Monthly Archives: April 2008

Lessons from St. Helens:Science of Prediction of Volcanoes

Posted on April 24, 2008 by Rashid Faridi

When earthquakes started jolting Mount St. Helens in March, 1980, little infrastructure was available to monitor the mountain or warn of an eruption. As the quakes continued, scientists scavenged seismographs and surveying equipment to take the mountain’s pulse. Their agenda … Continue reading →

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Ozone Hole

Posted on April 23, 2008 by Rashid Faridi

Ozone hole splits in two Hole over Antarctica also markedly smaller this year, scientists say False-color satellite imagery from Sept. 26 shows the double ozone hole as dark blue splotches around Antarctica. Click on the video button to watch an … Continue reading →

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Volcanic Landforms,Volcanoes and Plate Tectonics

Posted on April 23, 2008 by Rashid Faridi

Volcanic Landforms Volcanic landforms are controlled by the geological processes that form them and act on them after they have formed. Thus, a given volcanic landform will be characteristic of the types of material it is made of, which in … Continue reading →

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Volcanic Gases and Their Effects

Posted on April 23, 2008 by Rashid Faridi

Sulfur dioxide gas creates air pollution in Hawai’i Volcanic gases are the driving force of eruptions Magma contains dissolved gases that are released into the atmosphere during eruptions. Gases are also released from magma that either remains below ground (for … Continue reading →

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