Results 11 to 20 of about 795 (182)

Contrasting Effects of Phosphate on Arsenic Mobility and Human Exposure in Agricultural Soils. [PDF]

open access: yesGeohealth
Abstract Arsenic in agricultural soils may pose human health risks due to elevated concentrations and increased soil ingestion associated with dust generation. However, the actual exposure depends on the fraction of As that becomes bioaccessible under gastrointestinal conditions. This study evaluates As mobility, bioaccessibility, and associated health
Drahota P   +5 more
europepmc   +2 more sources

About the monograph “Collection and jewelry cassiterite”

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2021
Specialists of the Sergo Ordzhonikidze Russian State University for Geological Prospecting (MGRI), which had been training gemologists for many years, conducted an interesting and substantial study devoted to a non-traditional use of cassiterite, a ...
S. V. Belov
doaj   +1 more source

Morphological and compositional study of quartz and cassiterite of the Mocambo Granite, South Pará Tin Province, Amazonian Craton

open access: yesBrazilian Journal of Geology, 2020
Quartz and cassiterite crystals of granite, greisens, and quartz veins from Mocambo Granite, Carajás Province, were studied by scanning electron microscopy — cathodoluminescence and electron microprobe. Five types of quartz were identified: Qz1, magmatic
Rubem Santa Brígida Barros Neto   +3 more
doaj   +1 more source

Effect of Na2Co3 on the preparation of metallic tin from cassiterite roasted under strong reductive atmosphere [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2016
Tin is an indispensable metal in the modern industry. The current tin smelting processes, however, have the disadvantages of high smelting temperature, long smelting time, especially high tin loss ratio (>10 wt%).
Zhang Y.   +5 more
doaj   +1 more source

Spatial mapping of hydrothermal alterations and structural features for gold and cassiterite exploration

open access: yesScientific African, 2022
Mineral deposits show an intrinsic relationship with hydrothermal alteration and structures features which may be invaluable for regional scale exploration survey using spaceborne data.
Olusegun Omoniyi Ige   +4 more
doaj   +1 more source

Activation effect of Pb2+ in cassiterite flotation with styrene phosphonic acid as collector

open access: yes工程科学学报, 2019
Metal ions have a very important influence on the flotation process of minerals, and some of them can activate minerals and thus yield an improvement in the flotation effect.
LI Yan-jun   +3 more
doaj   +1 more source

Analysis of VLF-EM Data for Potential Cassiterite Mineralization Delineation Zone in Rafin-Bareda Area North-Western Nigeria [PDF]

open access: yesPhysics Access, 2022
VLF-EM geophysical technique was employed to delineate potential cassiterite mineralization at Rafin Bareda, Dutsen-Wai, Kubau Local Government area of Kaduna state, North Western, Nigeria.
Micah Adamu   +2 more
doaj   +1 more source

Annual Effective Dose Assessment of Radon in Drinking Water from Abandoned Tin and Cassiterite Mining Site in Oyun, Kwara State, Nigeria [PDF]

open access: yesPollution, 2022
Mining activities are generally known to enhance the concentration of primordial radionuclides in the environment thereby contributing immensely to human exposure to ionizing radiation of terrestrial origin. Thus, the abandoned Tin and Cassiterite mining
Muyiwa Michael Orosun   +7 more
doaj   +1 more source

The Efficiency of Mechanized Mineral Processing Techniques to Recover Tin and Tantalum Ores. Case Study: Nyamatete Concession, Rwanda

open access: yesGeoScience Engineering, 2022
Mining activities have resulted in a large volume of tailings containing a certain proportion of lost minerals, making them a potential reprocessing opportunity, and information on tailings and mineral reprocessing is often scarce.
Jules UWIZEYIMANA   +4 more
doaj   +1 more source

Benefits of cassiterite mining by artisanal miners in Jos Plateau, Nigeria

open access: yesBulletin of the National Research Centre, 2020
Background Artisanal mining of cassiterite is one tedious activity that is done daily. It involves daily extraction of economic mineral deposits through the use of primitive tools like shovel, digger, and spade.
Clinton Ebimobowei Ebikemefa
doaj   +1 more source

Home - About - Disclaimer - Privacy