There is no denying the presences of the Great Lakes, not only are they unavoidable, but they have also been a major player in the growing of civilization in North America and Canada. A person would have to live under a rock, no pun intended, to not know about these phenomenons. Most would ask from where did these Great Lakes come? How did they form? How are they beneficial? What are some of the Great Lakes here? A Great Lake is an extremely large inland freshwater sea, which is amazing since we are surround by oceans occupied with salt water. The Great Lakes are the largest system of fresh surface water on Earth, which makes them vital to our survival. However, they have been subject to damage by pollutants. There are five lakes in North America, which are: Lake Michigan, Huron, Erie, Superior, and Ontario. Not many people take the time to try to understand our Great Lakes or the importance of them. Coming to understand what these Great Lakes are, how they got here, and how they are beneficial to our ecosystem will ultimately help us further appreciate their vital diversity and encourage us to preserve them.
The foundation of the Great Lakes began around three billion years ago, which is known as the Precambrian Era. The Precambrian Era contains numerous ecological events, which consists of volcanic activity to erosion to the mountains and hills seen today being formed. Then during the Pleistocene Epoch or known as the “Ice Age, occurred between 1.6 million and 10,000 years ago. At least four times during the Pleistocene Epoch, large masses of ice advanced and retreated over the surface of what is now North America. As the glaciers advanced, giant sheets of ice flowed across the land, leveling mountains and carving out massive ...
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Zimmermann, Kim Ann. "Lake Erie Facts."LiveScience. TechMedia Network, 17 May 2013. Web. 30 Mar. 2014b.
Zimmermann, Kim Ann. "Lake Michigan Facts."LiveScience. TechMedia Network, 14 May 2013. Web. 27 Mar. 2014c.
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Glacial Lake Peterborough had many attributing spillways attached to it, feeding meltwater and sediment from the ice margin and or other glacial lakes. Much of the sediment that was deposited in Glacial Lake Peterborough came from either from the stagnant ice blocks located on the Oak Ridges moraine or from the Lake Algonquin drainage system. Much of the deposition in this lake was dominated by sediment stratification, which may have been largely influenced by thermal stratification. As a result of thermal stratification occurring in this glacial lake sediment inputs were greatly influenced depending on the different sediment densities between the lake bottom water to that of the incoming meltwater and if the inflow density was less/more than the bottom water than the lake water bottom, than new transport and depositional paths were created
More specifically, Trois-Rivieres is located in an area with flat and rolling hills, and fertile soils that play a huge part of Trois-Rivieres’s economy. The formation of the Great Lakes-St Lawrence Lowlands happened during the Paleozoic era. “The Great Lakes-St Lowlands were formed by the effects of glaciation. This is caused the city’s rolling landscape where flat plains are interrupted with glacial hills and deep river valleys. After the glacial period, when a large volume of water melted out from the glaciers, the lakes were large, even larger than they are today. However, the lakes shrank to their present size, and flat plains of sediments remained. These sediments formed excellent soil for farming” (Pandya, n.d). This process left behind a large amount of sediment rock, which was beneficial for the manufacturing industry.
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.
Once More to the Lake by E.B. White, the canoe calmly floating in the lake. The Pond by Thoreau, the boat
Described as “ the jewel in the crown” of New Hampshire’s Lakes Region, Lake Winnipesaukee is the state’s largest standing body of water, nestled in the foothills of the White Mountains east of Laconia, in Belknap and Carroll counties. The lake is roughly 21 miles long and between 1 and 9 miles wide, with a surface area of approximately 72 square miles and a maximum depth of 212 feet. There are 258 islands in Lake Winnipesaukee, with a total shoreline of approximately 288 miles. This glacial, mountain lake was formed 1, 000, 000 million years ago resulting from glacial activities, that also consequently shaped the region’s beautiful landscape.
(Quimby 6). Between this time period, in 6000 B.C., the basins of the upper Great Lakes became entirely ice free
While some might say that Lake Bonneville seems like “forever ago,” it is actually a really young feature. With the Lake mainly forming and flooding around 20,000 years ago it’s not even scraping the surface of the forever ago that the earth was even formed into what we know today. Even mammals and the human race has only been on the planet for a blink of an eye in the earth’s relative history. With the best knowledge adn research dating the earth to 4.5 billion years the Flood’s actual stamp on the timeline would be much much closer then we would think. Not only did Lake Bonnevile create some beautiful geography, it also left strong, powerful scars in the form of river terraces and shorelines giving us a good glimpse into the physical histroy of the region.
As global temperatures and ocean levels rise, the water levels of the Great Lakes continues to fall. As the lakes hit their all time lowest level in global history in 2012, society remains ignorant to the imposing doom that lurks ahead. Since the Great Lakes make up the largest group of fresh water lakes on Earth and are responsible for approximately 21% of the Earth’s fresh water supply, this issue is becoming one of the largest environmental and economical issues our modern world faces. The effects of this issue include destroying animal habitats and a major economic market; shipping. Water levels in the Great Lakes have been dropping for the past fourteen years, but it wasn’t until boats were scraping the bottom of Lake Huron that people began to take notice. This terrible environmental issue has been dubbed a long term cycle of over evaporation and not enough precipitation to replenish the Lakes. Keith Kompoltowicz, chief of watershed hydrology for the United States Army Corps of Engineers in Detroit has been monitoring this issue for a decade and has made startling discoveries, such as in 2012, he discovered Lake Michigan and Lake Huron’s water levels only rose four inches after winter, whereas the Lakes have been regularly recorded as gaining a foot of water after the winter season had ended. This amount of water added is not enough to maintain a proper water level during the dry, hot summer seasons that evaporate much water from the Great Lakes. While some scientists say that this is just a cycle that will adjust itself naturally, most experts that have been studying this phenomenon, such as Kompoltwicz, would agree that the issue has gone to far
Lake Erie is a fascinating biological system despite many years of climate and human destruction along with ecosystem challenges. The burning river now has become the greatest ecosystem recovery of the world.
I am reading Hunger by Michael Grant, and I am on page 558. In Hunger, the town of Perdido Beach faces hunger since all of the non-perishable food is eaten and the perishable food goes bad. They could save the meat, if they put the meat and vegetables in the freezer immediately after the F.A.Y.Z. (Fallout Alley Youth Zone) began. They look through the fields and a find cabbage. They find mutated worms in the cabbage field that can rip through flesh. The worms kill E.Z. a sixth grader at Perdido Beach. They are still figuring out a way to find and grow food. Orc volunteers to pick the cabbage if he is paid in beer. Sam agrees since Orc is the only one that can pick Sam is tired of being everyone’s parent and wants a more people to help him. In this paper, I will be evaluating and predicting.
Pollution is something we create. It is man made. We pollute our air, and very importantly, our water. The great lakes is one o...
Before Lake Coeur d’Alene existed, the St. Joe River ran through the present lakebed northward and up through the Rathdrum Prairie before turning west and into the Spokane Valley. About 15,000 years ago, during the peak of the last glacial period, huge glaciers covered much of British Columbia. This ice, which was almost 4,000 feet thick, unimaginably covered all but the highest mountain peaks. The glacier slowly crept down into North Idaho, stopping just north of Coeur d’Alene (Wuerthner, 30, 32).
Shetler, in the book Seeds of Change: Five Hundred Years Since Columbus, supports the myth that the new world was an unspoiled paradise by stating that " Native people were transparent in the landscape, living as natural elements of the ecosphere. Their world…was a world of barely perceptible human disturbances"(Shetler 1991). Sale contends that the Indians had a benign effect and refering to them as the "Ecological Indian".(Sale 1990) These are fine examples of the new way of portraying the Native Americans as "Noble Savages". There is no question that the Europeans had a more obvious influence on the landscape than the American Indian, but the notion that the Native Americans were "transparent" or "benign" to the landscape is an absurd over exaggeration. When in fact, "twenty million indigenous people were hunting gathering, burning, tilling, and otherwise managing North America"(Anderson 1991). It is not the intention of this paper to claim the American Indians did more harm to the environment than the European Settlers, but one important notion that must be understood before proceeding is that "even though a landscape may appear green it is not in indicator of natural ecology". It is the intention of this paper to show that the Native Americans had a significant impact on the ecology of the Eastern North American Landscape, which is unknown to many scholars.
My childhood trips to Lake Michigan form part of my identity as a Michigander. Lake Michigan is a system of five, fresh water lakes dubbed the great lakes. Four out of the five great Lakes surround the state of Michigan; as a result most Michiganders travel a nearby Great Lake in the summer. Like other Michiganders, my family heads to Lake Michigan every summer to spend time on Lake Michigan. My Grandmother purchased a trailer by the Lakeshore and allowed her eight children to spend a week of summer on the Lakeshore. Over the years my vacations on Lake Michigan shaped great memories for me.