Sentences with phrase «impact glass forms»
Impact glass forms in the heat of a violent impact that excavates a crater.
https://www.sciencedaily.com/ Not exact matches
Then tiny tektites — glass bits formed during impacts — turned up in Haiti.
One of those studies, led by Brown geologist Peter Schultz and published last year, found organic molecules and even plant matter entombed in glass formed by an impact that occurred millions of years ago in Argentina.
«Understanding properties of silicate melts and glasses at ultra-high pressure is crucial to understand how the Earth has formed in its infancy, where impacts of large asteroids led to a completely molten Earth,» said Prescher.
With the origin of life on Earth believed to have coincided with a period of increased impact flux, the idea that meteorite - formed glass might provide a prevalent, viable habitat for microbes could have a significant «impact» on our understanding of how early life developed.
The energy of impacts that create such craters can be high enough to melt rock; these melts cool rapidly, forming impact glass — a smooth, dark rock, similar to its volcanic cousin, obsidian — which contains various microscopic structures and crystals.
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