Geologia e gênese dos depósitos de manganês da provincia de Aracoiaba - Pacajús, Ceará
, 1983 The manganese deposits of Aracoiaba-Pacajus district are located in northeast of the State of Ceará, Brazil. The protore and the ore of some of the manganese deposits studied occur between belts of manganiferous rocks extending 60 by 15 km.
Ribeiro Filho, Evaristo +1 more
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The Use of UV-Visible Diffuse Reflectance Spectrophotometry for a Fast, Preliminary Authentication of Gemstones. [PDF]
Molecules, 2022 Aceto M +6 more
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Estudo mineralógico e textural dos minerais de manganês do depósito de Bandarra, Jacaraci, Bahia
, 1983 This paper discusses the mineralogy and the mineralogical and textural changes of the Bandarra manganese deposit which is located in the southern part of the State of Bahia.
Ribeiro Filho, Evaristo +1 more
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Investigation on the Usage of Some Non-Almandine Garnet Minerals as Abrasive Material in Waterjet Cutting [PDF]
, 2011 In this study, some non-almandine garnet minerals were investigated in terms of their usage possibilities as alternate abrasive materials in waterjet cutting operations. For this purpose, garnet samples were taken from various deposits and mineralization
Kulaksiz, Seyfi +2 more
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A Study of Sulfide Mineralization in the Meguma Group Sediments Gold Brook, Colchester County, Nova Scotia. [PDF]
, 1982 A preliminary study of representative drill core from the Gold Brook property (of Sulpetro Minerals Limited), Colchester County, Nova Scotia was undertaken, to describe the styles of strata-bound and vein-type mineralization hosted in metasediments of ...
Jenner, Kimberley A.
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Processes Controlling Magma Chamber Evolution Beneath Mt. Rainier, Washington
, 2009 Mt. Rainier is an active composite volcano located in the Cascade volcanic arc, ~90km southeast of Seattle, Washington. Based on a compilation of data representing basaltic andesites through dacites, thermodynamic simulations have been run to constrain ...
Scott, Sean Ross
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<報文>岩手県立川鉱山産球状クリプトメレーン鉱について [PDF]
, 2010 application/pdfThe bedded manganese ore deposits at Tachikawa Mine, Iwate Prefecture, occur in the chert of palaeozoic age. In the upper zone of the deposits, the ore consists of yokosukaite, pyrolusite, todorokite and cryptomelane, but in the lower zone,
南部, 松夫 +2 more
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Prospecção magnetométrica de depósitos óxido-silicáticos de manganês com jacobsita, no Ceará
, 1983 Jacobsita occurs in metamorphic oxide-silicatic manganese protore in Itacima, in the manganese district of Pacatuba, Ceara, Brazil. Precambriam gneisses and schists are the host rocks of the lenses of the manganese protore which was weathered at the ...
Ribeiro Filho, Evaristo +1 more
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The study of GMA welds with different cover gas compositions on HSLA-100 steel [PDF]
, 1993 The purpose of this study was to investigate the effect of varying cover gas compositions on the microstructure and mechanical properties of single run gas-metal arc welds (GMAW) on HSLA-100 plate and seven different cover gas compositions containing ...
Seraiva, Ricky Arthur.
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Beneficiation of low-grade garnet from guda area Ajmer
, 1961 Five sample of garnet from guda area Ajmer were received from the director of mines and geology government of rajasthan to investigate the possibility of beneficiating them for use in abrasive manufacture.
Mathur, G P +2 more
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