ejecta


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ejecta

(i-jek -tă) Material excavated during the formation of a crater or basin. See also ejecta blanket; secondary craters.

ejecta

[ē′jek·tə]
(geology)
Material which is discharged by a volcano.
(physiology)
Excrement.
(science and technology)
Material which is cast out.
References in periodicals archive ?
Therefore, if the breccia represents ejecta, it would represent the ejection and deposition of only Middle-Upper Silurian dolostones prior to the Late Devonian deposition of the Ohio Shale.
The levels of all the compounds in the ejecta are small.
Using Hubble's Wide Field Camera 3, the team took advantage of the blast of light emitted by the erupting nova to trace the light's path as it lit up the disk and material from previous ejecta.
It is anticipated that sunlight erases luminescence, zeroing electron traps of quartz minerals within a few minutes at most, an effect which could occur during tsunami ejecta.
2006, Effect of volatiles and target lithology on the generation and emplacement of impact crater-fill and ejecta deposits on Mars: Meteoritics and Planetary Science, v.
Definitions: ejecta--interior and exterior rock, soil and debris thrown up and around the crater from impact; rays--scattered ejecta spread out in radial lines surrounding the crater; rim--crater lip
56]Ni (MM) synthesized in the thermonuclear explosion of a Type Ia SN can be derived using Arnet's rule, (26) which states that at the time of maximum light, the luminosity is equal to the energy inputs from the radioactive decays in the expanding ejecta.
If these events lead to ejecta, they will have experienced explosive burning, possibly under the strong influence of interactions with neutrinos.
That melted conglomeration appears in the walls and floors of impact craters, on hills and ridges, and underneath brighter, more recent material called ejecta, which is material thrown out from a space rock impact.
The spectroscopic evolution of novae gives evidence for two distinct interacting gas systems in which the bright continuum is produced by the outburst ejecta but absorption and emission lines originate in gas ejected by the secondary star in a way that could explain dust formation and X-ray emission from novae.
Also, in the equation used to derive recoil, the weight of charge is added to the weight of the projectile, both together called the ejecta.