Thursday, August 12, 2010

Pompeii and the pyroclastic surge

THE PEOPLE AT POMPEII died from a pyroclastic surge, and the media has finally noticed:
Scientists question accepted wisdom on what killed Pompeiians when Mt. Vesuvius erupted

By Angelica Marin (MinnPost.com)

POMPEII, Italy — A child lies on the ground with his tiny arms elevated in motion. Beside him, a woman with another child on her lap clenches her fists, as if guarding herself from an inevitable horror. Inside a dimly lit room, surrounded by chipping coral frescoes, lie 2,000-year-old skeletal remnants, vividly human forms encased in chalky plaster.

The Mt. Vesuvius volcano took their lives in 79 A.D., unleashing its fury and burying the ancient port city of Pompeii under layers of lava and ashes. The sight was so horrific, that Pompeians thought the gods had grown angry — and that the end of the world was near.

Since the uncovering of Pompeii in 1599, archeologists believed that these ancient Romans died by being suffocated by the ashes and gases spewing for two days from the mouth of Vesuvius. Their theory rested on the account of a contemporary witness, Pliny the Younger, who saw the eruption from across the Gulf of Naples, claiming that his uncle in Pompeii had taken his last breath under a cloud of ash.

“Our scientific research has proven differently, that death came because of the temperature, not suffocation,” said Giuseppe Mastrolorenzo, a rogue vulcanologist from the Naples Observatory. “Everything that has been written in the guides, and the texts, and that has been re-told to tourists is false,” he said.

After years of analyzing nearly 100 skeletal casts, testing bone tissue and creating numerous simulations of the Vesuvius eruption, Mastrolorenzo concluded that the people of Pompeii were instantly killed by a pyroclastic cloud, a gusty surge carrying the volcano’s lethal temperatures.

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It's not clear to me what is new about this study, since the effects of the fatal pyroclastic surge at Pompeii has been known for a long time. I noted it at PaleoJudaica five years ago, citing a 2003 Archaeology Magazine article.