Benefits of a Volcano
|There are so many bad things about volcanoes, but are there any benefits? Well there are a few benefits about volcanoes. They can provide new land for creatures and bigger animals. The Hawaii Island are formed by volcanic lava. The volcanoe's ash and lava put minerals in the soil of the Earth’s surface. Volcanoes provide humans with minerals from deep within the earths’ Crust. The minerals that volcanoes bring up are diamonds, gold and silver.|
|Some bad things about volcanoes are that the volcanic gases are deadly poisons! The toxic fumes can kill many people and animals. Like on August 1986, a small explosion on Lake Nyos, Cameroon, Western Africa, put out a cloud of volcanic gases that were extremely toxic. The fumes killed over 1,700 people who were living in that village. In that cloud the main killer was carbon dioxide, which is a heavy gas. It was hard to know if this cloud contained any carbon dioxide because it has now smell and it is difficult to detect. Many other volcanic gases have a very strong, discussing odor. Like hydrogen sulfide that smell like rotten eggs, while hydrogen chloride and sulfur dioxide sing eyes and throats and they can eat through clothing too.|
|Flames can start when the hydrogen gas catches fire while it is leaving the central vent. The flames are very hard to see since the lava that sprits into the air and has a fiery look to it too.Lightening flashes often occur while ashy volcanic eruptions. Some other bad things that happen when a volcano erupts is the lava but it is actually the least dangerous because you can usually see the lava coming and you can usually run from it too. Another bad thing is if the place where the volcano is located there may be snow on the peek of it.|
|If the volcano erupts and there is still snow on the peek it will probably cause a mudslide making the mud tumble rapidly down the volcano with lots of force. If the force of a volcano is extremely powerful it can affect other areas as well. Some times it can be heard 3,000 miles away! Sometime the ahs, dust and rocks are blown 17 miles high. They can land thousands of miles away from where the volcano erupted. Frequently the ash, dust and rocks can be carried around the world.|
|A volcano has many different parts. All the different volcanoes in the world all have a magma chamber, central vent, magma, rock layers and lava layers. The rock layer are located a little bit above the Magma Chamber, which contains trapped water vapor and gases, and is on top of the Earth's Mantle. Surprisingly the only volcano that has condits (side vents) is the composite volcano.|
|Amazingly the biggest
volcanoes on the Earth are located over top of hot spots. Hot spot occur
in the middle of the plates and most are underneath the ocean. No body is
really sure why or how hot spots form. Some people believe that certain
hot spots are related to old plate boundary positions. Boundaries are cracks
in the plate through which magma can escape to the surface of ocean of land.
Some hot spots are beginning of new plate boundaries. Interestingly, Iceland
has a hot spot that is 1,200 miles across!