3.1 1. Minerals have a few distinguishing characteristics that differ them from other materials. One of the biggest characteristic that minerals poses is they are naturally occurring, inorganic element or compound. Another is the hardness of the mineral. Minerals also have the characteristics of very different cleavage shapes. This is because minerals are easy to fracture. They also poses a crystalline structure. Rocks are a mixture of minerals, whereas minerals are their own purest form. Rocks also do not have crystalline structure. Rocks also can include fossils where minerals cannot. Minerals colors are generally the same. Rocks vary in color. 2 .The most significant difference between ingenious, sedimentary and metamorphic. Ingenious rocks are fire or …show more content…
There is one big reason rocks are not found on the sea floor that could be attributed to the dynamics of nature. One of them is because the sea floor is constantly changing thanks to seafloor spreading. So, the seafloor now is not the same as it was years ago. Seafloor spreading happens because of the earth’s plates constantly moving meaning the rocks on the seafloor will soon be shifted inward toward the mantel or shifted to another side. 2. The three types of plate convergences are convergent, divergent and transformative. Each has something different happen. In convergent, the two plates converge. In divergent, the two plates move apart. In transformative, the two plates slide across one another. 3. The dynamic nature of Earth basically means that the Earth is constantly changing and growing. This is majorly involved in the Earth’s ongoing recycling process. The process has been going on for billions of years. The crust basically acts in a cycle. Rocks are heated underneath the crust then pushed out through a volcano or the oceanic plate. The rock substance that becomes the crust will deposit back underneath the crust. All of the process can be credited to the dynamic nature of Earth.
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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.
Then about 25 million years ago lots of dome-like plugs of magma were forced through the surrounding older rocks, filling volcanic vents or subsurface bulges. They are now exposed from the ground and are called the Glass House Mountains. The Bible theory believes that the sandstone was placed as the floodwaters from the story of Noah were rising in the earth, and placing extensive sedimentary sheets across thousands of kilometres of the landscape. The aboriginal legend seems to mention the flood of Noah as it says "One day when Tibrogargan was gazing out to sea, he perceived a great rising of the waters. He knew then that
Usually because the plates have friction, the stresses build up on the surface. The process is relatively slow with a rate of 1 inch per year, until one of the surface slips due to high pressure. The slippage speed up to 5000 miles an hour, the pressure tears down the fault to a stuck patch which slows down the speed of the moving plates. The plates may break though the stuck patch and continue to the next knot and affecting more area.(USGS) Geology in San
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.
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.
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 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 . 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 . 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) . Along these boundaries are where earthquakes occur.