Lava

4.2.5. The Fantale geothermal prospect area The Fantale geothermal prospect is characterized by recent summit felsic lava, caldera collapse, extrusions in the caldera bottom and widespread fumarolic activity, signifying thereby the existence of a shallow magma chamber (Tekelemariam and Beyene, 2005). Active tensional tectonics form fissures up to 2m near the volcanic complex. From the area ground water discharge to the system is guaranteed by the proximity of the area to the western escarpment.…

New crust is generated as plates pull away from each other and can either cause sea floor spreading or new land to be created. An example of a continental rift valley is the Eastern African Rift Valley which is being formed as the Eastern African plate is moving away from the main Africa plate in a north-easterly direction. Plates move apart due to convection currents in the lithosphere. As the crusts move away from each other the crust thins, tension in the lithosphere causes the plate to…

my paper I will be giving information on how often do volcanoes erupt. First,I will explain how magma can trigger volcanic eruption. Next, I will discuss how buoyancy can also trigger a volcanic eruption. Finally, I will predict how pressure from gases in the magma and magma chamber can cause a volcanic eruption,and give some more details about my volcano. It depends on the volcano to erupt oftenly. Some volcanoes erupt very often (and some like Kilauea almost never stop). On the other hand,…

On August 24th in 79 AD at approximately 1300 a cloud appeared over the Roman city of Pompeii. This was all the warning the residents had before the nearby volcano, Mount Vesuvius, erupted. Huge quantities of scalding hot ash, pumice and lava pebbles were thrown into the sky. This then cascaded down across an extensive area. Most of the 20,000 residents fled for their lives but approximately 2,000 people stayed behind and hoped to wait out the disaster in their homes. Those who stayed…

This happened in the famous lost city of Pompeii almost 2,000 years ago, after Mount Vesuvius erupted the whole city of Pompeii was covered with lava and ash causing everybody to die. Most of the people affected looked as if they were doing normal day things when their roof crashed in on them. More than 100 plaster casts of bodies have been made and put into museums. Therefore, heavy rains, weather…

Pompeii Disaster There have been few natural disasters quite as catastrophic as the eruption of Mount Vesuvius in 79 AD. The volcano destroyed the ancient Roman cities of Pompeii and Herculaneum by burying them in molten ash, pumice, sulfuric gas, and mud. The eruption killed thousands of people, and the cities have never been rebuilt since. (History.com) The cities were left undiscovered for 1700 years, until 1748. The discovery of Pompeii led to the revelation of artifacts, bodies and…

gases explode and may burst out the sides of the cone in addition to the summit crater. Mt Vesuvius is a Stratovolcano also known as a composite volcano. Stratovolcanoes are also called composite as they are made of built up of alternating layers of lava flow, ash and blocks of unmelted stone. Stratovolcanoes form above the subduction zone at plate boundaries. They are known for erupting with great violence. They are larger than cinder cones nd result from a conduit system; vents lead from…

Specific purpose: To inform the audience on what happened to Pompeii. Central Idea: Mount Vesuvius is a dangerous active volcano that has the potential to cause the equivalent damage or worse even today. Introduction I. “I looked round: a dense black cloud was coming up behind us, spreading over the earth like a flood. Many besought the aid of the goods, but still more imagined there were no gods left, and that the universe was plunged into eternal darkness for evermore.” A. These were the words…

Volcanoes have a purpose to be on Earth. Volcanoes are on earth is because volcanoes are a natural way to cool off the earth. These volcanoes are releasing internal heat pressure. Volcanoes are erupting because this is how much pressure they have. “ Volcanoes can remove heat from the interior,” according to Oregonstate.edu. Volcanoes do wonderful things for Earth. There are many dangerous volcanoes. One of the most dangerous volcano is the Campi in Flegrei, Italy. Campi had more recent history…

Mazama's first eruption was somewhere around 420,000 years ago,” says UMASS (the University of Massachusetts). As hundreds of thousands of years passed, Mazama’s eruptions became more violent and destructive. These eruptions usually included thick lava and slow flows. USGS informs us. “These eruptions, however, were nothing compared to Mount Mazama’s major eruption years after.”…