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Written by caryl
For hikers and mountaineers, El Capitan, or El Cap as it’s better known, is widely considered one of the most brutal climbs in the world. It’s also the world’s largest granite monolith (a large single upright block of stone), rising 3,600 feet on the north side of Yosemite Valley in Yosemite National Park. According to […]
Written by Esie
Honestly, I did not know there was so many types of coal until I researched for this post. But, before we get into that, let’s dive into what coal is. Coal is formed from decayed plant matter and is commonly found in sedimentary rock. Over half of the electricity produced in the United States is made […]
Written by Esie
The change of a caterpillar into a butterfly is called metamorphosis: meaning, to transform. A similar term- metamorphism – is used to describe the change of a rock into a new type of rock. Such change may be brought about by extreme heat or pressure. These are called metamorphic rocks. Based on their appearance and texture, metamorphic rocks […]
Written by Esie
In part 1 of this article we discussed fiery liquid rocks, like lava. However, most of the earth’s crust is covered by a layer of sand and mineral fragments, or sediments. In many places, heat and pressure have compacted these sediments into solid rock. This is called sedimentary rock. Over 75 percent of the earth’s surface is covered […]
Written by Esie
Igneous Rocks- The Fiery Ones Huge bubbles of hot, fluid rock called magma form deep in the earth’s mantle and squeeze towards the surface. Occasionally, magma forces its way through the earth’s crust by erupting out of a volcano. Once the magma flows from a volcano, it is called lava. As the lava cools, it eventually hardens […]
