Cratering Definition & Meaning - Merriam-Webster
网页noun (1) cra· ter ˈkrā-tər. plural craters. Synonyms of crater. 1. a. : the bowl-shaped depression around the orifice of a volcano. b. : a depression formed by an impact (as of a …
Impact crater - Wikipedia
网页Impact cratering involves high velocity collisions between solid objects, typically much greater than the speed of sound in those objects. Such hyper-velocity impacts produce physical effects such as melting and vaporization that do …
CRATERING | English meaning - Cambridge Dictionary
网页the sudden fall or failure of a price, market, business, etc.: The events of 2008 and the cratering of the economy thereafter were emergencies. What we've seen in the past few …
Crater - National Geographic Society
网页2024年4月17日 · Cratering is a rare occurrence in the solar system today. Planets, moons, comets, and other celestial bodies have fairly stable orbits that do not interact with each other. Meteors do collide with planets—including Earth—every day.
What Causes Impact Craters? - Ask An Earth and Space Scientist
网页The Stages Of An Impact Crater. Impact craters are formed rapidly. A meteor enters a celestial body’s exosphere (or outer atmosphere) and then hits the surface. There are generally three stages to creating an impact crater: contact, excavation, and modification.
Cratering | Oxford Research Encyclopedia of Planetary Science
网页A near-surface burst creates an explosion crater, and an impact often results in the creation of an impact crater. The chain of processes connected to an impact crater’s formation is named “impact cratering” or simply “cratering.”
Cratering - an overview | ScienceDirect Topics
网页Cratering - an overview | ScienceDirect Topics. In subject area: Earth and Planetary Sciences. Impact cratering is a transient phenomenon that lasts in minutes or shorter for craters less than hundreds of kilometers in diameter (Melosh, 1989). From: Treatise on Geomorphology (Second Edition), 2022. About this page. Add to Mendeley.
Cratering - SpringerLink
网页A crater is formed by the ejection of material, which is caused by a rapid release of energy near or below the surface of the ground. The energy source may be the high-velocity impact of a projectile or the detonation of an explosive charge.
Deep Impact: Science: Cratering - UMD
网页2017年11月14日 · The cratering process will help reveal what type of material makes up the nucleus (or at least the outer layer), and therefore how the comet formed and evolved.
Impact cratering — fundamental process in geoscience and …
网页2007年6月3日 · Impact cratering is a geological process characterized by ultra-fast strain rates, which generates extreme shock pressure and shock temperature conditions on and just below planetary surfaces.