Results 41 to 50 of about 7,811 (229)
Geologica Carpathica, 2018 The S-type accessory mineral assemblage of zircon, monazite-(Ce), fluorapatite and tourmaline in the cupolas of Permian granites of the Gemeric Unit underwent compositional changes and increased variability and volume due to intensive volatile flux.
Broska Igor, Kubiš Michal
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Scientia Pharmaceutica, 2023 Many medicinal plants found in Africa, such as Dovyallis caffra, have been reported to contain various bioactive compounds, which have been found to reduce metal salts into their corresponding metal-based nanoparticles.
Jerry O. Adeyemi
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Archaeometry, Volume 68, Issue S1, Page S103-S115, April 2026.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
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Column Combined Flotation of Low Grade Tin Tailings
Kuangchan zonghe liyong, 2023 This is an essay in the field of mineral processing engineering. In order to make more efficient use of the resources in cassiterite tailings, we put forward the process flow of combined operation of flotation column and flotation machine on the basis of
Huijie Lin +6 more
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Mineralogy and Formation of a Platinum Placer Deposit, Southern South Island, New Zealand
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.Placer platinum group minerals (PGM), with subordinate detrital gold, have been concentrated in Pleistocene coastal sands near the present Foveaux Strait shoreline. This study characterises the PGM in what is New Zealand's only identified PGM deposit.
Marshall Palmer, Dave Craw
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Известия высших учебных заведений: Геология и разведка, 2019 The colloform tin ores from the deposit Verkhnee at the Primorye have been studied with the aid of X- ray spectroscopic microanalysis and the scanning electron microscopy with the energy dispersive analyzer LINK-ISIS that allowed revealing the primary ...
N. V. Gorelikova +2 more
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Frontiers in Earth Science, 2023 This study presents rock slab and thin section reflection mapping, element mapping by Micro-XRF (μ-XRF) analysis, and in situ cassiterite U-Pb laser ablation-inductively coupled plasma mass spectrometer (LA-ICP-MS) ages of the Xinlu Sn-Zn deposit ...
Chang-Hao Xiao +10 more
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The Occurences of Heavy Mineral Placer at Kendawangan and Its Surrounding, West Kalimantan Province [PDF]
, 2017 The main objective of this study is to identify and to determine the variation and content of heavy mineral placer of Kendawangan coastal, offshore and its surrounding area.
Setyanto, A. (Agus) +1 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.Abstract Characteristic remanent magnetizations isolated from the late Variscan Altenberg–Teplice Caldera exhibit paleomagnetic directions, ranging from those consistent with the expected primary Late Carboniferous geomagnetic field to intermediate directions that significantly diverge from the dipole states.
P. Vitouš +3 more
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ABOUT THE COMPOSITION OF CASSITERITE AND WOLFRAMITE IN ORES FROM THE FAR EAST DEPOSITS [PDF]
МинералогияThe paper presents formulas, which reflect the variations in the composition of cassiterite, wolframite (ferberite and hübnerite) and associated minerals (silicates, phosphates, tantaloniobates, sulfides, etc.) from the Maly Khingan tin deposits (Khingan
V.I. Popova, V.A. Popov, I.A. Blinov
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