Daily Archives: April 20, 2008

Rain clouds volcanic activity

Image of a raindrop Visitors to Hawai`i from northern climates arrive with dreams of sunny beaches and gentle breezes. But this winter, rains of biblical proportions caused flooding, landslides, sewage spills, beach and park closures, and a catastrophic dam failure … Continue reading

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Weathering

Weathering is breakdown of rock to form sediment.  The Rock Cycle The three major types of rocks, igneous, sedimentary, and metamorphic rocks are interrelated by a series of natural processes. Igneous rocks form from the cooling and crystallization of hot … Continue reading

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Origin of Petroleum: Biogenic Theory

Most geologists view crude oil and natural gas as the product of compression and heating of ancient organic materials over geological time. Oil is formed from the preserved remains of prehistoric zooplankton and algae which have been settled to the … Continue reading

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Abiogenic petroleum origin

The theory of abiogenic petroleum origin holds that natural petroleum was formed from deep carbon deposits, perhaps dating to the formation of the Earth. The ubiquity of hydrocarbons in the solar system is taken as evidence that there may be … Continue reading

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