Lesson 1: WEATHERING Flashcards
This process includes degradation or breaking down of rocks into smaller segments known as sediments by the action of the following: water, ice, acids, salts, animals, gravity, and changing temperature.
WEATHERING
is caused by the effects of changing temperature on rocks, causing the rock to break apart. This process is sometimes assisted by water.
PHYSICAL
It occurs when rocks surface is frequently exposed to water, wind and gravity
Abrasion
Occurs when water continually seeps into cracks, freezes and exapands
FREEZE-THAW
Is a human made structure that is most vulnerable to weathering due to freezing and thawing cycle in mountainous region
CONCRETE HIGHWAYS
It can happen as cracks develop parallel to the land surface as a consequence of the reduction in pressure during uplift erosion
EXFOLIATION
Is caused by rainwater reacting with the mineral grains in rocks to form new minerals(clays) and soluble salts
Chemical
Occurs when rocks are weakened by different biological agents like plants and animals
BIOLOGICAL
Classication of biological weatherinh
A. Biological Weathering by Physical Means
B. biological Weathering by Chemical Compound
The process of growth increase typically by the gradual accumulation of additional layers or Matter
ACCRETION
Process of heat transfer by the bulk movement of molecule within fluids such as gases an fluids
CONVECTION
The process of transmission of energy from one particle of the medium to another with the particles being in direct contact with each other
CONDUCTION
(also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation.
Radioactive decay
Is a geological process that was formed, originated, and located below th surface of the earth.
ENDOGENIC PROCESS
Molten rocks found beneath the surface of the earth
Magma