Sentences with phrase «in iron meteorites»

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.

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.

Iron - nickel alloys are ubiquitous: they are found at the earth's core and in meteorites.

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.

It turned out that the rock had an elevated manganese - to - iron ratio — higher than that in Earth rocks and consistent with other martian meteorites.

«Iron meteorites would bring that in very nicely,» he theorizes.

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.

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.

«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.

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.

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.

Dorothy Cross, Table Telescope, 2016, cast iron table, antique brass telescope, gilded human skull, meteorite, table 49 x 28 cm / 19.3 x 11 in, telescope 5 cm x 26/91 cm / 2 in x 1059.4 in

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.

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.