What is the depth of this newly forming Hawaiian island, Loihi?
Hawaiian eruptions are extremely violent and produce large p…
Hawaiian eruptions are extremely violent and produce large pyroclastic flows.
Molten rock that reaches Earth’s surface is known as _______…
Molten rock that reaches Earth’s surface is known as _______.
Which of the following is the name for a fine-grained, felsi…
Which of the following is the name for a fine-grained, felsic igneous rock?
The person in the figure below was encased by a pyroclastic…
The person in the figure below was encased by a pyroclastic flow.
What is the difference between a sill and a dike?
What is the difference between a sill and a dike?
The island depicted in the diagram acts as …
The island depicted in the diagram acts as .
The composition of most magma is 40%-75% ________ by weight.
The composition of most magma is 40%-75% ________ by weight.
Igneous rocks high in feldspars and silicates are known as f…
Igneous rocks high in feldspars and silicates are known as felsic rocks.
_______ igneous rocks are composed of dark-colored minerals…
_______ igneous rocks are composed of dark-colored minerals rich in magnesium and iron.