By: Nancy Houser
Four billion years ago, Mars suffered a magnetic crisis which caused it to lose its magnetic field. Now, our own magnetic field is becoming weaker-a magnetic field where the continuous spin of our planet's liquid metallic core is generating its magnetic force field which protects...
By: Graham Duke
Anybody with a fleeting interest in geology can tell you that the three main classes of rocks are igneous, metamorphic, and sedimentary. Apart from just knowing their names, the geological processes that take place to form these rocks are really very fascinating.First, we'll draw...
By: Eve Redstone
Man has used cobalt since the earliest of times. The Egyptians, the Persians and the Chinese used it to impart a blue color to their pottery, glass and jewelery and ingots of cobalt blue glass have been recovered from Minoan shipwrecks and the ruins of...
The natural presence of copper in the environment
By: Effie Moore Salem
When copper is found in the atmosphere, it is only in small amounts and is on its way to earth, It does not float but is pushed with the wind and the rain. It is forced out of the surrounding air by the forces of...
By: Fiona Thompson
Although it is never found naturally in its free state, cobalt exists all around us in compound forms. These compounds can be found in small quantities in soil, in volcanic emissions, in seawater, in some animals and in the smoke emissions from forest fires. Further...
By: John Carter
Pegmatites come in two flavors simple and complex, or dirty. The complex pegmatites are the source of many rare minerals used both as gemstones, and rare metal ores. Pegmatites being relatively small in comparison to other mineral deposits lend themselves to small mining operations. Some...
By: April Starr
The Racetrack Playa in Death Valley California is home to the mysterious sliding rocks. Racetrack Playa is actually a dry lakebed within the Panamint Range of mountains. It stands at an elevation of 3711 feet. The sliding rocks range in size from small rocks to...
How mountains are created and destroyed
By: Rex Trulove
To most of us, mountains seem to be the epitome of long lasting permanence. Yet in geological time, they are fleeting and short lasting.There are three main ways that mountains are created. The first is through plate tectonics. When one crustal plate slams into...
By: Erinn Soule
Champagne and diamonds are most likely two words a girl cannot hear enough of and when put together in a jewelry sense, wonderful thoughts happen! Diamonds are a girl's best friend, so I am told. Champagne diamonds are an even better friend if you ask...
By: Sandra Douglas
"The pounding in my head is compounded exponentially by each bounce of the truck. The drive between stations is only 20 km but it might as well be 100. Once we arrive to our site we find a local farmer who is able to help...

 

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