volcanological terms

What Is The Difference Between AA And Pahoehoe Lava?

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What Is The Difference Between AA And Pahoehoe Lava? Pahoehoe is lava that in solidified form is characterized by a smooth, billowy, or ropy surface, while aa is lava that has a rough, jagged, spiny, and generally clinkery surface. In thick aa flows, the rubbly surface of loose clinkers and blocks hides a massive, relatively

What Are Three Primary Methods Of Monitoring Volcanic Activity?

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What Are Three Primary Methods Of Monitoring Volcanic Activity? A joint seismic, tilt, and GPS monitoring site located at Observation Rock. What are three primary methods of monitoring a volcano to predict whether or not it will erupt? Volcanologists use many different kinds of tools including instruments that detect and record earthquakes (seismometers and seimographs),