Sentences with phrase «karara magnetite»

Radar Iron is to become a major shareholder in a Northern Queensland magnetite project in a move it hopes will enable progression of its Western Australian projects.

As miners deal with the reality of a prolonged slump in the iron ore price, Fortescue Metals Group is quietly going about the business of building the state's third magnetite mine and processing plant.

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.

China - based Citic Group has flagged a $ US1.4 billion to $ US1.8 billion impairment at its Sino Iron magnetite project in the Pilbara as a result of the falling value of iron ore.

Reminds me of your previous insightful analysis of Haematite vrs Magnetite iron ore projects - seems like a light year ago now, how things have changed!

PERTH - based Mineralogy Pty Ltd has entered into an agreement with Austeel Pty Ltd to provide access to 740 million tonnes of magnetite ore on attractive commercial terms.

Bees home in on brilliant ultraviolet patterns that we see as plain white daisies; pigeons can literally align themselves to magnetic north because of magnetite in their brains.

We believe Palabora has a solid future under an owner who can develop the magnetite business alongside the existing copper and vermiculite operations.

Palabora also owns a magnetite stockpile and the future of value creation at Palabora is likely to involve beneficiation of the magnetite through on - site processing, an activity that is outside Rio Tinto's strategic focus.

The meteorite is full of grains of an iron oxide mineral called magnetite, each grain a mere 20 to 120 nanometers across.

«A key question is whether this magnetite is a component of the original basalt or resulted from later processes, such as would happen in water - soaked basaltic sediments.

«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.

Tarduno's new results are based on the record of magnetic field strength fixed within magnetite found within zircon crystals collected from the Jack Hills of Western Australia.

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.

Within the smallest magnetite grains are regions that have their own individual magnetizations and work like a tape recorder.

«We do not believe it is too incautious to restate our original hypothesis that such magnetites constitute strong evidence of early life on Mars,» said lead author Kathie Thomas - Keprta at the time.

The fluid proposed by Ji - Ping Huang of Fudan University in Shanghai, China, and colleagues, contains tiny magnetite balls coated with a layer of silver, possibly with an additional polymer coating to keep them from clumping.

But in 2003 two papers noted that there are other ways to make magnetite crystals, such as slamming a rock from space onto the Martian surface.

Magnetospirillum cells contain a number of small particles of magnetite (Fe3O4), each approx. 45 nanometers wide.

The remarkable behaviour of platinum atoms on magnetite surfaces could lead to better catalysts.

They also spew a continuous stream of superheated water past iron - rich — and possibly catalytic — vent minerals, such as pyrrhotite and magnetite.

Another navigational tool: birds» beaks, which contain bits of magnetite, a mineral that may allow them to sense Earth's magnetic field.

The two platinum atoms must once again find separate places on the magnetite surface.

But on an atomic scale, it has remarkable properties: on magnetite, single metal atoms are held in place, or they can be made to move across the surface.

When one mobilized platinum atom finds another, they can form a bond — as long as both of them are being lifted up by carbon monoxide, diminishing the influence of the magnetite below.

On other surfaces, pair formation would be favoured, but magnetite does not allow that,» says Roland Bliem.

It sounds a bit like an unhappy love story: «Two platinum atoms would actually like to be together, but the magnetite surface keeps them apart,» says Roland Bliem (TU Wien).

Sometimes several metal atoms on magnetite form small clusters.

The researchers engineered nanoparticle complexes containing small amounts of ropivacaine and the iron oxide mineral magnetite.

The lifting process frees the atom from the tight grip of the magnetite, and together, the molecule and the platinum atom can start moving around randomly across the magnetite surface.

We can watch single atoms as they wander across the magnetite surface or bond with each other.

Further south, concentrations of magnetite give the Empire Mine tailings pond its bluish appearance.

When magnetite particles are exposed to an EMF, they start to vibrate.

In other species, including humans and homing pigeons, these cells have always been found to contain magnetite, a form of iron oxide.

At present, says Nigel Cridland of Britain's National Radiological Protection Board, the magnetite theory is «conjecture».

Scientists have hypothesized that magnetite, a form of iron that's the most magnetic of naturally occurring minerals, is the key ingredient in specialized cells that react to changes in magnetism.

They think the skill may be related to small particles of magnetite, an iron oxide, located in two masses of nerve tissue in the forward part of the lobsters» bodies.

Tarduno and his team wanted hard data on both the intensity and direction of the magnetic field, which are recorded and stored in minerals, such as magnetite, at the time they were formed.

Debate on how birds sense geomagnetic fields has largely revolved around magnetite particles found in various parts of their heads.

C, hot enough to erase the magnetic information stored in the magnetite and create a new record of the magnetic field strength and direction at the time of the burning.

They identified rings of magnetite (iron oxide) arranged around the sooty spheres in the same pattern as in frocks from a volcano on the island of Svalbard, Norway.

It is generally agreed that Mars's colour is the result of a black form of iron called magnetite oxidising into the reddish - orange form called haematite.

These temporarily magnetise the magnetite particles, now attached to carboxylic molecules, making them form long chains, joined at their «poles», which aggregate in clumps a millimetre or two across.

The researchers used the new nano - scale technique of Transmission Kikuchi Diffraction to discover rims of the iron oxide mineral magnetite just a few ten thousandths of a millimetre thick around sulphide minerals inside the diamonds.

First, the surface charge on a particle of magnetite (a form of iron oxide) depends on the pH of the solution surrounding it: below pH 6 it is positive, and above it is negative.

In the paper published this week, the magnetite particles in ALH84001 are analysed by geoscientists Ralph Harvey of Case Western Reserve University in Cleveland, Ohio, and Harry McSween of the University of Tennessee in Knoxville, working with John Bradley of MVA in Norcross, Georgia, a company which specialises in microscopic analysis.

The sewage has a naturally low pH, so the magnetite is positively charged and the negatively charged carboxylic molecules in the sewage stick to it.

Researchers have long known that migratory birds receive information about magnetic fields from a part of their upper beak called the magnetite receptor, which contains iron - based magnetic crystals.