Explorations: homework questions answered. (p.25-26)
1. Why are the Appalachian Mountains generally rounded in appearance?
Answer: The Appalachians are generally rounded because of the effects of erosion, particularly by ice sheets. Below, we have a present day example of this happening in the New Zealand Southern Alps.
Theme Study (A):
Vertical metamorphic sequence
Rock type: Mainly greywacke and schist
Location: Franz Josef Glacier, Southern Alps, New Zealand
Feature: Cliffs of highly metamorphosed rock, ice-carved glacial valley, active glacier,
KEY POINTS: Glacier travels downwards into zone of higher grade metamorphism (schists). It collects and deposits rocks of different layers. Glacier has carved steep-walled valley typical of this form of erosion. Glacier periodically advances and retreats.
2. a) Newfoundland and Labrador have the highest point of land in the Atlantic Region.
2. b) Mount Caubvick 1652 metres (part of the Torngut mountain range) is about 200 km from the northern tip of Labrador, close to the Quebec border.
Spectacular Website viewing the Torngat mountain range
3. a) A lowland area that straddles New Brunswick and Nova Scotia borders the Northumberland Strait. Click for numerous examples of lowlands.
3. b) Prince Edward Island has the largest share of lowlands.
3. c) The highest point of land in Prince Edward Island is 142 m. in Queen's County.
4. Experiment: How fold mountains, like the Appalachians, are formed? Illustrates how layers will buckle and fold under pressure.
5. Fiords are found in coastal regions around the globe, in the higher latitudes of the Northern and Southern hemispheres. They developed along mountainous western coasts where glaciers carved deep chasms through ancient river valleys or along lines of structural weakness (geological).
Fiord -- Alaska,USA
...more Alaskan fiords
|The fiords at Gros Morne National Park off the west coast of Newfoundland and Labrador are among the national treasures in a province that's also become a "Center of Excellence" in cold ocean technology and marine sciences.|
Labrador and Quebec Border
BONUS SECTION (Himalayas = Mount Everest 8,850 m. or 29,035 feet)
World's Highest Peaks
Virtual Tour Site -Climb up video