Mechanical weathering: the effects of frost

Mar 31, 2019

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Mechanical weathering: the effects of frost. Chapter 4. What is freeze-thaw action?. Terms: Expand Contract Freeze Thaw Strain/pressure Scree. Rocks with cracks + Moisture (rain, dew, fog etc…PRECIPITATION) + Temperature drop below 0°C (Freezing Point).

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freezing point
thaw action
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scree rocks
ice thaws

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Mechanical weathering: the effects of frost

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Mechanical weathering: the effects of frost Chapter 4

What is freeze-thaw action? Terms: Expand Contract Freeze Thaw Strain/pressure Scree Rocks with cracks + Moisture (rain, dew, fog etc…PRECIPITATION) + Temperature drop below 0°C (Freezing Point) Freeze thaw action is a type of mechanical weathering where water gathers in the cracks of the rocks. When the temperature drops below freezing point the water freezes and turns into ice. The volume of ice expands the crack of the rock. This puts a great strain on the rock. As the temperatures rise the ice thaws and the rock contracts. Over time this repeated action causes the rock to shatter into scree.

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Mechanical weathering: the effects of frost

Mechanical weathering: the effects of frost

Presentation Transcript

E-Marketing, 3rd edition Judy Strauss, Adel I. El-Ansary, and Raymond Frost

Exogenous Landforming Processes

Weathering and Soil Formation

Some Interesting Facts about Mechanical Engineering

Weathering, Erosion and Deposition

Landforms and Weathering

Awakening the giant of teacher leadership a presentation by David Frost University of Cambridge Faculty of Education a

Texas Ecoregions

The George W. Woodruff School of Mechanical Engineering Georgia Tech

Weathering, Erosion, Soils, and Mass Wasting

Mechanical Behavior of Materials

Weathering

Mechanical Ventilation in COPD patients

Chapter 3 Mechanical Injury

Situation 1 Mechanical P rinciple

Effects of Domestic Violence on Children

WEATHERING AND EROSION

Weathering and Soil Formation

P. S. Wei Xi-Wan Chair Professor Department of Mechanical and Electro-Mechanical Engineering

Mechanical Diagnosis &amp; Therapy

What are Mechanical Seals?

Mechanical Diagnosis & Therapy