Brecciated Chely Abinsk Near-Earth Asteroid and its Catastrophic Air Burst

[摘要] Determining the hazards of near-Earth asteroid (NEA) impacts has been vexed by a paucity of precise data. Existing estimates of blast damage (e.g., [1]), for example, rely on uncertain impact energies for events like Sikhote-Alin, Tunguska, and Barringer Meteorite Crater. The Chelyabinsk air burst event of 15 February 2013, involving an LL-type NEA, provides an excellent calibration point for enhancing those assessments.

[发布日期] 2013-07-29

[学科分类] 地质物理学