary ostia in equine
Published in Anatomia, histologia, embryologia (01-09-2022)“…The position of the coronary ostia was investigated in 70 segments of the aorta from young adult crossbred horses. After fixation with a 4% buffered aqueous…”
Get full text
Journal Article -
4
The world-class Sn, Nb, Ta, F (Y, REE, Li) deposit and the massive cryolite associated with the albite-enriched facies of the Madeira A-type granite, Pitinga mining district, Amazonas State, Brazil
Published in Canadian mineralogist (01-12-2009)“…The Madeira deposit, in the Pitinga mining district, Amazonas State, Brazil, is associated with the A-type Madeira granite (∼1820 Ma), which is hosted by…”
Get full text
Journal Article -
5
Fluorine-rich xenotime from the world-class Madeira Nb-Ta-Sn deposit associated with the albite-enriched granite at Pitinga, Amazonia, Brazil
Published in Canadian mineralogist (01-12-2012)“…The Madeira deposit (Sn, Nb, Ta) at Pitinga, Amazonia, in Brazil, is associated with the albite-enriched facies of the A-type Madeira granite (approximately…”
Get full text
Journal Article -
6
Anisotropic self-organization of hybrid silica based xerogels containing bridged positively charged 1,4-diazoniabicycle[2.2.2]octane chloride group
Published in Journal of colloid and interface science (01-02-2008)“…Anisotropic self-organized hybrid silica based xerogels were obtained. The ordered structure was imposed by the double charged 1,4-diazoniabicycle[2.2.2]octane…”
Get full text
Journal Article -
7
Randomized trial of a photography‐aided behavioural intervention to reduce risk factors for caries and malocclusion in high‐risk infants
Published in International journal of dental hygiene (01-08-2022)“…Objective To assess the efficacy of a photography‐aided behavioural intervention in reducing risk factors for dental caries and malocclusion in high‐risk…”
Get full text
Journal Article -
8
Late sodic metasomatism evidences in bimodal volcanic rocks of the Acampamento Velho Alloformation, Neoproterozoic III, southern Brazil
Published in Anais da Academia Brasileira de Ciências (01-12-2007)“…A mineralogical study was carried out in mafic and felsic volcanic rocks of the Acampamento Velho Alloformation at Cerro do Bugio, Perau and Serra de Santa…”
Get full text
Journal Article -
9
Mineralogy and geochemistry of the Morro dos Seis Lagos siderite carbonatite, Amazonas, Brazil
Published in Lithos (01-05-2020)“…The Morro dos Seis Lagos niobium rare earth element, Ti-bearing lateritic deposit (Amazonas, Brazil) is derived from a primary siderite carbonatite. The…”
Get full text
Journal Article -
10
Geochemical study on fossil vertebrates from some specific Permian and Triassic beds of the Paraná Basin (Brazil): A preliminary approach
Published in Journal of South American earth sciences (01-10-2021)“…Access to the geochemical conditions of paleoenvironments is made through the analysis of the chemical composition of the hydroxyapatite of fossil bones. This…”
Get full text
Journal Article -
11
U-Pb zircon geochronologycal investigation on the Morro dos Seis Lagos Carbonatite Complex and associated Nb deposit (Amazonas, Brazil)
Published in Journal of South American earth sciences (01-12-2017)“…We present results of U-Pb dating (by MC-ICP-MS) of zircons from samples that cover all of the known lithotypes in the Seis Lagos Carbonatite Complex and…”
Get full text
Journal Article -
12
Invertebrate traces in pseudo–coprolites from the upper Cretaceous Marília Formation (Bauru Group), Minas Gerais State, Brazil
Published in Cretaceous research (01-01-2016)“…Pseudo–coprolites are inorganic structures often confused with fossil faeces. The absence of some diagnostic features, such as inclusions, coprofabrics, grain…”
Get full text
Journal Article