Crater
The glass is an impactite resulting from the melting of local rocks due to the impact of a large meteorite. The assumed source is a 1.2-kilometer-wide topographic depression known as Darwin Crater. The crater is filled with 230 m of sediments and breccia. A crater of that size would be created by a meteorite 20 to 50 m in diameter and its impact with Earth would release 20 megatons of energy.
Read more about this topic: Darwin Glass
Famous quotes containing the word crater:
“Give me a condor’s quill! Give me Vesuvius’ crater for an inkstand!”
—Herman Melville (1819–1891)