sentences:  A special energetic volcanic eruption known as a strombolian eruption produces bright arcs of ejecta, referred to as rooster tails, composed of basaltic cinders or volcanic ash.Coronal loops are the basic structures of the magnetic solar corona, the bright area seen around the sun during solar eclipses.These loops are the closed-magnetic flux cousins of the open-magnetic flux that can be found in coronal hole (polar) regions and the solar wind.