Canadian Shield Case Study

How the first Native people arrived has always been shrouded with mystery, yet there have been theorists to suggest they came in one way or another. “Heavily glaciated during the Pleistocene epoch (Ice Age), the early prehistory of Canada mirrors the withdrawal of the Ice” (Lightfoot 2009: 249). The Laurentide sheet and the smaller Cordilleran ice sheet had created floors of the Chukchi and the Bering Sea, creating a bridge between Asia and Alaska. This bridge has been presumed to be the route in which our long ago ancestors first entered the New World. It was then though Beringa, humans then begun to create settlements all over

For example, The appalachian Mountains were formed by a massive continental collision over 300 million years ago. According to page 88 in my science notebook, the rocks in the Chattooga River is evidence of the continental collision. Mountains are formed when two continental plates collide, and form the mountains. The Appalachian mountains, were formed during Pangea. The North American Plate and the African Plate collided. When this happened the Appalachian Mountains were formed. These mountains then grew bigger, but as soon as it started growing, it also eroded. Erosion and

2. Four massive ranges—the Rockies, the Sierra Nevada, the Cascades, and the Coast Ranges, arose in western North America approximately 135 million to 25 million years ago. According the theory of “Land Bridge,” a “Land Bridge” linked up Asia and North America across the Bering Sea and the Gulf of Alaska.

During the Ice Age, the water froze into massive glaciers and exposed a land bridge that connected Eurasia and North America.

originally came over to North America via the Bering Strait at a time when the

About 225 million years, all of the world’s land was contained in one supercontinent, named Pangea. This supercontinent would eventually separate itself into the continents that are known today, due to continuous movement of the earth’s tectonic plates, which led to major shifting and folding of the earth’s crust. This shifting formed many of the mountain ranges that exist today, such as the Appalachians and the Rocky Mountains. However, the time of Pangea’s separation into multiple continents and the time of the formation of the mountain ranges aren’t synonymous; for instance, the Appalachians were most likely formed before Pangea’s separation. About some 2 million years ago, a Great Ice Age befell the earth, which caused a

For many years, I have always wondered how Michigan was shaped. I did not realize that water could have such a huge impact on the way Michigan was made. From doing research, I recognized that there has been four Ice Ages on Earth. The last Ice Age, Pleistocene Epoch began and ended two million years to 12,000 years. At this time, hot and cold temperatures swayed and glaciers receded to advance into the interglacial periods. In the United States, and around the world glaciers have carved out our landscape, making what the world is today.

-North America and Asia were reconnected so that’s how people migrated through during 15,000 BP.

Connecticut's landscape and surface change from 3 elements named tectonic plates, Glaciation, and Weathering and erosion.

The major consensus is that first Americans came across an ice bridge from Siberia. This is prominent in their facial features that share similarities of the natives of Siberia. The first people could make it as far as Africa until the ice bridge opened up about 14,000 years ago. Prior, the ice sheets stopped any travel. When the sheets did open up, they spread in a time frame of several years, along with their stone work, known as Clovis points. The people, named after these points spread down North America, hunting mammoths and other now extinct

Indians arrived in America some 30,000 to 40,000 years ago. Archeological findings and Radiocarbon testing suggested that the prehistoric people who populated the Americas were hunters following the herds of wooly mammoths. They walked from Siberia across a land bridge into Alaska. They headed south toward warmer climates, slaughtering the mammoths as they went. As the glaciers melted, the oceans rose and covered this land bridge, creating the present-day Bering Strait and separating Alaska from Russia. By the time Christopher Columbus arrived, they were millions of what might be called First Americans or Amerindians occupying the two continents of Americas. The first noted documentation of the Beringia theory of the peopling of North America was by Jose de

The Canadian Shield is the largest of the physiographic regions covering more than half of Canada and consists of the provinces Quebec, Ontario, Northern Manitoba and Saskatchewan, Nunavut and over half of North West Territories. Apart from its occupations in Canada, portions of the shield also spans all the way to United States. As of now, the shield is fairly flat, along with rounded hills of rock that are roots of ancient mountains. Mainly igneous and metamorphic rock compose the shields land. From this rock many valuable minerals can be harvested from it, such as large quantities of lead, gold, copper, zinc, and other important materials. Resulting numerous cities and towns in the shield to rely on mining industries for jobs. As of mining,

primates were able to migrate from Asia to North America 56 million years ago because of huge volcanic eruptions, which released an ample amount of greenhouse gases leading up to an intense period of global warming. Because of this, the vegetation of North America began to change. The cool forests turned into tropical rain forests who kept their leaves all year round so they can provide food and shelter for these primates, allowing them to migrate to North America. At About 70 million years ago, a piece of earth’s crust under the Pacific Ocean dove down under North America making it rise creating the Rocky Mountains. As the Rocky’s continued to rise, the land under the inland sea was forced up and all of the water drained into what is now

Before Christopher Columbus came and found the Americas. About 14,000 years ago there was a land bridge connected by Siberia and Alaska. But due to the last ice age water levels had been increasing. This led to the land bridge going under water. Now fast forward 14,000 years later Christopher Columbus had reached as what was known as the New World in 1492. When they discovered there were many native people on this land. Native American tribes were all over the place. Well two of the biggest tribes were the Incas and the Aztec people who each had over 25 million people in their tribe.

The Canadian Shield is a landform Region that covers almost half of Canada, including Nunavut, Quebec, Labrador, Manitoba and Saskatchewan. The Canadian Shield is a landform that is composed of igneous and metamorphic rocks. It has a huge boreal forest ecosystem, hence, a lot of lands in the Canadian Shield are covered with trees. Due to the amount of trees and the boreal forest ecosystem, a number of animals such as horned owls, black bears and geese liked to live in the lands of the Canadian Shield. The Canadian Shield is covered with small lakes, this makes fishing a great recreation for human to do. The letter “A”, “C”, “A”, “N”, “E” and “D” reflects the information above.