GEO_Vocab_GP5_Volcan Flashcards
pyroclastic material
all rock fragments created by explosive eruptions
Mountains can also be created through _____________________.
Volcanism
destroy everything in their path, covering everything with molten rock and lighting many things on fire. However they are slow enough for people to get out of the way of , travelling at speeds of 1-30 km/hr based on lava thickness and slope steepness.
lava flows
A mixture of water and rock fragments that speed down the side of a volcano pulverizing everything in its path.
lahur
A mix of hot gases and pyroclastic materials. They move very fast and can destroy everything in the path.
pyroclastic flows
A mixture of pyroclastic rock fragments thrown in the air by an eruption
tephra
volcano
A mountain that forms when molten rock cools on earth’s surface
pyroclastic flows
A mix of hot gases and pyroclastic materials. They move very fast and can destroy everything in the path.
small volcanos made entirely of pyroclastic materials. They have steep slopes with narrow bases and erode away easily. Sunset Crater near Flagstaff is one
cinder cone volcanoes
cinder cone volcanoes
small volcanos made entirely of pyroclastic materials. They have steep slopes with narrow bases and erode away easily. Sunset Crater near Flagstaff is one
explosive eruption
clouds of debris and gas shoot out of the volcano. Lava is blown into the air where it hardens as it flies. Ash from these can stay in the upper atmosphere for years.
Landslides
Often caused by volcanoes, they often destroy part of the volcano itself and can bury villages.
Made from layers of both lava and pyroclastic materials. They have broad bases and tend to become steeper towards the summit. They are very common and examples include Japan’s Fuji and Mount Vesuvius
composite volcanoes (strato volcanoes)
composite volcanoes (strato volcanoes)
Made from layers of both lava and pyroclastic materials. They have broad bases and tend to become steeper towards the summit. They are very common and examples include Japan’s Fuji and Mount Vesuvius
clouds of debris and gas shoot out of the volcano. Lava is blown into the air where it hardens as it flies. Ash from these can stay in the upper atmosphere for years.
explosive eruption
all rock fragments created by explosive eruptions
pyroclastic material
hot spot
volcanoes can also be formed from magma that comes from deep within the Earth. A ____ _____ is the location where a column of rising magma, called a mantle plume intersects the Earth’s surface.
Often caused by volcanoes, they often destroy part of the volcano itself and can bury villages.
Landslides
When a fault is under stress the rock will bend and deform until enough stress is applied to cause the energy to be ____________.
Released
can form when thin lava runs out of many cracks in the ground, or fissures and spreads evenly over the ground
lava plateau
built out of layers of lava from multiple nonexplosive eruptions. They tend to spread out over a wide area and have gently sloping sides. They can also be enormous. Hawaii’s Mauna Kea is one which when measured from the ocean floor to the tip is the tallest mountain on Earth.
shield volcano
An island formed by the sinking of a previous island and its fringing coral reef.
Atoll
lava plateau
can form when thin lava runs out of many cracks in the ground, or fissures and spreads evenly over the ground
Volcanism
Mountains can also be created through _____________________.
A mountain that forms when molten rock cools on earth’s surface
volcano
tephra
A mixture of pyroclastic rock fragments thrown in the air by an eruption
non-explosive eruptions
involves relatively calm rivers of lava called lava flows
Atoll
An island formed by the sinking of a previous island and its fringing coral reef.
lava flows
destroy everything in their path, covering everything with molten rock and lighting many things on fire. However they are slow enough for people to get out of the way of , travelling at speeds of 1-30 km/hr based on lava thickness and slope steepness.
lahur
A mixture of water and rock fragments that speed down the side of a volcano pulverizing everything in its path.
involves relatively calm rivers of lava called lava flows
non-explosive eruptions
Released
When a fault is under stress the rock will bend and deform until enough stress is applied to cause the energy to be ____________.
volcanoes can also be formed from magma that comes from deep within the Earth. A ____ _____ is the location where a column of rising magma, called a mantle plume intersects the Earth’s surface.
hot spot
shield volcano
built out of layers of lava from multiple nonexplosive eruptions. They tend to spread out over a wide area and have gently sloping sides. They can also be enormous. Hawaii’s Mauna Kea is one which when measured from the ocean floor to the tip is the tallest mountain on Earth.
magma; lava
molten rock underground . When it comes to the earth’s surface its called ______
molten rock underground . When it comes to the earth’s surface its called ______
magma; lava
caldera
formed when a magma chamber empties and its roof collapses, creating a sunken-in-hole in the ground.
formed when a magma chamber empties and its roof collapses, creating a sunken-in-hole in the ground.
caldera
