While one might ask how water erosion can be so prevalent in the desert, it is important to note that like many Australian deserts, the area receives a surprisingly high amount of rain, about 200-250 millimeters a year. ("Ayers Rock Facts," 2009) It is believed that the mountain chains that once included Ayers Rock were as large as the surrounding peaks. Now, there is just one remaining piece of this long lost chain. Wind and water took an enormous toll on the surface of the area. When one considers other major mountain chains, and is informed that they were once much larger, it is hard to grasp the concept due to the fact that the mountains still exist, and are fairly large in their current state.
Since air is less dense than water wind can only remove fine sediment such as silt, sand, and clay, but unlike running water, wind is not confined to channels. It can have a widespread effect over vast areas, and the faster the wind blows, the more sediment it can move. Wind action in dry climates can result in thick, choking dust storms. Air pressure differences cause wind as air warms and cools and changes density. The extreme temperature fluctuations that can occur in dry climates causes winds to become stronger.
Theory 1: Tension forces a) Tension forces act on the layers of rock. b) Gradually two parallel faults appear and the central block begins to subside (sink). c) Land in between sinks in forming a rift valley. The land on either sides stays in place. After subsidence a depression with steep fault scarp sides i.e.
The Long Shore Current is a current that runs parallel to the beach front taking sand with it which causes sand to be constantly moved in a certain direction. The current is caused by the waves coming in towards the beach at an angle. When a groin is built, the Long Shore Current’s path is blocked and sand begins to build up on the leeward side. This buildup of sand causes the sand on the other side of the groin to be displaced, and the beach gets swept out without getting replaced. A jetty is a hard structure built on the edge of an inlet that is used to block the waves and currents from going in the inlet.
Bacton’s geology is comprised of clay, silts and sand. It has a wide sandy beach. It is at risk from coastal erosion such as longshore drift and if it was not protected, the gas terminal would cease to function which would make a lot of the population in Bacton redundant. Also, it poses an environmental hazard if an explosion occurred and gas escaped. Happisburgh is composed of several glacial tills
This happens when the normal winds weaken which allows the warm water that is usually found in the western Pacific change direction and instead move towards the east. This warm water replaces the cold water which is normally found near the surface of the eastern Pacific. All these occurrences are what affects a lot of weather patterns in many parts of the
This is not far, compared to some of the world’s large oceans, but the size of the waves attacking the coast is increased by four other factors. One is the currents or swell, which circulate around the UK from the Atlantic and into the North Sea. The Atlantic fetch is 5000 km or more, and its currents add energy to waves in the North Sea. Therefore, there are often powerful destructive waves along the coastline, eroding the cliffs. The second point is the low pressure weather systems passing over the North Sea are often intense, and locally produce very strong winds and waves.
Oklahoma, Kansas, the Northern Texas, and the New Mexico) which experienced severe soil erosion caused by the effect of windstorms in the 1930s. Lassieur (2009) noted that the term has its origin from WW I, during which the initially known grasslands of the area were converted into agricultural fields. The area had experience dry climates leading to severe drought. Together with the effect of over-cultivation, which occurred in the early parts of 1930’s, the land in the Great Plains ware left bare? This condition made the soil to be more prone to the heavy winds, which blew the loose topsoil in what was described as the black blizzards.
The lithosphere is divided into 7 major plates, including the North-American plate, and several minor plates. Between these plates are three different types of plate boundaries: constructive, destructive and conservative. Earthquakes can occur at all three when pressure builds up and is released in one sudden movement. The Earth’s plates move due to convection currents within the mantle in the Earth’s asthenosphere. As heat rises and cools it forces the plates in different directions; either sliding past one another, away or towards each other.
The location stands at the approximate elevation of 6,200 feet. Chaco is a high desert that is very sun scorched in the summer and can be very unforgiving in the winter. Despite the very harsh surroundings but they have been very good promising break trough’s of evidence of human presence in the area stretches back to as early as 2900 BC. These groups were largely nomadic until up and around AD 200