PPT-Volcanoes of the Ancient World

3 Major Volcanoes Etna Vesuvius Thera httpimagessciencedailycom201010101007092826largejpg httpjamestaborcom20131009thedestructionofpompeiandthenewtestamentbookofrevelationmountvesuviuseruptionpompeii. . The. Impact. of. Christianity. on. Culture. and. Politics. The Ancient World - Christianity. t . e M T. Yellowstone Park is not only spectacular but also unique. It is the result of three volcanic eruptions, the likes of which have never been seen in all of recorded history. The first eruption occurred 2 million years, followed by two more eruptions 1 million years and 600,000 years ago. Below Yellowstone Park there is a hot spot that is generating basaltic magma. At the time of each of their three eruptions, the magma chamber began to produce large volumes of basaltic magma. Because of its low viscosity, the basaltic magma quickly rose to the bottom of the granitic continental crust. However, because the density of basaltic magma (density about 3) is slightly higher than that of granite (density about 2.9) it could not force its way through the granite to the surface. Instead, it began to pool beneath the granitic crust. The amount of heat trapped within the molten basaltic magma was enough to melt the minerals making up the overlaying and surrounding granite, forming a growing mass of granitic magma. Granitic magma is highly viscous and extremely gas-charged. Although it rose only very slowly, the granitic magma advanced upwards by melting even more of its own overlying granitic rock. At some point, radial fractures began to form around the rising mass of granitic magma. These fractures allowed steam eruptions to vent gas. Shortly after, with the overlying granitic rock severely weakened by the fractures, the highly gas-charged granitic magma erupted. The land to a distance of 200 miles in all directions was decimated. Pyroclastic flows, the most destructive eruptive features known, swept across the countryside. Ash fell across the country from the eruption site to the Atlantic Ocean. Ash polluted the world’s atmosphere, blocked the energy of the Sun, and plunged the Northern Hemisphere into a frozen wasteland for years. Can such an eruption occur in the Yellowstone region again? All the evidence suggests that the magma chamber below Yellowstone Park is current rising. According to the director of the Yellowstone Volcanic Observatory, it is not a question of whether or not another super-eruption CAN happen; it’s a question of WHEN it will happen!. . T. his . is a map of Pompeii's famous volcano called . Mount . Vesuvius. . How many volcanoes are there in the . world?. There are around 1510 'active' volcanoes in the world. We currently know of 80 or more which are under the oceans. . VOLCANOES.. What is a volcano?. A volcano is a mountain that opens . below . to a pool of molten rock . called a magma chamber below . the surface of the earth. When . the pressure . builds up, eruptions take place. . What is a Volcano. Volcano: a weak spot in the crust where molten rock (magma) comes to the surface. Most volcanoes are located around subduction zones and hot spots. Over 75% of worlds volcanoes are found . Macy and Caitlyn . Contents Page. 3 Earthquakes. 4 Volcanoes. 5 Hurricanes. Earthquakes. Put simply, an earthquake is a shaking movement of the ground. It can be a slight tremor or a violent juddering. Earthquakes are caused by sudden die. You can think of an Earthquake as a sudden release of energy Underground. The energy spreads out from the focus in waves called seismic waves. . The Pyramids ' Egypt. No list of the greatest structures of the ancient world would be complete without a mention of the famous Pyramids in Egypt. The Pyramid of . Djoser. , the oldest of the Pyramids, is estimated to have been built around the year 2630 B.C. Still today, experts have not been able to come up with a solid conclusion to explain how the ancient Egyptians built these perfectly aligned buildings using nothing but physical strength. It is presumed that as many as 100,000 slaves worked over the years to build these immense, mysterious tombs, which are still considered one of the Seven Wonders of the World.. Compare the features of volcanoes.. Describe the stages in volcano formation.. What are Volcanoes?. Volcanoes are vents through which molten rock and gas escape from a . magma chamber.. Volcanoes can differ. Mesopotamia. Geographic Location. The area lies between the . Tigris. & . Euphrates. Rivers in modern day Iraq.. Mesopotamia. Advances. Bronze. Metallurgy. Cuneiform. (wedge shaped writing). Pictograph: picture representation. Volcanoes. Volcano:. mountain that forms in Earth’s crust when molten material (magma) reaches the surface. . Remember, . magma . is molten rock below ground; . lava. is molten rock at the surface. . https://www.google.com.au/maps/place/Mexico/@23.6260333,-102.5377501,2681675m/data=!3m1!1e3!4m2!3m1!1s0x84043a3b88685353:0xed64b4be6b099811. http://www.timeforkids.com/destination/egypt/native-lingo. The Pyramids ' Egypt. No list of the greatest structures of the ancient world would be complete without a mention of the famous Pyramids in Egypt. The Pyramid of . Djoser. , the oldest of the Pyramids, is estimated to have been built around the year 2630 B.C. Still today, experts have not been able to come up with a solid conclusion to explain how the ancient Egyptians built these perfectly aligned buildings using nothing but physical strength. It is presumed that as many as 100,000 slaves worked over the years to build these immense, mysterious tombs, which are still considered one of the Seven Wonders of the World.. About 1500. Bellringer. Begin volcano video and questions. Objective. Pick one way to trigger a tsunami (1). Include one real life example (1). Describe how a tsunami wave is different from a wind wave (2). Redeemer. Location‎. : ‎Rio de Janeiro, . Brazil. Importance. : It is an important icon of Brazilian Christianity, and it has also come to symbolize Rio. It is the fifth largest statue of Jesus in the world, and was also at one point the world's tallest Art Deco statue.