Geology Questions
Explore questions in the Geology category that you can ask Spark.E!
If volcano C continues to erupt and has runny lava flowing out of long thin cracks what type of feature will form after many layers have been added?
Analyze the ash distribution of the Mt. St. Helen's eruption. Which direction did the ash go?
If the magma chamber beneath volcano B empties and then collapses, what kind of feature will form?
True or False: In addition to the physical clues ( the bulge of land, tilt, earthquake measurements), long-term study of the volcano behavior and past eruptions can help lead to a possible prediction of a volcanic eruption.
True or False: Pyroclastic flows are when there is a lot of hot lava, gas, & rocks spewing from the volcano at very fast speeds. (Hint: This happened at Mt. St. Helens)
Volcanoes with LOW amounts of dissolved gas and LOW amounts of silica in the magma tend to be?
90% of the world's volcanoes occur in a region known as?
Volcanoes occur because of the interactions of the inside and outside of the earth. When there is an opening between the tectonic plates (either caused by convergent or divergent plates or a hotspot), a volcano can form if there is magma being propelled outward. Where do you see lava?
VEI stands for Volcanic Explosivity Index. This scale measures the volume of lava & tephra & the height it reached post-eruption. Thus, the higher the VEI number, the more erupted material & the higher it went. True or False: High VEI automatically means more deaths occurred due to the eruption.
Subduction zone volcanoes occur when one plate is pushed down into the mantle by another at a convergent boundary. This causes?
Several kilometers from a volcano, a geologist observes an old lava flow made up of dark-colored basalt rock. The geologist infers that the lava must have had?
Identify the feature that forms at this boundary shown at B in the diagram "Location of Volcanoes".
Use the diagram above titled "Types of Volcanoes" to answer questions 6 -8. What kind of eruption would you expect from volcano A?
Can Transform boundaries also occur along mid-ocean ridges?
Do subducting plates move faster or slower than other plates?
T or F: Past movements of the plates (millions of years ago) determine today's climate.
Does a continent's location in relation to the equator and poles affect the continent's overall climate?
Where would you expect to find the oldest rock on the ocean floor?
The movement of convergent boundaries eventually causes continents to...
Along what feature of the ocean floor does sea-floor spreading begin?