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Landslides- II

By Afroz Ahmad Shah The famous Portuguese Bend landslide in the summer of 1956, when people noticed that the ground beneath them had begun to move, remind us of the potential of such forces to move the ground (Figure, a). It is estimated that a 105-hectare (260-acre) section of the slope was breaking free at [...]

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Earth’s Internal Structure-II

By Afroz Ahmad Shah As I have discussed in my previous article, that through the vast amount of evidences obtained from the earthquakes waves, meteorites, which fall on Earth, magnetic fields, some rare exposures of the deeper section of the Earth’s layers, and other physiochemical properties demonstrate that Earth is made up of three major [...]

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Earthquake Waves

By Afroz Ahmad Shah During any earthquake a large amount of strain energy is released, which travels as waves in all directions through the layers of the Earth, reflecting and refracting at each interface. The waves are called seismic waves or earthquake waves. These are similar to sounds waves, which are created through a disturbance [...]

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Plate Tectonics And The Future World

By Afroz Ahmad Shah How do the earth scientists know the internal configuration of Earth? These people obviously cannot enter within the deeper sections of Earth; therefore, whatever we listen to or read about the internal structure of Earth is through indirect means. It is like an X-Ray of our body. The best way scientists [...]

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Earthquakes: Myths And Science

By Afroz Ahmad Shah Earthquakes continuously pose unremitting threats to our young, 10,000-year-old, civilization. There are ample evidences to map a complete profile of vulnerabilities, which we have been facing in the recent past. The devastations of Acehnese and Thai coasts in 2004, of Kashmir and New Orleans in 2005, of southwest Java in 2006, [...]

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A new geological epoch and the sixth mass extinction

By Afroz Ahmad Shah The geological records tell us that Earth is about 4.5 to 4.6 billion years old. This number is calculated by various vigorous scientific investigations, which deal with the dating of minerals and other records preserved within rocks. Accordingly, Earth has been divided into several geological time periods. Throughout its past, it [...]

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