Newfoundland Formation

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The story of the geological makeup of Newfoundland began in the mid to late Precambrian era and lasted until the Mesozoic era (1,250-66 million years ago). Newfoundland has three distinct parts, the western zone (Long Range Mountains and Appalachians), the central zone (raised from the Iapetus Ocean) and the eastern zone (Avalon Peninsula).

NewFoundland
NewFoundLand’s formation started about 1250 million years ago, in the Precambrian Era. At the highland cliffs of the Long Range Mountains. The core of what is known as Eastern North America collided slowly with another continent. This caused it to form a vast mountain range. The time period that this had happened was the Precambrian Era. which was about 4,600,000,000 years ago, the Precambrian …show more content…
Eventually this rubble cemented together to form limestone breccia and shales. The Central Zone of Newfoundland was mainly formed by sediment, rocks and breccias from the ancient Iapetus ocean. The main form of rock in the central zone was sedimentary. Sedimentary rocks are formed when igneous rock is eroded by wind, water or ice. Small pieces of eroded igneous rock were eroded and carried away by running water into prehistoric seas. over millions of these particles or sediments, were deposited into horizontal layers thousands of meters thick. the weight of the seas and the sediments themselves, compressed the layer into to rock. the time period was palaeozoic, during this time period, the formation continued. the continents collided to form the supercontinent pangea. the water of the Iapetus ocean was warm which allowed large amounts marine life and coral to live in. the marine life and the sediments build up and because of the pressure limestone was created. The limestone that was created fell into the deep oceans and mixed in with the dust and cemented to make Breccia. this event took place about 600-650 million years ago when the . the next part of the central zone creation, as …show more content…
When magma cools deep within the earth, it does so very slowly because it is not exposed to cool temperatures. Slow cooling allows large crystals to develop in the rock. Magma cooling near the surface does so more quickly; this allows only much smaller crystals to form. Rocks that form beneath the earth's surface, with either large or small crystals, have a coarse texture and are known as intrusive igneous rock. Igneous rock contains metallic minerals such as nickel, copper, gold, and silver. sedimentary rocks are formed when igneous rocks are eroded by wind water or ice. then are deposited into horizontal layers, thousands of meters thick. the weight then compresses the layers into rocks. The Mesozoic era lasted about 180 million years and marked the beginning of the breakup of Pangaea.At various times during the Mesozoicperiod, seas and swamps covered much of central and western Canada.While this area was under water, new layers of sedimentary rock formedon top of those formed in the Paleozoic era. As Pangaea broke up, the North American plate moved towards the west and collided with the Pacific plate.This caused huge amounts of magma to rise to within a few kilometres of the surface of the North American plate. Here it cooled and solidified into a large mass of granite. This granite structure was later uplifted and formed the Coast Range Mountains. In the shallow seas that periodically covered the Interior Plains,
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