Martians in a deep freeze
Article Abstract:
An American Geophysical Union Meeting in San Francisco, CA, discussed the continuing search for Martian life and the possible hazards of bringing martian samples to Earth. Although previous analyses of martian rocks showed no possibility of biological activity on Mars, a new perspective views Mars with a colder environment but also with transient rivers and lakes. Martian geological studies claim that, about 3.8 billion years ago, Mars probably had a cool climate with an abundant supply of groundwater. However, Mars should have now entered its long frozen era.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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You can pile it only so high
Article Abstract:
Sicily's Mount Etna volcano may be liable to catastrophic landslides resulting from the mountain's structure. Etna consists of heavy rock overlaying soft clay, which is forcing the mountain's southeastern portion to move slowly outward at about a centimeter a year. This movement means that further eruptions may initiate a devastating 'sector collapse' resembling the massive landslide that followed Mount St. Helens's eruption in 1980. Comparison with Hawaii's volcanoes also suggests that Etna is likely to produce large landslides.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Dead trees tell tales
Article Abstract:
The tons of carbon dioxide discharging from the soil at Mammoth Mountain in California is an indication of an active magma source from the core of the mountain. The Long Valley volcanic basin comprises the caldera itself, the Inyo volcanic chain and Mammoth Mountain. Little research has been done on Mammoth Mountain despite the long period of volcanic activity occurring in the past. The heavy snow and the wilderness are barriers to research in this caldera complex.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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