GEOL 1001 Chapter : Geol Chapter 5
Document Summary
The character of the lava flow depends on the viscosity of the lava erupted. ____ lava is less viscous than _____ lava and thus flows out as a ___: basaltic/rhyolitic/thin sheet. Which is not a form of lava: lapilli. Which of the following statements is true of low viscosity lava: all of the above are true. An avalanche of hot ash flowing down the flanks of a volcano is known as a ____: tiny shards of glass / pyroclastic flow. Volcanoes erupt lava, pyroclastic debris, and gas: true. A lahar is ____: a volcanic mudflow and debris flow. If a volcano is erupting a gassy, felsic magma, then it is more likely to be____: an explosive eruption. Mafic lava erupted at a submarine volcano will produce: pillow basalt. Which of the following statements about rhyolite lava is true: all of the above statements are true. Which of the following are tectonic boundaries at which volcanism occurs: all of the above.
