News from the Geoblogosphere
New from Snet:
, a new tool to create lithological/sedimentological logs online..
Blog post recommendation
Supercomputer Simulation of Chelyabinsk-like Asteroid Entering Earth’s Atmosphere
This simulation shows a cross-section of a Chelyabinsk-like asteroid (gray) breaking up during atmospheric entry at 45,000 mph (20 km per second). A hot, high-pressure shock wave (red, orange, yellow) forms around the asteroid, causing it to fracture and flatten like a pancake. Aerodynamic instabilities shed waves of material from the surface and tear the asteroid apart. The dispersed fragments