Essays on Geology

Introduction to Geology GEOL-101 Midterm 1 Review Based on the textbook: Understanding Earth, 6th Edition, by Grotzinger and Press CH 1: earth system Summary The human creative process, field and lab observations, and experiments help geoscientists formulate testable hypotheses (models) for how the Earth works …

In 1915 Alfred Wegner, a German climatologist and geophysicst, published The Origin of Continents and Oceans. In this book he proposed his theory of the continental drift. The first evidence that lead people to suspect that the continents were once connected was the evidence of …

Key Terms and Concepts (1-24) 1. Denudation is the total effect of all actions (weathering, mass wasting, and erosion) that lower the surface of the continents. 2. Weathering- the physical and chemical disintegration of rock that is exposed to the atmosphere. Mass-wasting- the short-distance down …

The relentless motions of tectonic plates, the uplift and the erosion of mountain ranges, and the evolution of living organisms are processes which can only be fully appreciated across the deep time of geology. (more…)

Mount St. Helens, located in southwestern Washington about 50 miles northeast of Portland, Oregon, is one of many volcanic peaks that dominate the Cascade Range of the Pacific Northwest; the range extends from Mount Garibaldi in British Columbia, Canada, to Lassen Peak in northern California. …

Amber-preserved fossils are organisms that become trapped in tree resin that hardens into amber after the tree gets buried underground A4. Preserved remains form when an entire organism becomes encased in material such as ice or volcanic ash or immersed in bogs. Most fossils form …

Earthquake is a shaking of the earth’s surface. According to the theory of plate tectonics, the earth’s crust is formed by a number of large plates that move very slowly in various directions on the earth’s surface. Most earthquakes occur near a boundary between two …

In earth science they talk a lot about different Earthquakes, volcanoes, the weather, different rocks, and etc. But never did you really get in details of what is any of them. Well I did research and found out that an earthquake which is also known …

There are different phenomena happening in the earth’s crust and some of those are the occurrence of folds and faults. Both phenomena are caused by forces like tension and compression. Folds are bends in the rock surfaces while Faults are fractures in the earth’s crust …

In May 2008, a memorial tragedy has carved our heart. More than 60,000 of our compatriots died in the Great Sichuan Earthquake. It was a once-in-a-year strong earthquake registering a magnitude of 7. 8 measured in the Richter scale. The province where the earthquake took …

FULL SET OF NOTES ON TECHTONICS 2012 AQA GEOGRAPHY FULL SET OF NOTES ON TECHTONICS 2012 AQA GEOGRAPHY TECHTONICS| TOPICS| UNDERSTOOD/COVERED? | PLATE MOVEMENT| | SEISMICITY| | VULCANICITY | | These notes were copied from an AQA textbook. They contain EVERYTHING you need to know …

What does one think of when they hear the word fracking? Most people think of its similarity to a curse word. In reality fracking is a curse word, in terms of its severity. Fracking is one of the most dangerous styles of oil drilling, causing …

Tides often determine the range over which sediment is deposited or eroded. Areas with high tidal ranges allow waves to reach farther up the shore, and areas with lower tidal ranges produce deprossosition at a smaller elevation interval. The tidal range is influenced by the …

Volcanic eruptions have caused some of the worst disasters in the world. They can wipe out entire cities and kill thousands of people. The name of volcano comes from Roman term. It derives from Vulcan which is the name of Roman fire god. Romans believed …

This papers is intended as a literature reappraisal of research on how to pattern the eroding. Erosion is a natural procedure that has become a serious environmental job due to the action of several natural and human factors. For case, deforestation, fires, unequal agricultural patterns …

The massive wave of water, as high as 10 metres in some parts, reached more than five kilometres inland. The meteorological agency issued its top-level evacuation alerts for the entire Japanese coast amid warnings of a tsunami of between six and 10 metres. Towns and …

The largest earthquake in the world had a magnitude of 9. 5 and took place in Chile. The Valdivia Earthquake, also know as the Great Chilean Earthquake, happened on Sunday, May 22, 1960. It is the largest earthquake currently on record. It occured in the …

On March 23, 1968 a Glomar Challenger ship was launched from Orange, Texas under the supervision of National Science Foundation and the Regents, University of California. This marked the beginning of a new era in the field of oceanographic explorations. The Glomar Challenger explored the …

The Mosaic floors at Fishbourne have been damaged in a variety of ways. In this essay I am going to describe and explain how several of the floors have been damaged before explaining how the damage might have been caused. In addition, I will then …

For many years people always called southern California Americas Promised Land because of Its beautiful weather, beaches and Its film industry. Now with 13 million habitants it’s been looked at as hazard city. “Not only does the San Andrea Fault, marking the conservative margin between …

Use the following table to compare ways of evaluating geologic time. Your description, similarities, and differences must each be at least 50 words. |Time Evaluation Method |Description |Advantages of this Method |Disadvantages of this Method | |Relative dating |Relative dating is the process |There are …

Volcanic Landforms Volcano is essentially a fissure or vent (opening) which serves as an outlet for hot magma from beneath the Earth’s crust. The hot liquid magma coming out in the form of lava (most commonly molten basalt) is potential of shaping different landforms on …

Caves and CavernsA cave or cavern is the natural resistance infinite which is large plenty for human to come in. Most people suggest the term cave ought to use merely in pits with some parts non having the daytime, though in the usual use, the …

Rocks are classified to make it easier on people to identify them in the future. This can be done by a numerous amount of ways. Each rock type has their own specific ways, but there are two distinct characteristics that apply to all. These are …

1. Earthquakes occur in various part of United States. The earthquakes that occurred across the country ranges in magnitude and the date of occurrences. Earthquake with highest magnitude that was recorded in history occurred in Alaska while the one with lowest magnitude occurred in the …

Sedimentary rocks in Pakistan range in age from Precambrian to Miocene i. e from oldest to youngest on the geological time scale form 542 million years to latest. Luckily for geoscientists all of them are exposed in different parts of the country. Lithologically they constitute …

Mt Cook/Aoraki formation Vinoth Loganathan New Zealand is a country which ‘straddles’ between two tectonic plates; the indo-Australian and the Pacific. The location of the South Island is south of both Australia and South Africa; this is a major contributor to the geological process of …

Case Study of Mount St. Helens Date: 18th May, 1980 Time: 8:30-8:33 8: 30—ash and steam erupted. 8:32—earthquake of magnitude 5. 1 on the Richter scale caused the bulge on the north side of the mountain to move forwards and downwards, releasing material that formed …

The Magilligan Foreland is situated in the North West of Northern Ireland and comprises a triangular beach ridge plain that stretches from Downhill in the North East to Magilligan Point, which is the northernmost spit of the Foreland (Tillmann et al, 2015). It is the …

Naturally occurring earthquakes Fault types Tectonic earthquakes occur anywhere in the earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane. The sides of a fault move past each other smoothly and aseismically only if there are no …