Monthly Archives: April 2008

Weathering

Posted on April 20, 2008 by Rashid Faridi

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 →

Posted in Uncategorized | Tagged , | 17 Comments

Origin of Petroleum: Biogenic Theory

Posted on April 20, 2008 by Rashid Faridi

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 →

Posted in Archaeology | 5 Comments

Abiogenic petroleum origin

Posted on April 20, 2008 by Rashid Faridi

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 →

Posted in Uncategorized | Tagged | 1 Comment

Rain

Posted on April 19, 2008 by Rashid Faridi

Rain is a type of precipitation, a product of the condensation of atmospheric water vapor that is deposited on the Earth’s surface. It forms when separate drops of water fall to the Earth from clouds. Not all rain reaches the … Continue reading →

Posted in Agriculture, climate change, culture | 3 Comments