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Landscapes. Landscape Development. Landscapes: A region on Earth’s surface in which various landforms are related by a common origin. Factors That Impact Landscape Development. Climate Local Bedrock Geologic Structures Human Activities. Types of Landscape Regions. Mountains : - PowerPoint PPT Presentation
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Landscapes
Landscape Development
• Landscapes:• A region on Earth’s surface in which
various landforms are related by a common origin.
Factors That Impact Landscape Development
• Climate
• Local Bedrock
• Geologic Structures
• Human Activities
Types of Landscape Regions• Mountains:• Has the greatest relief between the highest peak and the
deepest valley.• Relief: (change in elevation from the highest point to the
lowest point)• RELIEF:
10m
0m
10m - 0m = 10m
HOW ARE MOUNTAINS CREATED?
• A daddy mtn and a mommy mtn fall in love and because they love each other so much…….
•MR. O’D!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Hey Mama!!!!
HEHEHE• Tectonic forces push Earth up to create a
mtn.
• Convergent plate boundary
Plateau
• A plateau landscape is often relatively flat or rolling uplands that streams have cut valleys into.
• Rock structure:• “It’s sedimentary my dear Watson” • Smaller relief than mtns• Larger than plains• Examples of plateaus: • Colorado Plateaus near the Grand Canyon
Plains
• Plains are generally flat and are at a lower elevation.
• Rock Structure: flat layers of sedimentary rocks.
• Midwest and Florida
Landscapes and Culture
• Landscapes help shape the culture of an area.
• Physical boundaries can help bring together communities for a common need or shut off a community.
Climate and Landscapes• Landscapes in moist environments are
generally rounded.
• (Chemical Weathering, Good Soil)
• Those is arid environments show sharp angles and steeper slopes.
• (Physical Weathering, Not Enriched Soil)
Drainage Patterns
• Drainage Patterns: The way water runs off of a landscape.
• Rule of thumb:
• Streams will tend to follow zones of weaker rocks.
Four Types of Drainage Patterns1. Dendritic:
• Branching
• Usually found on flat laying rock or uniform rock.
• Ex. Appalachian Plateau near Oneonta
2. Radial• Rolls off of a dome
• Usually found by a circular volcano or dome mountain.
• Ex. The rim of the Adirondacks
3. Rectangular• Follows zone of weaker rocks in
rectangular patterns.
• Usually found in faulted, tilted or folded rock layers.
• Ex. Finger Lakes and the Central Adirondacks.
4. Annular• Circles, then down, circles, then down.
• Usually found when you have a dome with upturned layers.
• Ex. Esopus Creek near Phoenicia, NY.
New York and the Ice Ages• New York was covered with glaciers
• Alpine glaciers: valley glaciers, these are the ones that make U shaped valleys and move due to their weight and the slope of the land they are on.
• Continental glaciers: ice sheets that move solely on their own weight.
• The Finger Lakes were created by advancing glaciers.
Erosion and Deposition by Glaciers
• Erosion: takes away from the land
• Ex. Finger Lakes
• Deposition: adds to the land
• Ex. Drumlin: tear shaped hills created in front of the advancing glacier.
• Ex. Moraines: plies of unsorted soil and rocks left where the glacier stopped advancing. (Long Island shows this)
Drumlin
Terminal Moraine
Kettle Lakes• : when buried blocks of ice cause a
depression in the ground and it fills with water.