PPT-Magnetic Survey of a Lava Dike

Variations with Depth and Temperature AARON BAGNELL Approximating Earths Magnetic Field Earths magnetic field can be roughly approximated by that of a dipole tilted at an angle of 115 degrees from Earths axis of rotation. In addition magnetic fields create a force only on moving charges The direction the magnetic field produced by a moving charge is perpendicular to the direction of motion The direction of the force due to a magnetic field is perpendicular to the dir Gwen . Nytes. Composition. The magma in this type of volcano is made of basaltic-andesitic materials. The magma has an intermediate viscosity, so . it’s mildly explosive. It also consists of a lot of gases, so when the lava cools and hardens in the air, gas bubbles get trapped inside. The particles fall back down as cinders, and pile around the vent.. 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. the 2-D . temperature distribution of multiple lava . d. ikes . c. ooling over time. By Sky Lovill. Modeled . a set. . of . 5. lava . dikes with different initial . conditions cooling over 1 hour . . Hazards. Limiting Danger from Hazards. Warning . Know when event is happening. Education . Know what to do when an event happens. Research . Know what will happen in an event. ‘Water’ Volcanoes. 1/16/13 Volcanic Landforms Notes. Formed from . l. ayers of Lava and ash. shield volcanoes. cinder cone volcanoes. composite volcanoes. lava plateaus . Formed from magma . Volcanic necks. Dikes. Sills, batholiths. 78Teacher Page Preparation In ClassWrap-upExtensions Lava Layering 79 Procedurebaking soda vinegar.food coloring;playdough Key Words Materialsbaking sodameasuring cupPurpose Lava Layering 80 Res 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.. *Gazetteer . of Planetary Nomenclature. , International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN), accessed January 31, 2014.. Elysium Planitia is a large plain on the planet Mars. It covers an area of 3,000 km. Investigate and describe that magnets can attract magnetic materials and attract and repel other magnets.. What is Magnetism?. Let’s . Explore. What happens if you put together two magnets?. Do they become stronger together? . Design High Water Elevation Stream, channel, etc. Berm Stability Line Figure 1 Interior Drainage - Dikes to preve Magnetic . Energy. . once an ancient mystery, is now recognized as the strongest natural force in the universe. . . Our Earth. . is a giant magnet and all life developed under the influence of the earth’s magnetic field. .