Shield volcano

The topic of this discussion is to explain why Africa and South America are moving apart. The drifting apart of Africa and South America has to do with the theory known as the theory of plate tectonics. Based on this model, the crust the coolest part of the mantle, make up Earth’s strong outer layer, known as the lithosphere. Right beneath the lithosphere is the asthenosphere, the hottest part of the mantle. Rocks at this depth are very near the melting temperature, and respond to forces by…

Definition Lahars also called mudflows contain fusion of water and consolidated particles of gravel, ice, wood, and other fragments that flow from volcanoes are distinct, prompt, and gravity-induced outflows of drenched, high-consolidation mixtures.(Vallance, 2000) Types Primary lahars These are generated amidst outbursts by numerous eruption-related activities. Such lahars wiped out almost 37,451 people all over the world between AD 1600 and 2010. The Nevado del Ruiz disaster in 1985 caused…

Plate tectonics is a theory about how the plates are constantly moving on top of a layer of magma that is constantly taking in old crust to recycle it this constant movement causes earthquakes, tsunamis and other geological events. The movement of the Pacific and North American plates cause the old sea floor to be replaced by the now wider North American plate. Also with the movement the continental plate was stretched as the Pacific plate pulled the continental plate to the northwest which…

The search for the legendary lost island known as Atlantis has been grabbing the attention of explorers, historians and philosophers for over 2,000 years. People to this day still argue about its location. Plato, the Greek philosopher, wrote about this ancient civilization in two of his dialogues. Although some argue that this place is fictional, there are scientific and geographical explanations as to why the city would have sunken. Also, there have been relics that were found that suggest they…

Hawaii Volcano National Park is one part of the National Park system. Hawaii Volcanoes National Park has 5 volcanoes but 2 are the most active volcanoes there name is Kilauea and Mauna Loa. According to the World Heritage Center, “Volcanic eruptions have created a constantly changing landscape.” The Hawaii volcanoes national park is found in 1987. You can see animals, volcanoes, go hiking, and see the crater. 2.5 million visitors per year travel to see the volcanoes. It is located in the…

The Popocatepetl is a volcano that has captured attention since prehispanic times and until know for is activity, size and story. It is one of the highest volcanoes in Mexico as well as one of the most active. The fact that the is a large population living around this volcano makes it even more dangerous. The name “Popocatepetl” was given by the Aztecs, it means “smoking mountain”. They gave it this name because during their empire the Aztecs were able to witness options. The Popocatepetl has…

White hot lava bubbles as the beast shakes, it awakens. Ash falls from the sky as heat crawls down the mountain. The volcano erupts. Many people don’t know much about volcanoes, only that lava comes out. There are many different types of volcanoes, but all people think of or see when the word volcano comes up is death and destruction. However, volcanoes can help living things, and they can build as well. No matter where you live, volcanoes effect you. The question is, how? Volcanoes can…

Crater Lake in Oregon was once a stratovolcano named Mount Mazama. Mount Mazama had a very catastrophic pyroclastic eruption that produce about 12 cubic miles of magma. The Mount Mazama volcano has been recorded as one of the largest volcano eruption that has taken place in the last 10,000 years. The Mount Mazama volcano was one of the major volcanoes at the Cascade Range. The range of Mount Mazama’s summit was roughly between 11,000 and 12,000 prior to its climatic eruption. The climatic…

carrying the wealthy elite on litters, and many other jobs that archaeologists believe they had done. When Mount Vesuvius erupted in the year 79 CE in Pompeii Italy, it completely decimated the city and everything else in its path. The collapse of the volcano triggered a hundred mile an hour pyroclastic avalanche that roared through the city and killed an estimated two-thousand people of the twenty-thousand of its residents. Miraculously, this means that many have fled successfully from the…

the basic facts, such as how the cities of Pompeii and Herculaneum were covered with ash, how many, many people died because of the volcano eruption, and how the description we have of the eruption is from a letter written by Pliny the Younger (61AD-113AD). However, many students are not taught about what Roman life was like in Pompeii before the eruption of the volcano. The evidence that has since been recovered by excavations of the cities has shown a vast amount of artifacts that have given…