shape of Michigan not only today‚ but also during the glaciers of the Ice Age? The glaciers that covered Michigan over one million years ago scraped the top layer of the landscape as they moved‚ carving landscapes throughout the land. As the glaciers melted‚ rivers streamed through the channels created by the glacier. The streams that formed from the glaciers spread the materials caught in the glacier throughout the land down south. The glaciers aimed to travel the least resistant path and thus the
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raised in it have seen a sight that many people can’t fathom. Many Americans see the world climate change‚ but don’t take action because they have not seen the major effects of it. Being born and raised in Juneau‚ Alaska I have sadly seen over a dozen glaciers recede at a rapid rate‚ each year being a record-breaking year. Years where snow fall has been minimal because the difference of a few degrees. Unfortunately‚ these unusual years are become the standard. The farther north you travel the larger the
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Weathering & Erosion Weathering is the process that produces change in the surface of rocks exposed to the atmosphere and/or hydrosphere. Physical weathering is breaking rock by force. ex: hitting‚ scratching‚ cracking Frost action (AKA ice wedging)- Water seeps into small cracks in rocks. When the water freezes it expands creating great pressure. The crack widens and allows water to seep deeper into the rock. (Robert Frost’s Mending Wall makes a reference to a frost heave
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Pre A level task Geography Erosional landforms: Corrie = Corries‚ also known as cirques‚ are often the starting point of a glacier. Snowflakes collect in a hollow. As more snow falls‚ the snow is compressed and the air is squeezed out to become firm. With the pressure of more layers of snow‚ the firm will‚ over thousands of years‚ become glacier ice. Erosion and weathering by abrasion‚ plucking and freeze-thaw action will gradually make the hollow bigger. Corries will decrease because of
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all of North America in over 6‚000 feet of snow and ice. During this time‚ the temperatures went up and down causing the glaciers to melt or to expand‚ often times causing them to move. This carved the landscape of Michigan (Why). Glacial erosion can happen in two primary ways‚ the first is called plucking‚ and this happens when rocks and debris stick to the underside of a glacier and then are carried off with it. The second is called abrasion‚ this is more of what we might think on when we think of
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Stromatolites- Planet Embryos- Rodinia- Prokaryotic cells- last universal common acestor‚ heat-loving‚ heterotroph Siccar Point‚ Scotland- has the unconformity of angular unconformity Moraine- poor sorted glaciall till Erratics- rocks dropped by glaciers C. Lyell- Isua‚ Greenland- Basic 1. Uniformitarianism is that the laws of nature have not changed in the course of time. The present is the key to the past‚ so it helps geologists today find out about the worlds past. 2. present is the key
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Explain how the processes of weathering‚ erosion‚ transportation and deposition have shaped New Zealand. New Zealand is an amazing Ever-changing land‚ full of natural wonders. But there is more to our country than this‚ much more‚ because our country is unique on Earth. Four and a half billion years have made it a country of extraordinary landforms‚ through four main processes. These processes are called weathering‚ erosion‚ transpiration and deposition. As well as our environment and physical shape
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MINERALS 5 CHARACTERISTICS OF A MINERAL: 1)Naturally Occuring; 2) Be a colid; 3) Have an orderly crystalline structure; 4) have a definite chemical composition; 5) generally be inorganic Which are not classified as Minierals & Why: Gold‚ Water‚ Synthetic Diamonds‚ Ice & Wood: Gold-YES – naturally occurring; Synthetic Diamond: NO – Manmade; Water: NO – liquid state‚ only a solid material can be considered a mineral – in it’s naturally occurring ice state it is a solid and therefore a mineral;
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flood fury in uttarakhand A scientific analysis of the reasons for the disaster that struck Uttarakhand‚ particularly the temple town. THE primary trigger for the Uttarakhand disaster following the very heavy rain during June 16-18 was the extremely unusual behaviour of the monsoon this year over north India. The incessant‚ heavy rainfall over three days‚ perhaps accompanied by a few cloudburst-type events (which cannot be confirmed)‚ resulted in flash floods and associated landslides. The devastation
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Section A - Restless Earth The earth’s structure At the centre of the earth is the core. Surrounding that is a mass of molten rock called the mantle. The thin layer on the outside is called the crust. There are two types of crust‚ continental and oceanic. The crust is made up of seven major plates and many smaller ones. The plates move due to convection currents rising in the mantle. Distribution of earthquakes and volcanoes Mainly found along plate boundaries. In
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