Earthquakes are caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two plates are rubbing against each other, they stick a little. Most earthquakes occur along the edge of the oceanic and continental plates. Due to stress they shift and cause the earthquake.
Tsunamis happen when the plates on the crust of the earth move, therefore moving the entire plate so that the water rises and is pushed forward, therefore causing a tsunami (Drohan, 2009, p.21). These tectonic plates are everywhere, under everything from the biggest mountain to the smallest hill. Though it is infrequent, volcanoes have been known to cause tsunamis. It happens when to volcano begins to erupt, but instead of coming out from the top of the volcano a lateral blast shoots out from the side. Next, a quickly moving avalanche of lava pours into the water near it causing the wave to travel to distant coastlines (Springer, 2005).
Assignment 2 CVE80006 Infrastructure Deterioration Modelling Concrete Crack Diagnosis Assignment The phenomenon of cracking in concrete may depend on several factors such as the amount of loading, rate of bleeding, amount of stress and strain generated in concrete, the composition of concrete and method of fabrication. The cracking of concrete has become severe due to advance construction process which demands high strength structure requiring an increase in stress, strain, and deflection resistance. The cracks in concrete are mainly classified as structural crack and non-structural crack. Structural Crack - Shear Crack and Extra Compression Loading Crack Figure 1. Shear Crack Figure 1 is an example of shear crack found at Swinburne
Subduction zones can create beautiful landscapes such as mountains; however, they are also dangerous regions. Subduction zones occur because one of the plates that collide with other, in convergent plate boundaries, is of higher density. Hence it sinks into the earth back to the mantle (lecture 3, slide 24-26). When such phenomenon occurs, natural hazards such as earthquakes or tsunamis would occur, making these regions dangerous. Nevertheless, it does not limit traveling.
Tidal waves can likewise be created by submerged volcanic ejections. Volcanic emissions are another catastrophic event, and they are brought on by magma getting away from inside the earth. A blast happens, discharging the magma from a bound space, which is the reason there are frequently likewise gigantic amounts of gas and tidy discharged amid a volcanic emission. The magma goes up within the well of lava, and spills out over the encompassing territory as
The mixture is injected at the rock at high pressure it fractures the rock so the gas is released. From there the gas comes back up the vertically drilled hole. Afterwards the water mixture is left underground where the gas once was. With Fracking there are many pros and cons to the process. Some of the pros are significantly
It was found out that the disposal wells pumped with used fracking chemical water are creating these man-made earthquakes. “If you pump water in a fault, the fault can slip, causing an earthquake.” https://stateimpact.npr.org/texas/tag/earthquake/ These earthquakes, no matter how big or small are bothersome to a person 's
Fractures caused because of water pressure due to the brittle nature of the rock can be seen, this is the jointing in the basalt. We walked down the creek path to closely observe the basalt structure and saw a complex joint system, which we believe after further reading happened after the lava solidified into basalt it underwent contraction due to cooling. This shrinkage resulted in tensile strain to be applied on the rock mass, because the upward and downward tension could be put up by the molten elastic rock underneath the crust whereas the horizontal stress caused the outer crust to crack, which resulted to form a joint system and horizontal pipe like structure
The values might have been influenced by a possible experimental error. Makes predictions, asks new testable questions and makes new hypotheses using the data A new testable question inspired by the experiment is: How does a particles hardness affect the infiltration rate? It may seem a little irrelevant, but is it possible that hardness can affect the rate of infiltration? Will a soft particle not delay the infiltration rate because it can get weathered by the water? The hypothesis for this experiment is: If a mineral is harder, then it will take longer for the water to drain because the water can’t easily travel down the funnel.