Introduction In this report, I will be explaining two surface features which are visually interesting to geologists and tourists in the Taupo Volcanic Zone (TVZ), Lake Taupo, and Mt Ruapehu. Lake Taupo is a main tourist attraction as it is the largest lake in New Zealand with a beautiful scenery perfect for activities like recreational fishing and sky diving. Furthermore, it generates electrical energy via the Waikato river that is used by people all around waikato. Mt Ruapehu is also a tourist attraction as the highest peak on the North Island with two major ski-fields and only glaciers on its slopes. Creation Believe it or not, both surface features are active volcanoes. Lake Taupo a caldera, and Mt Ruapehu a stratovolcano. These volcanoes were formed because TVZ is a convergent plate boundary where the Pacific (Oceanic) plate which is more dense ,is getting subducted under the Australian (Continental) crust which is less dense. This is being driven by a force called convection which happens in the asthenosphere which is fluid. It is when the fluid near the core heats up, and rises due to it’s low density compared to the surrounding fluid. This fluid then cools down and sinks due to it’s high density compared to the surrounding fluid. It therefore gets near to the core again and so, repeats the cycle. The direction of the convection can cause plate boundaries- opposite and away from each other will result in divergent plate boundaries and opposite but towards each
There are three different types of plate boundaries. The first type of plate boundaries is, the spreading boundary. A spreading boundary is when two plates move apart. The spreading boundary is also known as a divergent boundary. The second type of plate boundary is a colliding boundary. A colliding boundary is when two plates come together, or collide. It is also known as convergent boundary. The third is, a sliding boundary. A sliding boundary is when two plates slip past each other moving in opposite directions. It is also known as transform boundary. Those were the three different types of plate
Be sure to consider topography/bathymetry as well as the earthquake and volcano layers. List several ways and be specific. 3pts In the middle between the two Without the plate boundary feature, you would still see the change in depth where the mountains are, still feel earthquakes, and see volcanic eruptions. Adapted from an activity by Laurel Goodell February 2013
As a tectonic plate slides into the mantle, the heat releases fluids trapped in the plate. Seawater and carbon dioxide, rise into the upper plate and can partially melt the overlying crust, forming magma. And magma most likely means volcanoes are around.
There are three distinct types of plate boundaries existing, which are supported by geological observation, geophysical data, and theoretical considerations. Their names and categories are based on if adjacent plates move apart from each other (divergent plate margins), toward one another (convergent plate margins), or slip past one another in a direction parallel to their common boundary (transform plate margins) (Pitman, W.C., 2007).
This paper will provide information on the volcanoes of Hawaii, where it is known to be the home of one of the world’s largest volcanic islands, merely second to Iceland. It is not just the beautiful landscapes and wildlife that spark the interest to this particular area, but the uniqueness of the Hawaiian volcanoes and islands themselves are what make the area so significant. There will be information spanning from the history of the origin of the islands to how Hawaii must adjust to the volcanic hazards in order to keep the area livable. With these ideas in mind, I will first address background information on the area and set the scene as to what makes this area so special. Then I will transition to the history of how the
Pushing forces generated in the lithosphere above the adjacent downgoing portion of the convection cell result in the formation of a deep-sea trench that eventually develops into what type of plate
The key geological features played a significant role in creating Waimanalo. Waimanalo was formed by a catastrophic landslide from the Nuuanu Pali all the way down to the coast and to the ending of Makapu`u. Under the water lay debris and material from this landslide. In the 1960’s, the US Navy first found out about this information by a single-beam sonar surveying a utilized improved radio navigation system. In the 1980’s, a multibeam side-scan sonar, GLORIA, imaged in unprecedented detail known landslides, and also discovered new ones. Then finally, came the JAMESTEC multibeam profiler which surveys and utilized GPS navigation, produced detailed maps of the entire landslide for the first time.
of the effects of plate tectonics acting over geologic time. The story begins with the
DePaolo, Edward, and Thomas, all professors and researchers of geology study hotspot volcanoes, and their impact on Hawaii. Their study is based on a major drilling project based in Hawaii. Drilling is a crucial aspect of gaining insight on volcanoes, because it provides samples of lava, which then provides information about Earth’s mantle. Scientists can then retrieve information from the mantle, such as the age of the volcano and its temperature. Experts say that drilling could be valuable for collecting information about other volcanoes and their mantles.
“Shield volcanoes are the largest volcanoes on the earth” (“Volcano DIscovery”). This makes Kilauea a nice tourist attraction. Tourists can view the bubbling lava crater, caldera, also known as the home of the fire goddess Pele. Tourists can also view the lava lakes. “How active the flow is determines how close people can
Hawaii was formed with the volcano of Kilauea, which lead more volcanoes to erupt. It has been theorized that Hawaii is sitting on a hot spot under the Pacific plate, which has come to be known as the hot plate theory (Macdonald 1). In Stanley’s text Earth System History, a hot spot is defined as a small geographical area where the crust is elevated by the rising magma that can cause a volcano to erupt (192). These hotspots pushed the molten lava to the surface, which caused the sea volcanoes to form. The volcanoes overtime rose to the surface of earth and formed the Hawaiian Islands. Then the Pacific plate rotated northwest, which made room for more hotspots to occur, therefore, making the eight total islands in Hawaii ("How Did Hawaii Came to Be”, par. 2). However, nobody is absolutely certain what exactly
Annotated Bibliography Capra, L. (2006). Abrupt climatic changes as triggering mechanisms of massive volcanic collapses. Journal of Volcanology and Geothermal Research, 155(3), 329-333. This article explains how volcanic collapse can affect the climate.
The Hawaiian volcano is a shield volcano; they are the oldest continental regions of earth. They may even be the remains of ancient shield volcanoes. A shield volcano is tall and broad with flat, rounded shape. The Hawaiian volcanoes are built by countless outpourings of lava that advance great distances from a central summit vent or a group of vents. Extensive study of the Hawaiian Islands revealed that they are constructed of a myriad of thin basaltic lava flows averaging a few meters thick intermixed with relatively minor amounts of pyroclastic ejected material. During eruptions these outpourings help keep these volcanoes safe. When these volcanoes erupt lava fountains out form the volcano and is hot liquid lava is thrown into the air but usually not very high. The lava normally flows easily, and does not explode. These volcanoes also only explode if water some how gets into the vent. Mount St. Helens is composite volcano, which are also known as strato- volcanoes. They are tall, symmetrically shaped, with steep sides, sometimes rising 10,000 feet high. They are built of alternating layers of lava flows, volcanic ash, and cinders. The large and generally cone-shaped volcanoes form along plate boundaries called subduction zones where one of the earths plates melts as it falls back into the earth`s mantle. The eruptions are called explosive, and effusive, because vast amounts of gasses are thrown into the atmosphere, and the lava explodes and is vicious.
Heat emission from subduction zones can take many forms, such as volcanoes, geysers and hot springs. When lateral plate movement induced gaps occur between plates, collisions occur between other plates. This results in partial plate destruction. This causes mass amounts of heat to be produced due to frictional forces and the rise of magma from the mantle through propagating lithosphere fractures and thermal plumes sometimes resulting in volcanism. During plate movement, continental plates are constantly being consumed and produced changing plate boundaries.
Rotorua - Te Puia spans 70 hectares within the historic Te Whakarewarewa Valley, on the edge of Rotorua. It possesses Pohutu geyser, mud pools, hot springs, silica formations, the Kiwi bird and the national schools of wood carving, weaving, stone and bone carving. They have shared these treasures with manuhiri (visitors) for 170 years and proudly continue that legacy today.