Pyroclastic flow will destroy nearly everything in its path. With rock fragments ranging in size from ash to boulders traveling across the ground at speeds greater than 80 km per hour, pyroclastic flows knock down, shatter, bury or carry away nearly all objects and structures in their way. The extreme temperatures of rocks and gas inside pyroclastic flows, between 200°C and 700°C, can cause combustible material to burn, especially petroleum products, wood, vegetation, and houses. -- Samuel…
Pyroclastic Flows on Ischia | #Geology #GeologyPage Locality: Poseidon's Gardens near Citara on the island of Ischia Italy Photo Copyright Drew Patrick Fox Lane High School/EPOD Geology Page www.geologypage.com
▶ Extreme Pyroclastic Flows At Sinabung Volcano, Indonesia 21st Jan 2014 - Mount Sinabung is a Pleistocene-to-Holocene stratovolcano of andesite and dacite in the Karo plateau of Karo Regency, North Sumatra, Indonesia, 25 miles from Lake Toba supervolcano.
It is not known when the last eruption of Ararat occurred; there are no historic or recent observations of large-scale activity recorded. It seems that Ararat was active in the 3rd millennium BC; under the pyroclastic flows, artifacts from the early Bronze Age and remains of human bodies have been found.Dr. Friedrich Parrot, with the help of Khachatur Abovian, was the first explorer in modern times to reach the summit of Mount Ararat, subsequent to the onset of Russian rule in 1829.