Basalt

Lassen Volcanic’s geology is very interesting. The terrain has been influenced from many different natural occurrences from 25,000 to 18,000 years ago. Referring back to the May 22, 1915 eruption, the active volcano created a great deal of devastation and depressions; known as the Devastated Area. The devastation caused has an area of three square miles. Volcanoes are common at Lassen. In fact, Lassen is home to all four types of volcanoes, which are shield, cinder cone, plug dome, and…

and its known as an oceanic spreading center which is in charge of the seafloor spreading. New seafloor is being produced when convection currents rise in the mantle layer which is under the oceanic crust, it then create magma that cools down into basalt where two plates is push away from each other. Ridge push and slab pull are the two processes that is in charge of the spreading of the mid ocean ridges. The ‘ridge push’ process occur when the growing part of the ridges keep on pushing the…

The ocean crust has basalt and continental crust. And it is also contains solid hot rock and that can get up to 300 km lithosphere is also part of the crust in conclusion there are many ways that a sanction can explore and learn about earth. Types…

Hawaii’s Kilauea versus Mount Fujiyama Ever since I was a little girl I have always been fascinated with volcanoes. How do they work? How hot is the lava exactly? Can you travel down into the funnel of a volcano, and if so how and will you survive? And do all volcanoes function the same way? As a child, we never understood that the beautiful hot magma that flows from the volcano is dangerous and burns everything in its path. Two volcanoes that have always caught my eye is Hawaii’s Kilauea and…

The purpose of this paper is the explain a natural phenomena, Axial Seamount. Even if the reader has no knowledge of Axial Seamount, they will be able to fully understand the content of this paper. They will learn facts about Axial Seamount such as what it is, on what plates it is located on, what landforms are around it, etc. Axial Seamount is an underwater volcano located in the Northeastern Pacific Ocean, about 483 kilometers (300 miles) off the coast of Oregon. Because its frequent volcanic…

There are over 1500 active volcanoes is the world. Sometimes we do not know when a volcano is going to erupt, but most of the times the volcano itself gives early signs of eruption. Some of those signs are small earthquakes beneath the volcano, swelling or increase heat and gases coming out of the volcano. A volcano is a mountain or hill, having a crater or vent where lava, rock fragments, hot vapor, and gases are being released from the earth's crust. One of the many active volcanos in the…

my paper I will be giving information on how often do volcanoes erupt. First,I will explain how magma can trigger volcanic eruption. Next, I will discuss how buoyancy can also trigger a volcanic eruption. Finally, I will predict how pressure from gases in the magma and magma chamber can cause a volcanic eruption,and give some more details about my volcano. It depends on the volcano to erupt oftenly. Some volcanoes erupt very often (and some like Kilauea almost never stop). On the other hand,…

Volcanoes can destroy the land all around them. There are volcanoes all around the world, some may be dormant then may become active. There are some volcanoes that destroyed all of the living things around them, such as, Vesuvius, and Mt. St Helens. Some volcanoes are very different from the others. There could be different ways a volcano could erupt. Vesuvius and Mt. St Helens both destroyed a great amount of land around them. Furthermore, the two volcanoes caused Earth quakes. In addition,…

The topic of this discussion is to explain why Africa and South America are moving apart. The drifting apart of Africa and South America has to do with the theory known as the theory of plate tectonics. Based on this model, the crust the coolest part of the mantle, make up Earth’s strong outer layer, known as the lithosphere. Right beneath the lithosphere is the asthenosphere, the hottest part of the mantle. Rocks at this depth are very near the melting temperature, and respond to forces by…

VMS deposits occur in a diversity of shapes ranging from flat lens shaped to large sheet-like sulphide mineral rich bodies (Allen, et al., 2002). The preferred environment for these deposits to form in is submarine near a seafloor opening i.e. black smokers, where hydrothermal fluids escape and precipitate on the ocean bottom (Evans & Moon, 2006). The mineralogy of Kidd Creek VMS deposits often consists out of more than 60 different ore minerals and ore-related gangue minerals, of which 90% or…