10 LIVRES EN ANGLAIS EN RAPPORT AVEC «JAROSITE»
Découvrez l'usage de
jarosite dans la sélection bibliographique suivante. Des livres en rapport avec
jarosite et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Ancient Lake Creede: Its Volcano-tectonic Setting, History ...
roughly 1 20 m. Alunite and jarosite undoubtedly also occur in the oxidized
portions of other veins in the Creede district, but were not collected. A few
samples were collected from dumps, and their former locations can only be
inferred. Alunite ...
Philip Martin Bethke, Richard LeRoy Hay, 2000
Products from Oxidation and Neutralization Some of the major products from
pyrite oxidation and neutralization, in addition to sulfuric acid, include jarosite,
iron oxides, and sulfates. Most of the sulfate is leached out of the soil, but some ...
Stephen A. Norton, S.E. Lindberg, A.L. Page, 1990
3
Non-ferrous Metals in the New Millenium
zinc winning industry. Jarosite, goethite or hematite precipitated from the leached
solution, contains considerable amount of toxic metals like Zn, Pb, Cd, As etc.
and considered as a hazardous waste. Analyses of typical samples of jarosite
and ...
4
Soil Micromorphology: A Basic and Applied Science
Some evidence indicates that Fe "oxides" form first and that these are
subsequently covered over by jarosite as the pH drops to low values (<4). This
evidence is primarily the observation that in the deeper horizons, where the pH is
nearer ...
5
Sedimentary Geology at Meridiani Planum, Mars
As Fe3+ is increased, mixed-valence Fe sulfates increase in small amounts and
the amount of jarosite (K and H3O only) increases substantially to a maximum of
36 wt.%. Natrojarosite precipitates in very few calculations, which is likely a ...
Steven W. Squyres, Andrew H. Knoll, 2005
6
The geology and ore deposits of Goldfield, Nevada
JAROSITE. The mineral jarosite is closely related, chemically and
crystallographically, with alunite. The formula of jarosite proper is KJO.3FeaO3.
4SO4.6HJOT or K2[Fe(OH)J0[SOJ4 and the crystallization, like that of alunite, is
rhombohedral.
Frederick Leslie Ransome, William Harvey Emmons, George H. Garrey, 1909
7
Professional paper - United States Geological Survey
The mineral jarosite is closely related, chemically and crystallographically, with
alunite. The formula of jarosite proper is K2O.3Fe2O3.4SO4.6H20 or K,[Fe(OH),]6
[SOJ, and the crystallization, like that of alunite, is rhombohedral. As Hillebrand ...
Geological Survey (U.S.), 1909
8
United States Geological Survey Professional Paper
The large silicified zones capping Preble Mountain and many of the smaller
zones in the belt extending 3 km to the east are locally fractured and brecciated,
with aggregates of alunite and jarosite, instead of the usual limonite, filling the
open ...
9
Mineral Biotechnology 2002
They observed that though jarosite was formed in the solution but leaching rate
was higher in the presence of silver. It was assumed that the nature of jarosite
was changed in the presence of silver in the solution. The dissolution of
chalcopyrite ...
"Fe3* diffusion from jarosite to alkaline fly ash Figure 6 shows 59Fe3* diffusion
profiles in a combined jarosite and alkaline fly ash layered system. Our principal
results, as can be seen in Figure 6, are: firstly, 59Fe3* tracer accumulation at the
...
10 ACTUALITÉS CONTENANT LE TERME «JAROSITE»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
jarosite est employé dans le contexte des actualités suivantes.
Teuton Resources Corp. : ANNOUNCES SIX PROPERTIES …
On Teuton's Tuck property located south of the King Tut, meltback of snow and ice in 2014 exposed a new altered zone of jarosite-stained ... «GlobeNewswire, mai 15»
Mars rover studies curious mineral deposits
#The second has more jarosite, an oxidized mineral containing iron and sulfur ... very little hematite, and less jarosite than the second sample. «Walla Walla Union-Bulletin, avril 15»
Curiosity trova jarosite su Marte, un minerale contenente ferro e zolfo
Ciò che è emerso è una maggior presenza di jarosite rispetto ai materiali prelevati dalla zona di Confidence Hills, dove Curiosity è arrivato nel ... «Centro Meteo Italiano, avril 15»
NASA's Curiosity rover spots tasty-looking mineral veins on Mars
The second, “Mojave,” had the most jarosite, an oxidized mineral containing iron and sulfur that forms in acidic conditions. A third site ... «Nature World Report, avril 15»
Tricksy Mars may be Obscuring Signs of Organic Matter
However, a new study suggests that a mineral - called jarosite, an iron sulfate - that would form readily in these potentially life-supporting ... «Scientific American, févr 15»
Best of Last Week – Observing Higgs analogue in superconductors …
... organic compounds and noted the implications it has for the Mars Curiosity mission—when flash-heated jarosite breaks down organic matter, ... «Phys.Org, févr 15»
Curiosity May Cause Evidence of Mars Life to Self-Destruct
One of the compounds the rover is on the lookout for is jarosite, a mineral associated with conditions potentially suitable for life. Curiosity tests ... «NBCNews.com, févr 15»
Curiosity update, sols 864-895: Drilling at Pink Cliffs
Very early results from CheMin show evidence for the mineral jarosite, which suggests a more acidic watery environment than the rover has ... «The Planetary Society, févr 15»
WIRED Awake: 10 must-read articles for 20 February
A new study shows that heating the mineral jarosite breaks up organics before we can even see them. The research puts in doubt our ability to ... «Wired.co.uk, févr 15»
Scientists identify mineral that destroys organic compounds, with …
Scientists have discovered that the mineral jarosite breaks down organic compounds when it is flash-heated, with implications for Mars ... «Phys.Org, févr 15»
