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=3.3 Volcanic landforms=

Vocabulary

 * shield volcano**-a wide, gentally sloped, volcano that produce quiet eruptions
 * cinder cone**-a steep, cone shaped volcano that produce explosive eruptions
 * composite volcanos**-tall, cone-shape volcanoes that produce two layers of material
 * caldera**-a volcano with a huge hole on the top of the volcano
 * volcanic neck**-a deposit of rock on the volcanoes pipe
 * dike**-a slab of volcanic rock made when magma forces itself across rock layers
 * sill**-a slab of volcanic rock made when magma squeezes between layers of rock
 * batholith**-a magma chamber that has aready cooled down

Outline

 * Volcanic landforms**
 * Landforms from lava and ash
 * Many rocks were formed from lava create a variety of landforms
 * Shield volcanoes
 * shield volcanos produce quiet eruptions and they formed the Hawaiian islands
 * Cinder cone volcanoes
 * Cinder cones erupt explosively and may produce ash, cinders, and bombs
 * Composite volcanoes
 * composite volcanoes are tall cone shaped volcanoes which has layers of lava and ash
 * Lava Plateaus
 * some eruptions may form plateaus instean of mountians
 * its made when lava pours out of cracks in the ground
 * eventually, the lava piles up on cooled lava making the plateau higher and higher
 * Calderas
 * calderas are volcanoes that erupt all the magma out of the chamber
 * eventualiy, the top part of the volcano collapses
 * Soils from lava and ash
 * The hard surface of the lava may nreak down to soil to help support plant life
 * Landforms from magma
 * Destructive forces may wear away softer rock and expose hard rock
 * Volcanic necks, dikes and sills
 * volcanic necks harden in volcinic necks
 * Dikes and sill push through layers of rock
 * Bathotiths
 * bathotiths are cooled magma chambers that that creates many mountian ranges
 * Dome mountains
 * When magma is blocked by layers of rocks it pushes up the rock forming Dome mountains