Sentences with phrase «of iron meteorite»

The exhibition also includes important pieces from across Parker's career, such as Cold Dark Matter; An Exploded View (1991), and opens with a breathtaking firework display that will send fragments of iron meteorite up into the skies above Manchester.

The high metal content of this iron meteorite, called Lebanon, makes it appear darker and shinier than most other Martian rocks.

J.Hohn, if you lower corporate taxes on natural resources, it won't increase the number of plants that decomposed on Canada 300M yrs ago, nor will it induce a meteor shower of iron meteorites, over Canada.

Analyses of iron meteorites clearly show that asteroids got hot enough to melt rock, perhaps enabling the constituent material to become denser.

``... we lack compelling scenarios leading to the origin of iron meteorites... Early solar system collisions have been called upon to excavate this iron [from the cores of the largest asteroids], although numerical impact models have found this task difficult to achieve, particularly when it is required to occur many dozens of times, yet not a single time for asteroid Vesta.»

Instead, the ages of different types of iron meteorites cluster at different times [Wieler, 2002].

Not exact matches

The amount of nickel - 60 found in meteorite samples — particularly in comparison to the amount of stable, «ordinary» iron - 56 — can indicate how much iron - 60 was present when the larger parent body from which the meteorite broke off was formed.

Tiny pockets of sulfur and iron (yellow) inside a diamond (blue) inside a meteorite suggest the meteorite was once part of a long - lost planet in the early solar system.

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

SCRAPS of iron found scattered around what became known as Meteor Crater in Arizona convinced geologist Daniel Barringer that a huge iron meteorite lay buried there.

In August researchers at the University of Arizona found an answer: Schreibersite, an iron - nickel phosphide that occurs in iron meteorites, could have provided all the phosphorus needed.

Many meteorites contain high levels of metallic iron, so if one falls in a humid jungle climate, the combination of moisture and oxygen will corrode it.

On Earth, iron meteorites are not as common as stony ones, but Mars seems to have a lot of the iron kind.

Known as the «iron man,» a 24 - centimeter - high sculpture was likely created from a piece of the Chinga meteorite that was strewn across the border region between Russia and Mongolia between 10,000 and 20,000 years ago

Iron meteorites, derived from the shattered cores of larger asteroids, reach Earth only rarely.

Nickel - iron crystals form a geometric pattern on the face of an octahedrite meteorite.

A 300 - pound iron meteorite bears a sold sign at the hotel room of dealer Michael Farmer, who would not say if he got his sticker price of $ 250,000.

The meteorite's composition matches that of an LL chondrite, — the LL stands for Low iron, Low metals.

Scientists have identified each crater by using several different kinds of clues, such as pieces of iron - rich meteorite or satellite imaging.

Further studies at the site uncovered 74 fragments of the original iron meteorite, the researchers report in this month's issue of Geology.

The majority of this 6 inch meteorite consists of iron - nickel metal, and the darker - colored structure in the center is schreibersite.

Geologist Matthew Pasek of the University of Arizona in Tucson, who previously studied the possibility that early life used phosphorus from iron meteorites, knew that cloud - to - ground lightning was one of the few natural phenomena that could produce enough energy to create phosphite.

Contrary to current geophysical models, ground data indicate that iron meteorites with masses of the order of tens of tons can penetrate the atmosphere without substantial fragmentation.

This feature and the association with an iron meteorite impactor and shock metamorphism provides a unique picture of small - scale hypervelocity impacts on Earth's crust.

«Having looked at some of the published trace element data for this artefact, it looks pretty convincing to me that this is very likely originated from Chinga iron meteorite,» says Meenakshi Wadhwa, director of the Center for Meteorite Studies at Arizona State University meteorite,» says Meenakshi Wadhwa, director of the Center for Meteorite Studies at Arizona State University Meteorite Studies at Arizona State University in Tempe.

It showed that the concentrations of metals, including iron, nickel, cobalt and chromium, matched the values known from iron meteorites.

By looking at tungsten and molybdenum isotopes on iron meteorites, the team, made up of scientists from Lawrence Livermore National Laboratory and Institut für Planetologie at the University of Münsterin Germany, found that meteorites are made up from two genetically distinct nebular reservoirs that coexisted but remained separated between 1 million and 3 - 4 million years after the solar system formed.

If the Martian core is dense (composed of iron) similar to Earth's or SNC meteorites thought to originate from Mars, then the minimum core radius would be about 1300 kilometers.

Laser - zapping of a globular, golf - ball - size object on Mars by NASA's Curiosity rover confirms that it is an iron - nickel meteorite fallen from the Red Planet's sky.

Using innovative isotopic analysis techniques and mathematical modeling, he has shown that Mars is a planetary embryo, found isotopic similarities between the Moon, Earth and meteorites, and proposed a new narrative for the origin of Earth's unique iron composition.

A weapon as legendary as the dagger of King Tutankhamun needs an epic backstory, and last year X-ray analysis showed that the iron in the blade came from meteorites.

Bronze Age artifacts revealed nickel levels and ratio of iron to cobalt that suggest these were made using metals from meteorites.

Kruijer and colleagues selected 19 samples of rare iron meteorites.

A form of magnetite (iron oxide) was detected in the meteorite that, on Earth, is produced only within the bodies of certain bacteria.

The signatures of pyroxene, an iron - and magnesium - rich mineral, in these meteorites have been found to match those of rocks observed on Vesta's surface.

The main result of this research, is that the variations of the flux, as predicted from the galactic model and as observed from the Iron meteorites is in sync with the occurrence of ice - age epochs on Earth.

Plotted are the period and phase (of expected peak coldness) of two extraterrestrial signals (astronomical determinations of the spiral arm pattern speed and cosmic ray flux reconstruction using Iron meteorites) and two paleoclimate reconstruction (based on sedimentation and geochemical records).

Reconstructing cosmic ray fluxes The starting point of [Shaviv and Veizer, 2003] is a reconstruction of cosmic ray fluxes over the past 1,000 m.y. based on 50 iron meteorites and a simple model estimating cosmic ray flux (CRF) induced by the Earth's passage through Galactic spiral arms -LRB-[Shaviv, 2002; Shaviv, 2003]-RRB-.

Figure 3 - An Iron meteorite, a large sample of which can be used to reconstruct the past cosmic ray flux variations.

The so - called «Galactic Cosmic Rays» probably come directly from the Sun's pulsar core, and were recorded as a gradient in cosmic ray exposures of meteorites at the birth of the solar system: iron meteorites > stone meteorites > carbonaceous chondrites

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.