One of its subsidiaries, Reiss Viking, now owned by Quality Magnetite, LLC, is one of the largest suppliers of
magnetite for the coal industry.
The conclusion was that Martian microbes once used
magnetite for the same purpose as terrestrial ones do.
Not exact matches
Iron ore miner Gindalbie Metals has extended its finance facility
for its Karara
magnetite project in the Mid West by three years and an additional $ US400 million ($ 428 million).
A joint venture between Viento Group and indigenous - owned Kimberley Pipelines has been awarded a $ 9.8 million pipeline construction works contract
for the first stage of Fortescue Metals Group's North Star
magnetite project in the Pilbara..
Fortescue Metals Group has awarded Perth - based Intellect Systems, a subsidiary of Resource Development Group, a control and engineering services contract
for the first stage of its North Star
magnetite project in the Pilbara.
«Windjana has more
magnetite than previous samples we've analyzed,» said David Blake, principal investigator
for Curiosity's Chemistry and Mineralogy (CheMin) instrument at NASA's Ames Research Center, Moffett Field, California.
But in order
for today's magnetic intensity readings of the
magnetite to reveal the actual conditions of that era, the researchers needed to make sure the
magnetite within the zircon remained pristine from the time of formation.
«I know of no biogenic mechanism
for growing whiskers, and I don't know of any biogenic
magnetite that contains screw dislocations,» agrees Peter Buseck, a geochemist at Arizona State University in Tempe.
The two new papers, one published this week in Geochimica et Cosmochimica Acta, the other accepted
for publication in the same journal, provide nonbiological explanations
for the
magnetite particles and the PAHs.
An international research team has now studied this question
for the first time at ultra-high resolution on samples of
magnetite, the mineral dominating the magnetic properties in the earth's crust.
«It is only in a small part of naturally occurring
magnetite that magnetic structures known
for being very stable with respect to temperature fluctuations are found,» explains Dr. Trevor Almeida of Imperial College London.
But locating the cells that contain the 50 - nanometer particles has been like looking
for a needle in a haystack, in part because the tissue - dissolving methods used to identify
magnetite turn biological samples to mush.
Having shown that chemically modified
magnetite (Fe2CrO4) meets the basic criteria required
for an air stable, visible light photocatalyst, the investigators plan to carry out experiments in which they will transfer freshly grown Fe2CrO4 surfaces to a photoelectrochemical cell under a dry nitrogen atmosphere to avoid picking up surface carbon contamination.
Iron makes
for a stronger magnet, so the bacteria are very selective when they form their
magnetite compasses.
«They are looking
for a single event that can account
for all the
magnetite,» Thomas - Keprta says.
So - called magnetotactic bacteria create a chain of
magnetite grains to help orient themselves in their search
for nutrients.
This discovery not only shows the profound effects of pressure on magnetism, it also discloses,
for the first time, that pressure induced a spin - pairing transition in
magnetite that results in changes in the electron mobility and structure.
The
magnetite - mediated mechanism seems to act as part of a magnetic map - or signpost sense, which could provide the animal with information about its geographic position, whereas the vision - mediated magnetic sense seems to be a pure compass sense that is based on radical - pair processes in the birds» eye (s)[
for reviews], [see e.g. 8, 9].
Other design details bolster the luxury - class appearance
for the 2018 Legacy, including new high - contrast wheel designs and two rich new exterior colors,
Magnetite Gray Metallic and Crimson Red Pearl.
As far as paint and wheel options go, we'd go
for Magnetite Black Metallic (shown above) and the $ 500 black AMG wheels to complete the sleek look.