Sentences with phrase «in pyroclastic»

«At Kima'Kho, we were able to map a passage zone in pyroclastic deposits left by the earliest explosive phase of eruption, allowing for more accurate forensic recovery of paleo - lake levels through time and better estimates of paleo - ice thicknesses,» says UBC volcanologist James K Russell, lead author on the paper published this week in Nature Communications.

Not exact matches

The entire cliff would have been deposited very quickly from a fast - moving current of hot gas and ash (a pyroclastic density current), and the extreme temperatures (900-1000 °C) caused the ash to weld to the ground and effectively enameled the area in dense volcanic glass.

Scientists are now watching to see whether the volcano repeats the violent eruptions of 1963, when superheated gases and volcanic material raced down the mountain in a series of pyroclastic flows, killing more than 1000 people.

The team also performed radiocarbon analyses on carbonized tree trunks and branches buried within the pyroclastic deposits to confirm the date of the eruption; it could not, they concluded, have happened before 1257 C.E., and certainly happened in the 13th century.

According to Babad Lombok, records of the island written on palm leaves in Old Javanese, Samalas erupted catastrophically before the end of the 13th century, devastating surrounding villages — including Lombok's capital at the time, Pamatan — with ash and fast - moving sweeps of hot rock and gas called pyroclastic flows.

And the flows can travel at incredibly high speeds down the sides of a volcano; an estimate of the average speed of the pyroclastic flow down the slopes of Mount Saint Helens in Washington State during its 1980 eruption (also Plinian) was around 230 kilometers per hour.

After a wave of hot gas and ash, called a pyroclastic flow, engulfed nearby Pompeii and killed those left in the city, more layers of ash from the eruption buried the buildings and bodies.

Using that method, Goudge and his colleagues showed that some pyroclastic deposits are found in relatively young (geologically speaking) craters dated to between 3.5 and 1 billion years old.

The age of each crater offers an important constraint in the age of the pyroclastic deposit inside it: The deposit has to be younger than its host crater.

A team of researchers led by Tim Goudge, a graduate student in the Department of Geological Sciences at Brown, looked at 51 pyroclastic sites distributed across Mercury's surface.

The combined effects of pyroclastic flows, volcanic ashes and tsunamis had disastrous results in the region.

The lava erupted explosively in shallow waters producing large volumes of a glassy pyroclastic rock called hyaloclastite.

«The magma that originally erupted from the supervolcano had about 1,400 ppm lithium in it,» said Benson, describing a red - hot pyroclastic flow of pumice, ash, crystals, and rock that spread for 50 miles in all directions.

«I've skipped all other reading in favor of this enthralling world of loyalty, betrayal, and pyroclastic flows.»

Mount Sinabung in the North Sumatra regency of Karo has erupted once again, spewing a pyroclastic fl...

The volcano last erupted in 1963, during which a pyroclastic flow released from its crater damaged several villages nearby.

Pyroclastic flows and material thrown from the volcano tragically killed 78 people living in the nearby communities of Arenal and Pueblo Nuevo.

Players race a car down a mountain to escape a roaring pyroclastic flow, dodge toppling buildings during a devastating earthquake and swim for their lives in a raging flood.

The largest of them occurred in the late 6th century, and is believed to have generated pyroclastic flows — that of hot gas, ash and rocks blown out of a volcano — reaching at least 50 kilometers from Rabaul.