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San andreas fault eesay
San andreas fault case study
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The state that I had picked out for this assignment is California. What is the plate tectonic setting of your chosen state? What natural resources are mined or extracted there? What erosional or depositional settings such as, mountains to coast found in your state? Also, what is the geologic history of your state? All that and more will be discussed in the following text.
Many items had pulled up when searching for the plate tectonic setting of my state. They were the San Andreas Fault, the Sierra Nevada the mountain range, and the Long Valley Caldera, which is a crater. First, there is the San Andreas Fault. The Pacific Plate (on the west) moves northwestward about the North American Plate (on the east), causing earthquakes along the fault. These two moving plates meet in western California; the boundary between them is
One area of California that happens on a yearly basis in San Francisco. El Nino grinds away at a small portion of the beach pulling some sand out to sea, but, in 2010 bluffs collapsed and a large amount of sand grabbed by the sea for good. California officials expect a rise in sea levels by 14 inches by 2050 due to climate change. Landslides in Northern California are a cause of a lot of erosion. These landslides made by earthquakes, intense or prolonged rainfall, and some by major winter storms that have caused fatalities and property damage. Many areas of the coastal portion of California are subject to the erosion of cliffs. These erosional features make it hard for homeowners and property dealers because of the hazards that come along with cliff falling off one day. There is also the Sierra Nevada’s that I had discussed in some of the text above. This mountain range has broken down by a series of streams which come from rivers like the Yuba, American, Mokelumne, and Kern. These originate in deep valleys carved mainly by glaciers into predominant granite and some
Investigating the Geographical Processes that are Affecting the Physical and Built Coastal Environment There are three geographical processes that are affecting the physical and built coastal environment, they are; erosion, deposition, and transportation. Erosion is the group of natural processes, including weathering, dissolution, abrasion, corrosion, and transportation, by which material is worn away from the earth’s surface, this is mainly caused by wind, running water, and waves breaking on the coast. Deposition is the depositing something or the laying down of matter by a natural process. Transportation is when sand is moved along the coast by long shore drift. At North Cronulla beach erosion is evident.
The Long Point Fault is located in Harris County, which covers 83,450 square miles located with in Houston, Teaxas City Limits. Research specifies that there are three sections of the Long Point fault that appear to be active; some sections of the Long Point fault have averaged more than 2 cm per year of vertical offset over the last 20 years. Evidence of the faults concludes it is a natural fault. The reason for activity is not caused by man, even though man’s activities are not helping the issues, but clearly humans are not the initial cause, biological activity can be in fact an adiitional cause for its movement. A brief description of the type of fault and its relationship with the strata and the faults beneath the Houston area, are at depths of 1,000 to 4,000 m. They have been well-defined through the study of well logs and seismic lines. Studies have resuted in assumuptions that some of these subsurface faults penetrate younger sediments at shallower depths, and contain faults that have of set the present land surface to produce recognizable scarps. (Gabrysh)
Most of Arizona’s earthquakes are associated with the San Andreas fault as most of Arizona’s earthquakes are shocks from epicenters located in California. Arizona has had earthquakes with epicenters located in its borders and just like the ones located near the San Andreas fault, they are linked to a transform plate boundary and are dip-slip earthquakes. Much of the focus of these earthquakes can be centered around the Grand Canyon as much of the after-effects of these earthquakes caused phenomenons to occur in the Grand Canyon. Many rockslides took place in the Grand Canyon and plenty of the cracks found in the canyon’s rock layers are attributed to some of the earthquakes that took place in Arizona since the geologic landscape formed its current
The geology, its history, and the presence of past civilizations contribute to much of the significance of Mesa Verde National Park. The interconnectedness of these aspects should also be noted. If not for the weathering processes and changes in sea level this formation would not exist. Without it, the ancient people would not have been able to reside within Mesa Verde. This National Park now serves as a tool to help conserve the remains of these past civilizations as well as to help educate today’s society on the significance behind this astonishing geologic
Hess, D., McKnight, T. L., & Tasa, D. (2011). McKnight's physical geography (Custom ed. for California State University, Northridge ; 2nd Calif. ed.). New York: Learning Solutions.
Tectonic plate movement can occur as close as two and up to 450 miles below the Earth’s surface. According to the Indiana Geological Survey, Indiana’s fault lines are further underground than those in California and Alaska, causing more minor quakes in the Midwest. However, Hoosiers should heed the recent earthquake as a warning for future quakes. Earthquakes can and do happen in Indiana, and almost anywhere else in the world. This is the one natural disaster that people cannot avoid no matter their location on Earth. And, being unprepared can have devastating results.
With the recent earthquakes in California, many are worried about the next earthquake that could be the potential “big” one that many geologists have been predicting for many years. The Cascadia subduction zone is also known as the CSZ megathrust fault. It is roughly 1000km long, a dipping fault that stretches from the Northern Vancouver Islands to Cape Mendocino, California. The zone passes through British Columbia, Washington, Oregon and into California. The Cascadia region has experienced several types of earthquakes and it is very likely to experience similar quakes in the near future.
California geography in the 1860s were wide and flat valleys with a limited population what made what the ideal crop. California physical geography in the 1860s were flat and wide in the valleys which made wheat the ideal crop ideal crop, Before the panic of 1893, wheat was “profitable agricultural commodity” (201).The central valley of California improved agricultural through the development of technology such as “planting, pulverizing the earth, spreading the seeds in one operation, and improvements on cutting and threshing of grain” (pg. 202) California physical geography led to a prosperous agricultural and diversity various types of
California, the place to turn cant’s into cans and dreams into plans. The same situation and scenarios apply to today and even over one hundred and sixty five years ago. Then and now are not so different, people are thriving or failing from the land of plenty, supplying themselves with knowledge, wealth, or skill to either spread their wings and take flight or crash and burn. Each state in the United States of America has a correlating nickname to either why it’s famous or an explanation of its history. California’s state name is The Golden State, and going all the way back to 1849 is why this was such an influential time for California and all of America. This is the period of the Gold Rush. Reasons why this event was so impeccable, to the development of California, are the years leading up to the discovery, the first findings, the journey, and so much more.
The California drought has been extremely harmful to the states’ air quality. Since 2012, California has seen the worst drought conditions in 1,200 years and it is severely affecting air quality (California’s drought, 2015). As of 2015, the cities of Hanford, Merced, Modesto, Fresno, Yuba City, Lancaster-Palmdale, Chico, Sacramento, and Bakersfield have been experiencing exceptional drought coverage (Pestano, 2015). California has a Mediterranean climate, which is a concentrated rainy period several months of the year and warm to hot temperatures the remaining of the year. For the past four years, California’s rainfall has been below average, which causes PM2.5 levels to go
study of the San Andreas fault system." (USGS) When the 1906 earthquake struck scientist set
Heavy precipitation, the V shape canyons that surround the mountain ranges, and lack of vegetation covering the ground were a perfect formula for flooding in the Los Angeles Basin. The first recorded flood took place in 1815, and it washed away most of the original Pueblo De Los Angeles. The second recorded flood took place in 1825, which apparently changed the course of the River southward to the San Pedro Bay. Floods in 1832 deepened the new direction of the River towards the San Pedro Bay. In 1857 a strong earthquake on the San Andreas Fault caused the River to flood its banks.
Blakey, R. C. (1996). Geologic history of western us. Informally published manuscript, Northern Arizona Univ, Flagstaff, AZ, Retrieved from http://www.jan.ucc.nau.edu
California, a state located on the West Coast of the United States is the most popular state. Its the third largest state by area. California borders Oregon to the North, Nevada to the East, Arizona to the Southeast, and the Mexican States of Baja to the South. On 1850, September 9 California became the 31st state of the United States. California became the 31st state in the Union even though it hasn’t even been part of the United States for less than 2 years.
Mudslides usually occur in hilly areas, for an example, when there was a mudslide in Bangladesh few months back, it occurred at Chittagong. Mudslides occur when a portion of a hill side becomes too weak to hold up its own weight. This is generally caused by an intense amount of rain fall. With all of the new water introduced into the slope the content of liquid makes it so heavy that gravity pulls it downward. Although water plays a major factor in creating the mud that flows in a mudslide the real reason that the land begins to slide is gravity. What happens is mudslides redistribute soil and sediments in a process that can be in abrupt collapses or in slow gradual slides.