Sentences with phrase «large rock fragments»
Not exact matches
He also adds: «The tidal effect on an asteroid, which rapidly rotates under the gravitational field of a planet, can fragment these objects or release large rocks from its surface, which could then become such dangerous projectiles at a local scale as the one fell in Cheliábinsk (Russia) on February 15th 2013.»
https://www.sciencedaily.com/
Flows usually consist of two parts: the basal flow hugs the ground and contains larger, coarse boulders and rock fragments, while an ash cloud rises above it because of the turbulence between the flow and the overlying air.
The disk, which we see edge on, contains rock and ice fragments ranging in size from objects larger than houses to grains as small as smoke particles.