Web Results

Meteorites - Vanderbilt University


Irons - meteorites composed almost entirely of nickel and iron. Pure metal. Most finds are irons; this is likely because pure iron rocks are odd objects to find in ...

Found A Meteorite? - Meteorites Australia


If the answer to this question is "NO" then it is probably not a meteorite. Because of their high iron content, the vast majority of meteorites will attract a ... It may look like a lump of rusty metal and possibly flake at the surface. ... The iron we see and use in our everyday lives, has to be manufactured and processed fro...

Nebular Evolution of Thermally Processed Solids - Space Science ...


It is widely accepted that meteorite parent bodies formed in the proto- ... olivine aggregates (AOAs)], chondrules, Fe,Ni-metal, and fine-grained matrix mate- ... matrix) formed at high temperatures in the solar nebula and accreted into their parent .... This growth process, which we call incremental accretion, is probably not.

Unlocking the zinc isotope systematics of iron meteorites


Jun 6, 2014 ... Based on the high Zn concentration and δ<sup>66</sup>Zn ≈ 0 determined for a ... Metal samples of six group IIAB and six IIIAB iron meteorites were .... Meteorite mass that corresponds to the meteorite solution aliquot, which was processed for Zn ..... This probably reflects that the isotopic differences between metal ...

Origin of HED Meteorites from the Spalling of Mercury ... - InTech


Mar 23, 2012 ... and Fe-metal content, agree with heat flux measurements (Hofmeister ... The present paper considers how more processed meteorites (the ...

Helium Isotopic Ratios in Native and Processed Metals


In addition, mechanisms have been discovered for supplying meteorites from the asteroid ... For example, the metal content for the 8 primitive chondrite groups and the ... High isotopic ratios for helium in metal foils have been reported in Russian ... probably less than 1 x l0~ years, which agrees with low thermoluminescence ...

Camel Donga: A Eucrite with High Metal Content


Nov 23, 1987 ... Camel Donga: A Eucrite with High Metal Content ... of the metal show that the Camel Donga metal was formed by reduction of FeO and FeS, probably through ... meteorite still contain sulfides, in many cases associated with metal, ... All spectra were processed according to the peak-fitting routine of Kruse.

Ararki (L5) chondrite: The first meteorite find in Thar Desert of India


like regmaglypts are not recognizable, probably due to weathering. ... filled with metal and graphite (Fig. ... (30%, with Fs contents 23 mol%) and high metal content (5 to ..... opposite corners were processed for cosmic-ray heavy nuclei tracks.

Portales Valley: Petrology of a metallic-melt meteorite breccia


Some phosphate probably crystallized ... exhibits a large variation in metal content in different specimens ... features of PV suggest that it was processed in unusual ways. The role ..... sections having a low olivine/pyroxene ratio and high metal.

JCCC Astronomy » Chapter 12: Asteroids, Meteoroids and Comets


In some cases, what appear to be single asteroids are probably two (or more) distinct ... Processed meteorites apparently once were part of a larger object that “ processed” the ... Not only does their high density and metal composition set them apart from ordinary rocks, the iron meteorites are stronger. ..... Iridium Content.

Helpful Resources

Astronomy Final flashcards | Quizlet


They were probably formed by tectonic stresses when the entire planet shrank as its core cooled. .... Processed meteorites with high metal content probably are.

Astronomy Test Answers Flashcards


Apr 26, 2010 ... Because only metal and rock could condense in the inner solar system, while ice ..... Processed meteorites with high metal content probably are ...

Astronomy Chapter Nine - ProProfs Quiz


7. Processed meteorites with high metal content probably are. A. Leftover chunks of rock from the ... 12. What is a meteorite? A. A streak of light caused by a star ...

TEST 2 - Astronomy 170b2 with Gabor at University of Arizona ...


Mar 11, 2015 ... The maria formed after the heavy bombardment ended. Volcanism is ... Processed meteorites with high metal content probably are. chunks of ...

Meteorites - Astronomy Notes


May 13, 2013 ... As with the asteroids, there are many ways of grouping meteorites. ... The primitive meteorites are probably the most important ones because they hold ... put the meteorites into two groups: primitive and processed (not primitive). ... Not only does their high density and metal composition set them apart from ...