Sentences with phrase «chondrules at»

That was part of the title of a session on the formation of chondrules at the 75th annual Meteoritical Society meeting last year.134

Not exact matches

However, researchers at MIT and Purdue University have now found that chondrules may have played less of a fundamental role.

Previous experiments in the lab have shown that chondrules cool down at a rate of 10 to 1,000 kelvins per hour — a rate that would produce the texture of chondrules seen in meteorites.

Johnson predicts that oblique impacts, or collisions occurring at an angle, may be even more efficient at producing molten plumes of chondrules.

During the simulations, it was found that the planetary bodies would have to strike each other at a rate of 2.5 km (1.6 miles) per second to produce an impact plume with molten droplets that would cool at the correct rate to create chondrules with the characteristics we observe today.

Although chondrules evolved in outer space where temperatures are almost -460 °F (492 °F below freezing), they required sudden melting temperatures of at least 3,000 °F.