Geology Questions
Explore questions in the Geology category that you can ask Spark.E!
Silica-rich igneous rock or magma with a relatively high content of potassium and sodium.
originally created from gases released from volcanic eruption.
1) Higher ... contents produce higher viscosities.2) .... lavas have higher viscosities.3) Amount of ...., the more ....., the more fluid the lava.
The ocean crust goes below the continental crust because?
Yellowstone National Park marks the location of a huge....
A volcano ________ forms in Earths crust when molten material reaches the surface.
Geologists classify volcanic eruptions as quiet or _________.
Japan and New Zealand are examples of strings of volcanic island known as
A volcano erupts quietly if its magma it is
Volcanoes form along the mid-ocean ridges, where two plates move together.
From what kind of lava does pahoehoe form
do all volcanoes form along plate boundaries?
How many years ago Wegener believed the continents originally broke apart
The Great Rift Valley in Africa has ____ boundary
Rock structures on different continents support this theory
Ocean floor rocks are ______ continental rocks
The Andes Mountain Range of South America formed at a _____ boundary
What do we call the moving blocks of earths lithosphere
Earths core is approximatly 5200 degrees C but it is solid iron, why isnt it melted?
explain how earthquakes and volcanos are related