By: Richard Serra
For thousands of years, volcanoes were thought to be as a result of angry Gods, and could never be thought of as a natural occurrence that has been going on since the forming of the planet. They are pretty mysterious when you think of it...
By: Elizabeth M Young
The San Andreas fault traverses the Western edge of California, beginning at the Mexican border, easing toward the West, and ending at Eureka, CA. This monster has been the source of absolute concern, as it transects two of the world's megalopolises: the Bay Area complex...
How igneous rocks are formed
By: Hai Shunxi
Earth scientists divide rocks into three broad categories based on how a rock forms. These three categories are called igneous, sedimentary, and metamorphic rocks. Although sedimentary rocks are the most common type at the earth’s surface, igneous rocks are by far the most common...
Why geologists are so concerned with the San Andreas Fault
By: Hai Shunxi
Geologists are not the only people concerned about the San Andreas Fault – they just understand it a little better than most people. To appreciate why this major geological feature is so worrisome to so many people, it helps to know what the San Andreas...
Thickest mapped sedimentary deposits in Illinois
By: Hai Shunxi
Bedrock exposures across the majority of Illinois are sedimentary in origin, ranging in age from Cambrian along the LaSalle Anticline near Joliet to scattered outcrops of Cretaceous and Tertiary age at sites along the Mississippi River. Pennsylvanian (Late Carboniferous) rocks blanket more than half the...
What geologists do
By: Hai Shunxi
You may know geologists are earth scientists, and may have seen one interviewed after an earthquake or a new fossil discovery. Most people have never met a geologist, though, and don't know how important the profession is to their lives. What do geologists do, and...
By: Janet Grischy
At 800 miles long and 10 miles deep or more, the San Andreas Fault is huge. It has a long history of creating devastating quakes. At least one section of the fault holds enormous energies stored up over centuries, locked in and liable to break...
By: Janet Grischy
Perhaps 100 tonnes of the rare earth metal Dysprosium are mined each year. Of that, 99% comes from China. Most is unearthed in Guangdong province, or in neighboring Jiangxi. Half of China’s supply is illegally exported, and the trade in it is linked to...
Geophysics: An introduction
By: Hai Shunxi
Geophysics is an earth sciences that combines geology with physics. Geophysicists examine the Earth's physical properties to better understand its structure and the forces that shape it. Geophysics is divided into two disciplines, whole-earth geophysics and exploration geophysics. WHOLE-EARTH GEOPHYSICS As the name suggests, whole-earth...
How to prepare for an earthquake
By: Laura Lovell
Haiti got hit with a massive earthquake yesterday and it looks like this has the makings of another catastrophic event, with over 100,000 feared dead according to Haiti's consul general to the U.N., Felix Augustin. Haiti is a small country of 8.7...

 

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