Why was the Plinian eruption named after Pliny?

Plinian eruptions produce huge clouds of volcanic ash rising up from a giant cinder cone. These eruptions are named after the Roman statesman Pliny the Younger, who witnessed the eruption of Italy’s Mount Vesuvius in 79 AD, which destroyed the towns of Pompeii and Herculaneum, killing thousands of people (Giacomelli et al., 2003).

How are PDCS formed during a Plinian eruption?

PDCs are common during Plinian eruptions, often forming by collapse of the vent-derived column. Several historic eruptions have provided detailed observations of co-PDC plume formation and dispersion associated with Plinian eruptions.

How tall does an eruption of a Plinian volcano get?

The Plinian eruption produces only pyroclastic material, which exits from the vent at several hundred meters per second and forms a convective column tens of kilometers in height. Plinian eruptions are thus not instantaneous explosions, but rather sustained events involving ejection of fragmented magma at rates of 106 to 10 9 kg/sec.

What is the bulk vesicularity of plinian deposits?

Bulk vesicularity of pumice clasts from plinian deposits ranges on average between 65 and 85 vol%, and it may vary along the eruption sequence due to variations in MDR and eruption dynamics.

What was the name of Pliny the Elder’s uncle?

That eruption of Vesuvius killed Pliny the Elder, the uncle of Pliny the Younger. Plinian eruptions have columnsof gasand volcanic ashhigh into the stratosphere. There is a large amount of pumiceejectedinto the atmosphereand very powerful gas blast eruptions. Short eruptions can end in less than a day. Longer ones can take several days to months.

What do you mean by Plinian Core in biology?

Plinian Core is a set of vocabulary terms that can be used to describe different aspects of biological species information. Under “biological species Information” all kinds of properties or traits related to taxa—biological and non-biological—are included.

When did the Plinian eruption happen in Indonesia?

(A) Co-PDC plume rising from a channel-confined PDC during the Plinian eruption of Pinatubo, Indonesia, on June 15, 1991 (photo by R. Hoblitt; PDC in the Sacobia river valley 20 km north of Pinatubo at 6:01 local time, USGS special publication).