prepare to be emazed

Creating your website,

it will only take a few seconds!

Innuitian Mountains.pptx

siarehman00
Innuitian Mountains
Landform Regions
  • Mountain range located in northernmost parts of Nunavut and Northwest Territories
  • Continental glacier in Hudson Bay region pushed land upwards, influenced location
  • Created with mainly sedimentary rocks, some mountains have igneous and sedimentary, depending on location
  • Mainly sedimentary due to pressure put on sediment by shifting of tectonic plates
  • Sediment condensed, created mountains, other landforms
Location and Rock Types
  • Illustrated with Barbeau Peak (pictured here)
  • Visible condensed layers of sediment
Location and Rock Types
  • Bedrock consists of Precambrian rock
  • Mountain range forms the eastern edge of the Canadian Shield
  • Mountains with igneous rocks date back as far as 1.2 billion years ago, as early as 65 million years ago
  • Mountains have clear layers of rock, even igneous mountains have layers
  • Dragon Cliffs are famous examples, visible layers of flood basalt, a type of igneous rock (pictured)
Climate
  • Average temperature can drop to around -30 to -35 degrees
  • Average condition in the summer is not much better, at best temperature is 5 degrees
  • Approximately 85% of the soil is trapped in ice, making permafrost
  • Only 50 days a year to grow crops due to permafrost
  • Relief precipitation occurs on top of the mountains, causes rain shadow, but cold weather keeps permafrost from previous precipitation
  • Ocean currents carry cold winds down from the north

Climate
  • Top layer of permafrost called "active layer," stretches down only one metre
  •  Active layer is only part of permafrost that thaws in summer
  • Causes waterlogged surface
  • No plants can grow well through the permafrost
  • Causes thin soil layer and very little humus
  • Only lichens are able to grow
  • Not proper conditions for windbreaks (pictured below)
Factors Affecting Climate
  • Wind comes off of Arctic Ocean to the north, blows cold front south
  • Baffin Bay provides slightly warmer wind, helps stabilize climate
  • Mountains cause relief precipitation, cold winds carry downwards, keep permafrost frozen in place
  • Snow and ice caused on tops of mountains, permafrost covers base
  • Fjords in northernmost islands cause winds with forces of hurricanes
Natural Resources
  • Not much wildlife or many trees, much too cold to grow
  • Limits animal/human population (lack of food, cold climate)
  • Ahead of the Arctic tree line, too much snow and wind for trees to grow properly
  • Only small, hardy plants can survive, grow close to the ground to retain as much heat as possible
  • Large barren areas covered in permafrost, creates large water reservoir
  • Lots of zinc and iron, various other metals
  • Fossil fuels available in the form of coal
  • Less expensive to extract resources from Appalachians
Factors Influencing Current Landscape
  • Younger than other mountain ranges such as Appalachians, created in Mesozoic Era
  • Anywhere from 248- 65 million years ago
  • Created with upwards shift of North American plate
  • Not eroded/weathered significantly due to young age, fjords created many years ago, not much other landscape change
  • Striations from glaciers shown in bedrock (pictured below)
  • Glaciers mainly in northern Nunavut, one in Northwest Territories, number eight in total
  • Most prominent alpine glaciers found here
summary
In conclusion, the Innuitian Mountains are a very cold and dry place. The mountains are located in northern Nunavut and part of the Northwest Territories. The mountains are mostly made of sedimentary rock, with some appearances of igneous and metamorphic rocks. There is permafrost covering almost all available space, and there is a rain shadow across much of the land due to relief precipitation. This makes it nearly impossible for plants to grow here, and those that do are hardy grasses, mosses, or lichens. There are many geographic features such as fjords and bays that influence the climate by providing wind. There are various natural resources, such as iron, zinc, and other metals, but they are not harvested, as it is easier to retrieve resources from other mountains ranges similar in composition, such as the Appalachians. The mountain range is slightly younger than the Appalachians, and was created in the Mesozoic era. This explains the prominent alpine glaciers and lack of erosion, unlike its sister range.
Thank you for        listening!
; ;

emaze