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Acid mine drainage essay
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Colorado has an astonishing 23,000 abandoned mine lands. However, long-term mining impacts on ecosystems and ecosystem recovery are not well understood. Studies show that mining activity increases sediment erosion and exposes large amounts of heavy metals that can runoff into nearby lakes. Increased sedimentation and heavy metal pollution can have long-term impacts on surrounding ecosystems. Water and vegetation resources from the surrounding area are used to help power the mine which can result in high levels of deforestation and water level change. Miners also live in the area surrounding the mine and rely on natural resources for their survival. Even after a mine has been abandoned and activity has stopped, acid mine drainage can continue …show more content…
Studies that have been conducted in other regions impacted by mining show little to no recovery to baseline conditions. However, the Forest Hill Mine is a relatively small operation, and there has been a significant amount of time since operations ceased ~100 years ago. This study aims to reconstruct the paleolimnological history of Lily Pond in central Colorado during the past 1500 years. Lily Pond is a kettle lake that formed during the last ice age. The Forest Hill Mine is located about 1200 meters southeast of Lily Pond. The mine operated upstream of Lily Pond and was in use from 1880-1920, with a break from …show more content…
The change in water quality changed the diatom species that could survive. Studies have shown little to no recovery in other lakes that were impacted by mining activity. Therefore, I hypothesize that Lily Pond has not returned to the same ecological state that existed before the start of mining. Initial results from Lily Pond show dramatic changes in diatoms and geochemistry in the top portion of the sediment core. A more robust age model is needed to compare these results with historical records from the Forest Hill Mine and pinpoint exactly how the introduction of mining impacted the area. An age model for the lower portion of the core has been developed (> ~500 years ago). Records from the lower portion of the core act as a “baseline” record that will be used to identify how Lily Pond has recovered from
This is a report based on three days of observations and testing in the region known as the Peterborough drumlin field. It will address a variety of regional elements, such as climate, soil, vegetation, hydrology, geomorphology, and geology. A variety of sites located on the Canadian Shield, the zone of thick glacial deposits to the south, and the transition between them will be the focus of the report. It is supplemented with previous research on the region. September 8, 1999, day one of the field study involved an area of largely granite bedrock that is part of the Canadian Shield and is the most northern point of study (see Map 2). September 9, 1999, day two, involved three main areas of study: the Bridgenorth esker (Map 3), Mark S. Burnham Park (Map 4), and the Rice Lake drumlin (Map 6). These sites are in areas of thick glacial deposits. September 10, 1999, day three, involved studying the Warsaw Caves (see Map 5) as a transition zone between Precambrian Shield rock to the north and Paleozoic rock to the south. A general map of the entire study region is provided by Map 1.
The Geological history of the Houston area includes surface water present in several types of lakes, rivers, and a wide-ranging system of bayous as well as, manmade canals that all share the rainwater runoff management system. In of Harris County 25%-30% of the land is within a 100 year flood plain. Elevation range of Harris 0'-310', so presently land surface and uppermost sediments in the Houston area are geologically very young strata and research isolates that its ages are measured in tens of thousands, not millions, of years. Distinctly this knowledge concludes it is faulted by a natural process, before significant fluid extraction ha...
"Mechanics of Graben Evolution in Canyonlands National Park, Utah." Geological Society of America Bulletin. Web. 05 Dec. 2011. .
At the end of the last ice age windblown silt covered the lava and basalt deposits. This silt would go on to create the fertile rolling hills of the Palouse. This soil is more than a hundred feet deep in places. Soon, enough time passed for vegetation to take place and more soil started to form.1 The lava flows would end up damming streams flowing from the mountains; in turn forming the current lakes of the region. Layered between the flows of basalt are sand and gravel deposits that washed down from mountains.1
The purpose of this paper is to explain and highlight different aspects of the Powder River Basin to include paleogeography, stratigraphy, maturation history of organic material, vitrinite reflectance data, sulfur content, both historical and current production data, as well as the environmental impact in the basin.
“Goose Pond”, written by Thomas Williams seemingly is a novel about the tranquil rural life but intricately portrays the mind and state of a fifty-eight year old man who has just lost his wife. Having natural and peaceful aspects, the story itself is not about the simple rural life in the woods. It depicts how Robert Hurley began to deal and come to terms with his sudden loneliness and realization of his eventual death. Including both the realistic cruelty of life alone and the expectation readers would have from a novel—such like a Norman Rockwell painting; he keeps the readers indulged in the mind and heart of the lonesome Robert Hurley.
Glaciers are an integral part of the world’s climate. In fact, as Richard Armstrong of the University of Colorado says, “Glaciers are key indicators in monitoring and detecting climate change” (Univ. of Colorado, Boulder, 2003, p. 1). Not only are they an important part of monitoring current climate, they can hold many keys to the past. Glaciers are in fact, “a source of paleoclimate data…” (Meier and Dyurgerov, 1980, p. 37). This paleoclimate data can give geologists information on the conditions that were present at the time of the glaciers birth, as well as the approximate age. This has an important role in the geologic time scale of the Colorado Rocky Mountains. These Glaciers played a role in the carving of the present day Rocky Mountains in Colorado, which will be the primary focus of this paper. In addition, glacial formations will be discussed to give the reader background information and the future of the Glaciers in Colorado will close this paper.
Thomas King’s Green Grass, Running Water challenges the prevalent idea of colonial history. King retells and revisions the past in order to convey the post colonial ideas. King uses the creation stories, the four Indians, the narrative, and the three vanishing cars to argue and revise the effects of North America’s history on the Blackfoot people and the telling of the past. From the moment in which Christopher Columbus reached the New World in 1492, it was thought to be the initial discovery of North America (Christopher Columbus). King sets his book in 1992, 500 years after Columbus’ voyage. King’s telling of the past and their effects of colonial history are displayed in the novel.
Removal of the mountaintops causes environmental impacts from blasting. The blasting has caused rocks to be deposited into valleys on the hillsides, burying almost 2,000 miles of streams which feed the Mississippi River. Slurry, the residue which is used to clean the coal can wash into groundwater and may contain arsenic, lead, manganese, iron, sodium, strontium, and sulfate. A recent research study is beginning to link these environmental impacts to the grave health concerns in the Appalachian communities. During most of the Mountaintop removal mining’s history coal industries have been able to obtain permits easily to operate, but once under the Obama administration Environmental Protection Agency (EPA) those permits now take more time to obtain. The permit process requires all applications to be reviewed before being given out to coal
Mountain Top Removal is an American tragedy, the process in which mining companies remove forests and topsoil then explode the mountain apart level by level to get to coal layer. It is estimated that the explosives are equivalent of the Hiroshima bomb. A lot of the mining waste is discarded into valleys and streams; the water runoff is high in silt, ion, and sulfur compounds, which in turn pollute water downstream. Even with chemical treatments, vegetation has a hard time growing on the infertile and highly acidic soil. Mountain top removal occurs in eastern Kentucky, southern West Virginia, southwest Virginia, and east Tennessee. Virtually 1.2 million acres of land has been surface mined and more than 500 mountains have been ruined by mountaintop removal mining.
Objectives • To evaluate the difficulty of mining and reclamation To calculate costs, expenses, income, and profit from a hands-on mining exercise. • To evaluate the effectiveness of reclamation and its added costs to mining. To describe the increasing rarity of some non-renewable mineral resources. Introduction Minerals play an important role in our day-to-day life, but we often do not contemplate how the minerals are obtained. Minerals are scattered all over the world, just like any other resource.
This pristine environment also provided habitat for great diversity of plants and wildlife. Hundreds of species of native plants thrived in forest, marsh, and meadow. But now, in scarcely a century, an equilibrium that endured for thousands of years is rapidly being lost due to environmental degredation and resource values are steadily deteriorating because of human activities. While there is an appearent lose of wildlife and environment that exists in The Lake Tahoe Basin, there is also an insurgance of environmental conservation that has become increasingly powerful in the attempt at stopping these adverse affects on the environment from happening in the hope that the beauty of Lake Tahoe will continue to exist for generations and generations more.
...y question, what good is a profession that destroys your home and your body? While environmental groups make the protection of people and the environment of the Appalachian region top priority, the mining companies focus on acting cheaply, not responsibly. And the policy government keeps their heads in the sand when it comes to this issue because they seek benefits of steady jobs and tax revenue of coal mining instead of seeking to guarantee clean water for Appalachians.
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
In our days, mining for resources is inevitable. The resources we need are valuable in everyday life. Such resources mined up are coal, copper, gold, silver, and sand. However, mining poses environmental risks that can degrade the quality of soil and water, which can end up effecting us humans if not taken care of and many of the damages are irreversible once they have occurred.