Basalt

Lesson 1: Earthquakes and Volcanoes Layers of the Earth Earth is made up of three layers: crust, mantle and core. The outer layer is the crust, the middle layer is the mantle and the inner layer is the core. Earth's crust and upper mantle are broken into large plates that move slowly. Figure 1 shows the layers of the Earth. Figure 1: Layers of the Earth Plate tectonics The Earth's surface is formed of large pieces of rock called plates that are also called tectonic plates. These plates…

Volcanoes exist all around the world. They are the weakest spot on the Earth’s crust where hot lava comes to the surface. Volcanic eruption results from magma.The summit of magma sometimes they rise to the vent instead of the crater. Volcanos can also be by plate boundary. When lava comes to the surface ras rises to the crater. Mount St Helens is located in the U.S. in Washington. Mount St Helens is on the southwest of Washington. Mount St Helens is a dormant volcano. In its spectacular…

Web Project 2 http://pubs.usgs.gov/fs/2000/fs060-00/ The most recent significant eruption of Mount Hood happened in the 1790’s shortly before Lewis & Clark passed through the area. There was less significant explosive activity around the middle of the 17ths century. After this time the volcano has been quiet and inactive. There will come a time when Mount Hood will erupt again. How will those eruptions impact us and what might they look like? Through study of Mount Hood’s past volcanic behavior…

Millions of years ago our Earth was called Pangea. This was the name for the Earth as it was when basically all the land/continents were attached as one giant portion of land surrounded by sea. As millions of years passed, the portion of land known as Pangea began to spread apart into several portions of land until it could no longer be called Pangea. Finally today, we know Earth as being a vast planet with several continents that are a result of the spread of Pangea. This is understood to be…

Amphibolite is a foliated metamorphic rock. The orientation of the foliation is 251/75. It has a gneiss foliation and stripes of minerals segregation. Minerals such as white Quartz, shinny Plagioclase, green Amphibole, and pistachio green (yellowish) epidote were seen on the fresh surface. Greenschist is coarse grained metamorphic rock that contains minerals such as yellow epidote, flakes of mica and green serpentine and chlorite. Metasediments with various colors were seen such as Quartzite…

All volcanoes are amazing to see in action. Cinder Cone Volcanoes, Stratovolcanoes, and Shield Volcanoes are different types of volcanoes with their similarities and differences. All volcanoes are magnificent features of Earth’s crust. One type of volcano is a cinder cone. “A cinder cone volcano doesn’t have any horizontal layers of solid lava flows mixed with layers of other rock,”stated on zmescience.com. Cinder cone volcanoes are sloped like a mountain, although they have a large number of…

Southern Europe includes countries of the Iberian peninsula (Spain and Portugal), the Italian peninsula, southern France, and Greece. Also, includes the Balkan countries of Southeast Europe. It is a mountainous area and a Mediterranean Vegetation region that has mild climate. Alpine Orogeny is a phase formed fifty million years ago when the Eurasian continent plate and African continent plate collide together. The Alpine Orogeny produced intense metamorphism of rocks, crumpling of rock strata,…

Geo-Process’s Results Billions of years ago, the earth was not made up of seven continents, as it is today. It was one big landmass called Pangea. Meaning all land. Pangea went under a process called continental drift, founder by Alfred Wegener, which is caused by geo-process. Geo-process results in changes to the earth's surface because of tectonic plates causing mountain building, earthquakes, and volcanos. First off, convergent plates cause many different types of mountains, like the…

Earthquakes and volcanoes go hand in hand like peanut butter and jelly or rice and beans. Where there are volcanos there are usually tectonic plates beneath them either pushing against or pulling away from one another. Take for instance the Cascade Mountain Range in Northern California and stretches through Oregon and into Vancouver, British Columbia and sits northeast of the San Andreas Fault line that runs 750 miles through California. This fault creates the tectonic boundary between the…

You may hear the word volcano and think scorching hot lava, but there is more to these heated mountains than you think. Volcanos can be quit dangerous but we do benefit from them. Volcanos do not only affect us, they infect our environment in ways most people may not know. To start off, the population of volcanos has grown tremendously. In the 1900’s, “roughly 60 (volcanos) erupted each year” as stated in the first paragraph of the article “How Many Active Volcanoes Are There”. Now, it is know…