Sentences with phrase «of magnetic minerals»

There were two primary characteristics the researchers used to hone in on the origins of Devils Tower: the shape of its distinctive columns and the alignment of magnetic minerals within them.

The concentration of these magnetic minerals is enhanced with increasing rainfall and can be used as a record of past precipitation history.

One group argues that tiny crystals of a magnetic mineral known as magnetite, which is found in the brains of some birds and in bacteria, are key.

Not exact matches

Ore containing Li2O is fed into the processing plants which upgrade the lithium mineral, using gravity, heavy media, flotation and magnetic processes, into a range of lithium concentrates for bulk or bagged shipment.

As the molten rock solidified, the minerals preserved a record of Earth's polarity, the direction its north and south magnetic poles pointed at the time.

(When rocks form, their magnetic minerals line up with Earth's field, and that orientation is preserved when the rocks solidify, providing geophysicists with a record, written in stone, of the planet's magnetic past.)

«When you burn clay at very high temperatures, you actually stabilize the magnetic minerals, and when they cool from these very high temperatures, they lock in a record of the Earth's magnetic field,» Tarduno says.

Uniquely spherical magnetic minerals wafted over the world by coal burning can be found from peat bogs to lake sediments and may furnish a record of this carbon combustion for future geologists.

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

The probe is gathering data on the mineral and chemical composition of Mercury's surface, its magnetic field, its surface topography and its interactions with the solar wind.

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.

The spin wave circuit that the researchers built, consists of a 200 nanometre thin layer of yttrium iron garnet (a mineral and magnetic insulator, YIG in short), with a conducting platinum strip on top of that on both sides.

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.

A team of researchers has for the first time recovered a magnetic field record from ancient minerals for Iron Age southern Africa (between 1000 and 1500 AD).

As stalagmites grow, they incorporate trace amounts of naturally occurring magnetic minerals, primarily from soils overlying the cave.

Researchers measured the magnetic properties of layered stalagmites, or columnar mineral deposits formed in caves by the growth of carbonate minerals from dripping groundwater.

These iron - rich minerals are far less than the width of human hair in size, but produce a strong magnetic signal that can be easily measured by modern magnetometers.

The mineral has already been found in some bacteria, and in the noses of fish like salmon and rainbow trout, which also seem to track the Earth's magnetic field as they migrate.

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.

Scientists in the area of paleomagnetism use magnetic minerals to investigate the history of the earth's magnetic field and its formation from molten metal flowing within the earth's core, the so - called geodynamo.

Certain minerals in rocks can preserve a record of the direction of Earth's magnetic field when the rock formed.

Near the base the tiny, needle - shaped magnetic minerals within the rock are generally close to vertical, the result of the direction the magma flowed before it solidified.

They found a total of 500 cosmic dust grains, which contain magnetic minerals.

To more sharply define the time period of the tools, Lepre and co-author and Lamont - Doherty colleague Dennis Kent examined magnetic minerals beneath, around and above the spots where the tools were found.

In that portion of the plaster models the orientation of the magnetic particles also matches the orientation of the minerals from Devils Tower: closer to vertical around the base and horizontal near the top.

The research was supported by the U.S. Department of Energy's ARPA - E REACT program (Advanced Research Projects Agency - Energy — Rare Earth Alternatives in Critical Technologies) which develops cost - effective alternatives to rare earths, the naturally occurring minerals with unique magnetic properties that are used in electric vehicle (EV) motors, and wind generators.

These minerals are oriented to magnetic north at the time of eruption and solidified as the magma cools.

Magnetite — magnetic variant of rust, or iron oxide — is one such mineral.

Microscopic grains inside magnetite are capable of storing information about the planet's magnetic field, including the direction and intensity, from the time the minerals cooled and solidified.

Because minerals display a wide range of slightly different magnetic properties, they can be separated from each other by an electromagnet.

Although his main work there was on electronic phase transitions, he benefitted from the stimulating scientific environment to pursue interests in amorphous magnetism and magnetic order in natural minerals, with the first demonstration of random spin freezing due to frustrated antiferromagnetic interactions.

10) Detox Bath with LL's Magnetic Clay (bentonite)-- Called: «Mercury 2 Detox Clay Bath» WARNING: Take large amounts of colloidal minerals before doing detoxifying soaks.

Firstly, results come from material carrying a thermoremanent magnetisation that has been obtained by cooling through the Curie temperature of the included magnetic minerals.

There was considerable study done on magnetic properties of the cores, to a level that is beyond the usual concepts studied by geophysicists in mineral exploration, soncepts reserved for the specialist geophysicists.

Researchers have found that an iron - containing mineral called dusty olivine, present in meteorites, retains a record of the magnetic field from the early solar system around 4.6 billion years ago.