Exogenic Process Flashcards
These are the processes that take place near the Earth’s surface, that makes the surface wear away
Exogenic Process
What are the 4 types of Exogenic Process.
WEATHERING, EROSION, MASS WASTING, SEDIMENTATION
The process of breaking down of rocks into smaller pieces
Weathering
The breaking down of rocks into pieces without any change in its composition. In this process, the size and shape of rock changes.
Physical Weathering
There are changes in composition of rocks due to the chemical reactions
Chemical Weathering
The movement of the weathered rocks from their site of the weathering
Erosion
Occurs when Earth materials settles in low lying areas
Deposition
Natural process in which a material is carried to the bottom of bodies of water and forms into solids
Sedimentation
Refers to the large mass of Earth materials being moved by gravity along a slope
Mass Wasting
The movement of sediment from broken rock
Erosion
The dropping of sediment in a new place
Deposition
Results in the sliding of coherent rock materials along a curved surface
Slump
Occurs when mud travels down a slope very quickly
Mudflow
Slow, gradual movement of soil or regolith downhill over time
Soil Creep
Occurs when pieces of rock break loose from a steep rock face or cliff
Rock Flow
Type of slide characterized by the chaotic movement of rocks, soil, and debris mixed with water and/or ice
Debris Slide
A moving mass of loose, mud, sand, rock, water and air that travels down a slope under the influence of gravity
Debris Flow
A downslope viscous flow of fine-grained materials that have been saturated with water and moves under the pull of gravity
Earthflow
_______ can remove soil, rocks, and dissolved material from one are to another
Water
Large amount of dust, sand, and volcanic ash can be blown by ______ over huge distances
Wind
It is the agent of erosion that causes sand to form into large sand dunes
Wind
______ has been known to travel over entire oceans.
Dust
It is a body of ice that is constantly moving very slowly because of gravity
Glacier
______ can move rocks and rock particles through glaciers
Ice
This is also known as mass movement
Gravity
When rocks are weathered, the rock particles can fall from the rocks due to the force of gravity
Gravity
The lack of vegetation cover to hold the loose particles
Vegetation Removal
It is vibration and also a factor that triggers mass wasting
Earthquake
Rapid movements are commonly found in steep slopes while slow movements are found on gentle slopes
Over-steepened slope
Rain water adds weight and act as lubricant to weathered material
Water
It is the reponse of oxygen with minerals
Oxidation
If the iron oxidizes, the mineral in rocks _________.
decomposes
Rusting is an example of this chemical reaction
Oxidation
Rock forming minerals like amphibole, pyroxene, and feldspar react with water and form different kinds of clay minerals
Hydrolysis
It occurs in specific minerals which are dissolved in water
Dissolution
The breaking down of rocks is caused by impact and friction
Abrasion
Animals exacavate into the ground to create a space for habitation
Burrowing Animals
Activities such as digging, quarrying, denuding forests and cultivating land contribute to physical weathering.
Human Activities
The roots grow causing penetration into the crack, expand, and in the long run, break the rock.
Organic Activity
Rocks expand and are fractured when expose to high temperature and low temperature
Temperature
Rocks have fracture in its surface and when water accumulates in the crack and at that point freezes, the ice expands and break the rocks apart
Frost Wedging
The rock expands, cools and became brittled and fractured due to tectonic forces
Pressure
What are 4 factors that triggers mass wasting?
-Over-steepened slope
-Earthquake
-Water
-Vegetation Removal
Rapid movements are commonly found in ________
steep slopes
Slow movements are found on _______
gentle slopes
the slow downhill flow of soil
Solifluction
