Earth Science

Corporate agriculture has numerous impacts on the environment, and while it is capable of producing food (of sorts) cheaply, it is literally costing the earth. Monocultures Almost all forms of corporate agriculture are monocultures that replace the thousands of species…
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There are basically two ways of classifying sedimentary rocks, either by how they originated or their composition. The latter takes into account such matters as whether they contain primarily coarse-textured sands or fine clays, or whether they have a high…
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These days the environment is under a very bright spotlight, from global warming to nonrenewable fuel sources such as coal. Hundreds upon thousands of articles, as well as a movie thanks to Al Gore, have been created warning us about…
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Sedimentary rocks are often found around bodies of water or aqueous environments. This is because water is an important element in the formation of sedimentary rocks. An example of how a sedimentary rock forms is through erosion of a rock…
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Sedimentary rocks are one of the three types of rocks that form the earth’s surface. The other two are igneous and metamorphic rocks. Sedimentary rocks are formed by the accumulation of small rocks particles in the earth surface through erosion,…
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Our planet is a complex object. Its composition is varied, and the processes which drive change are unpredictable. The distance from the surface of the earth to its centre is over 6000 kilometres and mankind has succeeded in drilling just…
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Gemstones are classified into two categories, precious and semi-precious stones. Traditionally the common precious stones are diamonds, rubies, sapphires and emeralds. This classification dates back to ancient times and is based on the rarity and beauty of the stones. Precious…
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Sedimentary rocks, or rocks formed from sediment, dust, garden soil, particulates from the air, substances from lakes, rivers, creeks, and ponds that have become stationary, are of three basic divisions:   siliciclastic – or clastic – chemical and  biochemical.  And these,…
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The Earth is so much bigger than us—it’s hard to get a sense of its scale.  A good example of this is the difficulty in picturing the volcanic caldera in Yellowstone National Park that underlies all the geysers and hot…
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Geodes are geological rock formations. They occur in both sedimentary and certain types of volcanic rocks. Geodes are vugs  (a small cavity or hollow space inside a rock). They have concentric banding which means they share a common center. They also…
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