Results 11 to 20 of about 120,352 (308)

Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources

open access: yesMetals, 2017
Metals with an average crustal abundance of <0.01 ppm, which are high in supply shortage due to soaring demand, can, under the excessive environmental risk and <1% recycling rate of their production, be termed as ‘critical’ in a limited geo ...
Sadia Ilyas   +4 more
doaj   +1 more source

A Data Driven Approach to Investigate the Chemical Variability of Clinopyroxenes From the 2014–2015 Holuhraun–Bárdarbunga Eruption (Iceland)

open access: yesFrontiers in Earth Science, 2020
The Holuhraun–Bárdarbunga (Iceland) eruption lasted approximately 6 months. Magma propagated laterally through a 40 km long dyke, while Bárdarbunga caldera was collapsing.
Luca Caricchi   +6 more
doaj   +1 more source

Pierre-Jean Robiquet

open access: yesEducación Química, 2018
Pierre-Jean Robiquet (1780-1840), a French pharmacist, made important contributions in the areas of mineral chemistry, mineral and vegetable pigments, and extractive and analytical chemistry.
Jaime Wisniak
doaj   +1 more source

Oxidative Phosphorus Chemistry Perturbed by Minerals [PDF]

open access: yesLife, 2022
Life is a complex, open chemical system that must be supported with energy inputs. If one fathoms how simple early life must have been, the complexity of modern-day life is staggering by comparison. A minimally complex system that could plausibly provide pyrophosphates for early life could be the oxidation of reduced phosphorus sources such as ...
Arthur Omran   +3 more
openaire   +4 more sources

Advances on Exploration Indicators of Mineral VNIR-SWIR Spectroscopy and Chemistry: A Review

open access: yes, 2022
Establishing exploration vectors to infer the properties of ore-forming fluids, locate blind ore bodies with the aid of visible to near-infrared (VNIR) and short-wave infrared (SWIR) spectroscopy, and infer the chemistry of minerals, is a new research ...
Jiandong Sun   +7 more
core   +1 more source

Mineral maturity and crystallinity index are distinct characteristics of bone mineral [PDF]

open access: yes, 2010
The purpose of this study was to test the hypothesis that mineral maturity and crystallinity index are two different characteristics of bone mineral. To this end, Fourier transform infrared microspectroscopy (FTIRM) was used.
Delmas, Pierre D.   +5 more
core   +1 more source

Structure and properties of lithium niobate ceramics produced from the batch of various genesis [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
The paper compares the structure, mechanical and electrical properties of ceramics obtained on the basis of highly disperse monophasic lithium niobate powders synthesized by various ways.
M.N. Palatnikov   +5 more
doaj   +1 more source

Extraction of Rare Earth Metals by Solid-Phase Extractants from Phosphoric Acid Solution

open access: yesMetals, 2021
Nowadays, solving the problem of rational, integrated use of the mined raw materials, the transition to waste-free technologies for its processing is a crucial task.
Olga Cheremisina   +4 more
doaj   +1 more source

Phosphorus mineral evolution and prebiotic chemistry: from minerals to microbes [PDF]

open access: yesEarth-Science Reviews, 2021
Minerals are known to control the availability of non-volatile and bio-essential elements at Earth’s surface, e.g., phosphorus (P). Therefore, the role of minerals in prebiotic chemistry is a focal point of research into the origins of life. However, the mineralogical diversity of earliest Earth is not definitively known.
Craig Walton   +9 more
openaire   +3 more sources

Current Techniques and Applications of Mineral Chemistry to Mineral Exploration; Examples from Glaciated Terrain: A Review

open access: yes, 2021
This paper provides a summary of traditional, current, and developing exploration techniques using indicator minerals derived from glacial sediments, with a focus on Canadian case studies.
Daniel Layton-Matthews   +1 more
core   +1 more source

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