Results 41 to 50 of about 56,332 (307)
MINERALOGICAL AND TEXTURAL EVOLUTION OF THE ECONOMIC MANGANESE MINERALIZATION IN WESTERN RHODOPE MASSIF, N GREECE [PDF]
, 1991 The western Rhodope massif contains a significant number of 'battery grade' Mn-oxide deposits which are best developed in the area near Kato Nevrokopi, Drama district, N. Greece.
Nimfopoulos, M K, Pattrick, R A D
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Archaeometry, EarlyView.ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi +2 more
wiley +1 more source
Bioleaching of pollymetallic sulphide concentrate using thermophilic bacteria [PDF]
Hemijska Industrija, 2014 An extreme thermophilic, iron-sulphur oxidising bacterial culture was isolated and adapted to tolerate high metal and solids concentrations at 70°C.
Vuković Milovan +4 more
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Community Justice Initiatives in the Galena District Court [PDF]
, 2014 This article examines a community outreach program in rural Alaska whereby an Alaska Court System judge uses restorative justice principles in village sentencing hearings.[Introduction] / Community Involvement / Restorative Community Outreach in the ...
May, Jeff D.
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Journal of the American Geriatrics Society, EarlyView.ABSTRACT Background The impact of vitamin D on fall incidence remains controversial. We studied the effect of 5 years of vitamin D3 supplementation on the risk of falls in a double‐blind, placebo‐controlled randomized trial with generally healthy, community‐dwelling men and women in Finland.
Toni Rikkonen +9 more
wiley +1 more source
Study of Galena Ore Powder Sintering and Its Microstructure
MetalsGalena is a natural mineral enriched with lead sulfide (PbS). It typically forms in hydrothermal veins associated with igneous rocks and can also occur as a gangue mineral in other ore deposits.
Bety S. Al-Saqarat +10 more
doaj +1 more source
Lead, zinc and copper mineralisation in basal Carboniferous sediments at Westwater, south Scotland [PDF]
, 1977 A zioneo f lead, zinc and copperm ineralisatioins developedo ver a minimum I of 4 km of strikeo f basal Carboniferoucse mentstoneg roup sedimentsa nd immediatelyu nderlyingB irrenswarkL avas atwestwater,n ear Laqholm in south Scotland.
Davies, A. +5 more
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Long‐Term Storage of Meteoric Water in the Variscan Basement: Stable Isotope Constraints (δD–δ18O)
Terra Nova, EarlyView.ABSTRACT F‐Ba‐Pb‐Zn (±Ag) deposits near the unconformity between the Armorican and Aquitaine basins formed by mixing surface waters and brines with fluid ascending from the basement. To better constrain the source of this fluid and the conditions of mixing, we analyzed the hydrogen (δDwater) and oxygen (δ18Owater) isotopic composition of water trapped ...
Loïc Bouat +2 more
wiley +1 more source
Yankuang ceshiThe weathering behavior of galena, as the main lead ore, directly affects the migration and fate of heavy metal Pb in the environment. Weathering environment and time both affect the weathering products of galena.
Binbin CHU +4 more
doaj +1 more source
Mineralogical characterization of Sn deposits from the Santa Fe District, Bolivia [PDF]
, 2015 The Sn-Zn-Pb-Ag Japo-Santa Fe-Morococala ore deposit is located in the Central Andean Belt province. The ore mineralization is hosted in a Paleozoic metasedimentary sequence and porphyritic Oligocene-Miocene igneous rocks. Ore minerals occur in veins and
Alfonso Abella, María Pura +4 more
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