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02 022009 3M ESPE AGESPE Platz82229 Seefeld. Frequency and Quantity. There are ~ 550 historically active volcanoes. About 60 erupt annually. The majority are 1) at the edge of continents and 2) underwater. Dormant volcanic cone in Japan. What causes volcanoes?. Basaltic Lava – low silica content, low viscosity, low gas content. Hot spots – magma moves up from lower mantle and plates move over it . Ex. Hawaii. (note: see video on favorites). Shield Volcanoes. Chapter 9. Lesson 2. Videos. http://video.nationalgeographic.com/video/kids/forces-of-nature-kids/volcanoes-101-kids/. Volcanoes 101 National Geographic.. https://www.youtube.com/watch?v=cQMB7o3SXOw. WHAT IS A CROSS SECTION. A cross section is the . shape. you get when . . cutting straight across an object.. The cross section of this object is a. triangle. It is like a view into the . inside. of something made by cutting through it.       . Flight into Valles Marineris. Geological Processes. Chaotic Terrain. Forms when subsurface water or ice causes a loss of support and the ground collapses.. Graben. A depressed block of land bordered by parallel faults (graben is German for ditch).. Earth Science Fall . 2012 . Vocabulary: . aa. – jagged chunks of lava formed by rapid cooling on the surface of the lava flow . Vocabulary:. Caldera- large basin-shaped depression formed when an explosion destroys the upper part of a volcanic cone or when the magma chamber below a volcano is emptied during an eruption. A volcano is a fault in earth’s crust that allows magma to escape.. We call the release of magma an eruption.. How does that work?. Magma is the layer of melted rock that . lies just below earth’s crust.. Chapter 9 . Section 1. Volcanic Eruptions. During an eruption . magma. is forced to the Earth’s surface. Magma. – molten rock below the Earth’s surface. Lava – magma that . flows. on the Earth’s surface. . There are number of interesting issues currently being litigated in school trademark cases. A FAILING GRADE. SCHOOLS AND APPAREL TRADEMARKS. . There are number of interesting issues currently being litigated in school trademark cases. HERE’S . WHY …. 1. Top Ten Reasons Why Business Owners Should Care About Trademarks. Trademarks:. are encountered by everyone. influence consumers and help products or services stand out. create a brand identity for the business. What are volcanoes?. Does anyone know what a volcano is?. A volcano . is a landform (usually a mountain) where . liquid rock . erupts through the surface of the planet. .. The name "volcano" has its origin from the name of Vulcan, a god of fire in Roman mythology.. 1 Grades 5 - 12 Meet at Mauna Ulu 9:30 - 11:30 Introduc�on: Mauna Ulu is located along the east ri� zone of Kīlauea Volcano. United StatesDepartment ofAgriculture PacificRegionService - Rough floor, watch your step, low ceiling, - Cave is open late May throughOctober. Closed during the winter months. - Visibility is z Tubes and Permanently . Shadowed . Regions . Sarah Withee. LSIC . Extreme Access PNT subgroup lead. Johns Hopkins Applied Physics Laboratory. Sarah.withee@jhuapl.edu. Introduction . to the Lunar Surface Innovation Consortium .