Nt1310 Unit 1 Assignment

The scientists take careful looks at the rocks to study things like texture, composition, and where the rock came from (OI). That helps them figure out what type of rock it is and what it is useful for. That is why the

Caroline Burns 159001444 Museum Assignment 2 3) Basalt is an igneous and mafic rock that compromises most of the volcanic rocks. It is dark black and gray colored. It is rough and has an uneven rectangle-box shape. Basalt is from Somerset and is four point two billion years of age.

Plate tectonics is a theory that Earth’s crust is composed of nearly a dozen plates, which have shifted around the surface of the Earth over time. This theory provides a reasonable explanation for how mountains formed, and why there are earthquakes and volcanoes. Additionally, this

The movement of plates affected the geological features of the United States via convection currents, plate boundaries, and natural disasters. Convection currents, or currents within a fluid (magma) that rise from convection (the rising of hot air and the falling of cool air) affected the geological features of the United States by moving the plates. The plates, rested just above the mantle, rely on convection currents below them to move them and form boundaries. This is where plate boundaries come into play. Plate boundaries are where plates either collide, separate, or bash against each other in opposite directions.

Diverging plates is when the plates move away from each other. In the space between the plates, there is magma that flows up which then cools and hardens, which forms mid-ocean ridges. The Pacific Ocean has many mid-ocean ridges. It is growing wider by about 18cm per year as the plates diverge and the mid-oceanic ridge builds

On Earth, there are several different tectonic plates that the crust is divided into. There are both continental and oceanic plates. There are also different types of boundaries where these tectonic plates meet. The first is divergent, this is a type of boundary where the two tectonic plates move apart from each other. The second is subduction, this is a type of boundary in which an oceanic plate moves under a continental plate.

Adjacent plates of the sea floor were forced apart as a result of

One example of these similarities and differences between Arcite

Bricks are a type of ceramic material that is composed of “metallic atoms and non-metals”, retaining properties of “ionic mechanism” (Simmons 2007:81). Ceramic materials generally obtain a higher melting point. Brick Type: Solid 8-inch Bond Pattern: Running Texture: Smooth Figure XX. Brick Details of the United Hillhurst Church Brick masonry unit can be “solid, hollow, or architectural terra cotta” (David L. Heiserman 2015).

Simply put, marble is just limestone that has been exposed to heat and pressure for an extended amount of time. Because it is formed by applying heat and pressure over time, it is considered a metamorphic rock. Complexities arise when impurities are introduced to the limestone undergoing crystallization. Many things can change the mineral composition of marble, such as silica. When silica is present then carbonate minerals form masses of quartz or chert crystals, but only at lower temperatures of formation.

When the plate tectonics move, it causes pressure inside the earth that creates volcanoes. “The pressure inside the earth forces magma up through a weak point

Veins form in the marble while it is still forming in the ground from the mineral impurities such as sand, silt, iron oxides, chert or clay. The colour of the veins

When a oceanic plate converges with a continental plate, the denser oceanic plate would subduct under the less dense continental plate At the subduction zone, the tip of the solid mantle material melts and form magma Pressure causes the magma to rise through any cracks in the continental plate Rising magma builds up pressure in the magma chamber The build-up of pressure in the magma chamber forces the magma up onto the plate surface.

Subduction is the process when in which one tectonic plate moves under the other, sinking into the mantle as the plates converge. Regions where subduction takes place are known as subduction zones. Subduction zones tend to have very high rates of earthquakes, volcanism, and mountain building. Some examples of volcanoes that are located above subduction zones would be Mount St. Helens, Mount Etna, and Mount Fuji. Furthermore, the strains, which are a result of plate convergence, are known to be the cause of at least three different types of earthquakes.

The mantle is the largest layer of the earth and consists of dense, heated rock [6]. The lithosphere is split into tectonic plates that slowly move due to the amount of heat from the earth's center causing molten rock to move in the mantle [7]. There are seven major plates and a large number of smaller ones on earth. The relative movement in which the tectonic plates meet, establishes the type of boundary (convergent, divergent, and transform) [8]. Along these boundaries are where earthquakes occur.