Civil aviation authorities were asked to advise pilots to avoid flying close to the volcano's summit as ejecta
from any sudden phreatic eruption can be hazardous to aircraft.
A second site, seven kilometres away, proved to be a two-metre-thick layer of ejecta
- material ejected from a crater - with the same strange mineralogy.
They figured out that the material was part of the ejecta
of a meteorite impact - the stuff that was thrown outward when the space rock slammed into the Earth's surface - and that the collision could have been linked to volcanic activity that occurred soon afterward in the area.
Civil aviation authorities must also advise pilots to avoid flying close to the volcano's summit as ejecta
from any sudden phreatic eruption can be hazardous to aircraft, it added.
While it's easy for an impact to excavate and eject some of a planet's surface, moving those ejecta
into a stable Trojan orbit requires a significant change in orbital energy.
50 you get to see the likes of Ejecta
, Foals (DJ set), Barry Redsetta, Zombie Nation, Perc and a host of others.
Microbial analysis of Indian flying fox, Pteropus giganteus ejecta
roosting at Jinnah and Lalazar Gardens, Lahore was carried out from January, through December, 2011 and a total of twelve fungal and twelve bacterial genera were isolated.
Le sort de Morsi avait ete scelle en juin 2015, en meme temps qu'une centaine de coaccuses, pour [beaucoup moins que] evasions massives de prison [beaucoup plus grand que] et des assauts contre la police durant le soulevement de 2011 qui ejecta
Hosni Moubarak de son fauteuil.
Both craters are about the same size -- roughly 5 kilometers [3 miles] in diameter -- with similar appearances, including bright wisps or rays of ejected material, or ejecta
The authors suggest that searches for these impact ejecta
layers will be more fruitful for determining how many times Earth was hit by big asteroids than searches for large craters.
Soon afterwards Arp came to the conclusion that quasars were ejecta
from galaxies and that their redshift-derived motions were not of cosmological origin but instead were the result of high velocities caused by the ejection process.
Many craters show prominent central peaks and terraced walls and are surrounded by ejecta
blankets of matter thrown out by the impacts.