“Most typical of the volcanicity is the presence of ultrabasic lavas and the highly magnesian basic lavas known as komatiites.”

“Palaeozoic volcanicity was conspicuous along active continental margins especially where there was subduction.”

“This formed over 4 billion years ago giving evidence of planetary accretion and volcanicity on the moon.”

“A spectacular form of heat advection occurs when molten rock, or magma, erupts from a volcano.”

“The whole situation was a volcano, terrifyingly close to erupting.”

“Local attractions include stunning inland seas and intrepid volcano treks, but the stars of the show are the mountain gorillas.”

“This appears to contradict evidence from other areas, particularly Wales where subduction-related volcanism occurs in the late Tremadoc.”

“Rejuvenescent volcanism occurs on many oceanic islands, including the Society Islands.”

“Influx of trachytic volcanic rock fragments in the Albian may derive from inlra-platc volcanism related to extension.”

“The figures are carved and incised into reddish-brown slate, sandstone and volcanite.”

“These volcanics are a group that includes different volcanic materials such as Incesu ignimbrite and Seksenverentepe volcanite.”

“You think you're going to do a bit of naked swimming in a lake in one of the most isolated parts of the country, then I turn up with a camera crew and a volcanist.”

“In a few minutes the detective and the volcanologist joined him in the cavern.”

“Alain Creusot volcanologist and well-known specialist of the central America's volcanoes has been living in Nicaragua for 40 years.”

“Kirstie Simpson is a physical volcanologist with a background in both modern and ancient volcanic terranes.”

“Colombia also has been at the forefront of studies of volcanology and seismology.”

“Our research is multidisciplinary and represents social science, medicine, and volcanology.”

“This seemingly endless string of earthquakes calls for extra efforts from the volcanology experts.”

“Seismologists and volcanologists use both seismic and infrasonic signals to monitor volcanic activity.”

“Rainier is a composite volcano built of lava and fragmented rock and while volcanologists say it's unlikely to erupt again in the near future, they always add a small corollary.”

“Stationed at the Montserrat Volcano Observatory, she and other volcanologists had been keeping a close eye on the restless mountain for two days.”

“Individual samples weighing 24 kg were collected from the Dal and Bandak volcanics and were crushed and milled.”

“The wide distribution of the volcanics implies that a mantle plume was present beneath northern Australia in the past.”

“These are overlain by low-grade metamorphosed sediments and volcanics of Ordovician and Silurian age.”

“A lifetime of earthquakes and landslides and volcanos and floods have changed the landscape as we once knew it.”

“The islands' topography includes such diverse features as active volcanos, grassy pastures, and endless stretches of beach.”

“It's pretty low with no big hills just a few small and long dormant volcanos.”

“From the volcanoes, scores of streams race through the jungle down deep ravines.”

“The temperature of the lava, about 1,500 kelvins, is similar to that of the hottest volcanoes on Earth.”

“And what are the circumstances like now, presumably the volcanoes would be extinct, they're quiescent?”