![pyroclastic flow pyroclastic flow](https://i.ytimg.com/vi/EZdFqvnzClU/maxresdefault.jpg)
The first is due to the explosive eruption when the column of ashes and gas collapses. A pyroclastic flow consists of two parts: a basal flow of coarse fragments that move the ground and a cloud of ash and volcanic gases that rises above. These flows can reach 700 kilometers per hour, faster than common cars. Pyroclastic flows are mainly rock fragments combined with hot gases that move extremely fast due to gravity. The pyroclastic flow reached 1,000 degrees Celsius according to a CNN meteorologist. This catastrophe was so deadly due to the pyroclastic flow, a mix of ash, rock and volcanic gases. Up to nine explosions were recorded every hour and approximately 1.7 million people has been affected by the eruption. The eruption left more than 110 dead and almost 200 people missing.
![pyroclastic flow pyroclastic flow](https://i.pinimg.com/originals/b3/6c/cb/b36ccb4ca27e019afe1312aa1e59154b.jpg)
On June 3, the Fuego Volcano spread ash 6 miles into the sky and about 10 miles across towns and farms. The researchers also found evidence of burst skulls, likely due to vaporizing brain matter.Fuego volcano eruption on June 3, Guatemala. Study of the residue showed that it was iron, though the researchers could not say for certain if it came from blood or metal objects. Prior research has also shown that such residues can also be caused by blood being boiled away leaving behind suspended iron. Prior research suggested that such residue typically occurs when bones are burned in the vicinity of coins or other metal objects-the residue typically consists of iron particles. Upon taking a closer look at some of the remains, the researchers found red and black residue on parts of some of the bones. The team began their investigation after learning of reports of evidence of people dying from thermal shock. The researchers found evidence in the remains of many people who had sought refuge in a boathouse near the sea in Herculaneum. When a person is overcome by such a flow, the result is instant death. Pyroclastic flows are flows composed of gas and volcanic material-prior research has shown that they can flow downhill away from an eruption at speeds of up to 450 mph-and temperatures are as hot as 1000 degrees C. The researchers with this new effort have found that many of them were killed by the extreme heat of pyroclastic flows. But this was not the fate of many people living in the nearby city of Herculaneum. Extensive research has shown that most of the victims in Pompei died from injuries or suffocation due to the thick ash. So sudden was the disaster that many people were killed and buried in ash, leaving their "frozen" remains to be discovered by archaeologists approximately 1700 years later. Vesuvius erupted back in 79 AD and covered cities such as Pompei in ash. Most people learned in grade school that Mt. In their paper published on the open access site PLOS ONE, the group describes telltale signs of heat damage they found in the remains of people living in the ancient Roman city at the time. Vesuvius were killed by the extreme heat characteristic of pyroclastic flows.
![pyroclastic flow pyroclastic flow](https://i.pinimg.com/originals/a3/e4/79/a3e47974db0ac0b3fcf02af03b9e263f.jpg)
DOI: 10.1371/journal.pone.0203210Ī team of researchers at the Federico II University Hospital in Italy has found evidence that suggests many people living in Herculaneum during the 79 AD eruption of Mt. The skull of this victim was lying in the ash bed on its left side. 6, chamber 12) charring of the fractured margins is evident (white arrows) (bar scale 10 cm). Exploded skull showing a partly dark stained inner table (right side, adult male, ind. Skullcap affected by a “stellate” fracture consisting of several cracks which radiate from a common center, characterized by charred outer margins (adult male, ind.
Pyroclastic flow cracked#
Skull of an older-aged adult male showing a dark stained and cracked parietal bone (ind. Thermal effects in human victims' skeletons.