Results 61 to 70 of about 39,957 (227)

Visible and near infrared spectroscopy in soil science [PDF]

open access: yes, 2010
This chapter provides a review on the state of soil visible–near infrared (vis–NIR) spectroscopy. Our intention is for the review to serve as a source of up-to date information on the past and current role of vis–NIR spectroscopy in soil science.
Mouazen, Abdul Moune   +3 more
core   +1 more source

MULTISPECTRAL REMOTE SENSING TO DELINEATE THE DISTRIBUTION AREA OF SCANDIUM-BEARING MINERALS IN BAUXITE MINING SITES, WEST KALIMANTAN PROVINCE, INDONESIA

open access: yesRudarsko-geološko-naftni Zbornik, 2023
The rising demand for scandium led to massive exploration activities for its discovery from mining by-products. Therefore, this study attempts to delineate the distribution of scandium-bearing minerals in the surrounding bauxite mining area, Tayan ...
Rosmalia Dita Nugraheni   +7 more
doaj   +1 more source

Arianna's Palette: A Diagnostic Study of the Painting Walls of the Domus of Arianna in Pompeii

open access: yesArchaeometry, Volume 68, Issue 2, Page 261-273, April 2026.
ABSTRACT The House of Arianna, also known as the House of Colored Capitals, represents, with its 1700 m2 of floor space, one of the most majestic examples of a residence within the Pompeii archaeological site. The research developed within the project “Cultural Heritage Active Innovation for Sustainable Society—CHANGES” reports the outcomes of the ...
Maria Verde   +9 more
wiley   +1 more source

Mineralogy and textural impact on beneficiation of goethitic ore

open access: yesInternational Journal of Mining Science and Technology, 2017
The effect of mineralogy and texture on the beneficiation of goethitic ores from two different origins is highlighted. Sample A having 54.47% Fe with 8.57% loss of ignition (LOI) indicates the presence of vitreous and ochreous goethite, martite and ...
Shobhana Dey   +2 more
doaj   +1 more source

Effect of Environmental pH on Mineralization of Anaerobic Iron-Oxidizing Bacteria

open access: yesFrontiers in Microbiology, 2022
Freshwater lakes are often polluted with various heavy metals in the Anthropocene. The iron-oxidizing microorganisms and their mineralized products can coprecipitate with many heavy metals, including Al, Zn, Cu, Cd, and Cr.
Na Jiang   +13 more
doaj   +1 more source

Synthesis and characterisation of iron oxides: Effect of calcination temperature and their application as inorganic pigment

open access: yesColoration Technology, Volume 142, Issue 2, Page 222-235, April 2026.
Abstract This research aimed to investigate the effect of calcination temperature on the phase, morphological and optical properties of iron oxides: hematite (α‐Fe₂O₃), magnetite (Fe₃O₄) and goethite (α‐FeOOH), synthesised by co‐precipitation, aiming at their applications as pigments.
Felipe Leria Stefenon   +4 more
wiley   +1 more source

Exploring Terrestrial Lava Tubes as Martian Analogs (I): Multi‐Analytical Study of Mineralization Processes in Cueva del Vidrio, La Palma (Canary Islands)

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract The study of terrestrial lava tubes is essential for understanding geological processes occurring during volcanic activity on other planetary bodies, such as Mars. These processes lead to the formation of minerals analogous to those found on other planets.
F. Alberquilla   +10 more
wiley   +1 more source

Oxygen application to chloride leaching of complex sulfide ores [PDF]

open access: yes, 1987
The study investigates leaching of complex sulfide ores with simultaneous regeneration of the leaching solution and removal of dissolved iron to balance the iron concentration in the leaching process.
Chou, Kuo Tung
core  

Rethinking Seawater Mo Isotope Mass‐Balance and the Sedimentary Mo Record

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 3, March 2026.
Abstract A lingering misconception is that seawater 98Mo/95Mo ratios should have increased more or less linearly with the oxygenation of Earth's oceans. At the root of this hypothesis is the generalization that oxidizing marine sediments have a stronger affinity for lighter‐mass Mo isotopes than their reducing counterparts.
C. M. Ostrander, O. Dellwig
wiley   +1 more source

A study of sorption of cadmium by goethite in aqueous solution

open access: yesBulletin of the Chemical Society of Ethiopia, 2002
Investigation has been carried out on the potential of a locally sourced goethite for the removal of cadmium ion from aqueous solutions using batch equilibration technique. The maximum uptake of cadmium is 6.4  10-2 mg/g-goethite.
N. Salami, F.A. Adekola
doaj  

Home - About - Disclaimer - Privacy