Podcast
Questions and Answers
What is the primary factor that influences the movement of groundwater through an aquifer?
What is the primary factor that influences the movement of groundwater through an aquifer?
- Permeability (correct)
- Humidity
- Geothermal activity
- Altitude
What phenomenon occurs as a result of excessive groundwater extraction?
What phenomenon occurs as a result of excessive groundwater extraction?
- Vegetation growth
- Water purification
- Subsidence (correct)
- Land erosion
Which of the following is a major challenge faced by the High Plains Aquifer?
Which of the following is a major challenge faced by the High Plains Aquifer?
- Natural replenishment getting faster
- Increased water table levels
- Excessive pumping of water (correct)
- Pollution from agricultural runoff
What determines the density of a drainage system in a particular basin?
What determines the density of a drainage system in a particular basin?
How is a tarn primarily formed in a glacial landscape?
How is a tarn primarily formed in a glacial landscape?
What environmental significance do cirques hold in their ecosystems?
What environmental significance do cirques hold in their ecosystems?
What process leads to the formation of a moraine?
What process leads to the formation of a moraine?
Which of the following best describes the term 'saturated zone'?
Which of the following best describes the term 'saturated zone'?
Which factor affects the storage capacity of groundwater in an aquifer?
Which factor affects the storage capacity of groundwater in an aquifer?
Excessive groundwater extraction can lead to the gradual sinking of the Earth's surface.
Excessive groundwater extraction can lead to the gradual sinking of the Earth's surface.
Name one impact of excessive groundwater extraction on the High Plains Aquifer.
Name one impact of excessive groundwater extraction on the High Plains Aquifer.
A _____ is formed in a glacial landscape when depressions created by melting glaciers become filled with water.
A _____ is formed in a glacial landscape when depressions created by melting glaciers become filled with water.
Match the following glacial landforms with their descriptions:
Match the following glacial landforms with their descriptions:
What is one of the primary risks associated with the declining water levels in the High Plains Aquifer?
What is one of the primary risks associated with the declining water levels in the High Plains Aquifer?
A moraine is formed when glaciers deposit loose rock material as they advance.
A moraine is formed when glaciers deposit loose rock material as they advance.
Identify one environmental significance of a cirque.
Identify one environmental significance of a cirque.
Flashcards
Groundwater Movement
Groundwater Movement
The flow of water underground, influenced by gravity, porosity (storage space), and permeability (ability to flow).
Aquifer
Aquifer
A layer of permeable rock or sediment that stores and transmits groundwater.
Subsidence
Subsidence
The gradual sinking of the Earth's surface, often caused by excessive groundwater extraction.
High Plains Aquifer
High Plains Aquifer
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Drainage Density
Drainage Density
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Tarn
Tarn
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Cirque
Cirque
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Moraine
Moraine
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Groundwater Movement Factors
Groundwater Movement Factors
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Subsidence Cause
Subsidence Cause
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High Plains Aquifer Importance
High Plains Aquifer Importance
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Drainage System Density
Drainage System Density
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Tarn Formation
Tarn Formation
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Cirque Formation
Cirque Formation
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Moraine Definition
Moraine Definition
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Study Notes
Groundwater and Fluvial Movements
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Groundwater Movement Factors: Gravity influences water movement, porosity (rock storage capacity), and permeability (water movement ability) affect how water flows through aquifers. Saturated and unsaturated zones determine water availability.
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Subsidence from Excessive Extraction: Excessive groundwater removal leads to subsidence (land sinking). Potential consequences include landslides and flooding.
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Ogallala Aquifer Significance: The High Plains Aquifer (Ogallala) is crucial for the USA due to its large size and importance in agriculture and diverse uses. Excessive pumping and overuse present challenges like water depletion.
Drainage Basin Stream Order
- Drainage Density: Stream order (1-4, etc.) and number of streams determine drainage system density. Factors like the number and size of streams within an area influence density.
Glacial Landforms: Cirque, Moraine, and Tarn
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Cirque Formation: Cirques are bowl-shaped depressions created by glaciers. Plucking, frost action cause rock pieces to break off. The accumulation of snow plays a crucial role for water sources. Pyrénées France is an example region of Cirque.
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Moraine Formation: Moraines form from the accumulation of rock and debris deposited by glaciers. Moraine presence indicates a glacial history for a region. Examples like the Kettle Moraine in Wisconsin exist.
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Tarn Formation: Tarns are formed when glaciers melt, and water collects in depressions left behind. They're important for local ecosystems as they provide freshwater habitats. A location example: Snowdonia National Park.
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