VOLCANIC LANDFORMS AS A VOLCANO ERUPTS WHAT MAKES

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VOLCANIC LANDFORMS AS A VOLCANO ERUPTS WHAT MAKES CERTAIN LANDFORMS? ? https: //www. youtube.

VOLCANIC LANDFORMS AS A VOLCANO ERUPTS WHAT MAKES CERTAIN LANDFORMS? ? https: //www. youtube. com/ watch? v=w. I 1 wl. XJz 1 lk

 • Billy Nye Volcanoes • https: //www. youtube. com/watch? v=Ib. DZBVLb. FJ 4

• Billy Nye Volcanoes • https: //www. youtube. com/watch? v=Ib. DZBVLb. FJ 4

FROM LAVA AND ASH

FROM LAVA AND ASH

SHIELD VOLCANO • Lava flows out gradually building a wide gently sloping mountain https:

SHIELD VOLCANO • Lava flows out gradually building a wide gently sloping mountain https: //www. yout • Gentle eruptions ube. com/watch? v=Hdh. ARb 2 PGq A Start at 1: 11

CINDER CONE VOLCANO • When lava has a high viscosity it produces ash, cinder

CINDER CONE VOLCANO • When lava has a high viscosity it produces ash, cinder and bombs which all build up around the vent in a steep, cone-shaped hill (or small mountain) • https: //www. youtube. com/watch? v=Hdh. ARb 2 PGq. A

FORMED BY LAVA AND ASH COMPOSITE VOLCANO • Tall, cone shaded mountains in which

FORMED BY LAVA AND ASH COMPOSITE VOLCANO • Tall, cone shaded mountains in which layers of lava alternate with layers of ash • Most violent eruptions • https: //www. youtube. com/watch? v=-H_HZVY 1 t. T 4 https: //w ww. youtu be. com/ watch? v =Hdh. AR b 2 PGq. A Start 1: 39

FORMED BY LAVA AND ASH LAVA PLATEAUS • High, level Ares that have been

FORMED BY LAVA AND ASH LAVA PLATEAUS • High, level Ares that have been built up over time from lava seeping out of several cracks then traveling a distance before cooling and solidifying • Formed from fissure volcanoes

FORMED BY LAVA AND ASH CALDERA • https: //www. youtube. com/watch? v=BBGm. Xs. ZHInw

FORMED BY LAVA AND ASH CALDERA • https: //www. youtube. com/watch? v=BBGm. Xs. ZHInw • Huge hole left by the collapse of a volcanic mountain • Composite volcanoes

FROM MAGMA

FROM MAGMA

VOLCANIC NECKS • Forms when magma hardens in a volcano's pipe • softer rock

VOLCANIC NECKS • Forms when magma hardens in a volcano's pipe • softer rock and round the pipe erodes away exposing hard rock.

DIKES • Formed when magma forces itself across rock layers and hardens • Made

DIKES • Formed when magma forces itself across rock layers and hardens • Made from composite volcanoes • Vertical layers • https: //www. youtube. com/watch? v=6 lo. GYTCBVqo

SILL • Formed when magma forces itself across rock layers and hardens • Horizontal

SILL • Formed when magma forces itself across rock layers and hardens • Horizontal layers

BATHOLITHS • Mass or rock formed when a large body of magma cools inside

BATHOLITHS • Mass or rock formed when a large body of magma cools inside the crust • “Half Dome”

DOME MOUNTAIN • Forms when an uplift pushed a batholith or smaller body of

DOME MOUNTAIN • Forms when an uplift pushed a batholith or smaller body of hardened magma toward the surface.

GEOTHERMAL ACTIVITY • Magma, a few km under earths surface, heats underground water and

GEOTHERMAL ACTIVITY • Magma, a few km under earths surface, heats underground water and forms …. • Hot Springs • Geysers

HOT SPRINGS • Groundwater is heated by a nearby body of magma or hot

HOT SPRINGS • Groundwater is heated by a nearby body of magma or hot rock and eventually rises to the surface to collect in a natural pond. • Can also heat streams

GEYSER • Fountain of water and steam that erupts from the ground when a

GEYSER • Fountain of water and steam that erupts from the ground when a buildup of pressure is released • https: //www. youtube. com/watch? v=_gyhvqb. Ia. OE