Chp 14 Final exam topics
Geography 104 with Halfen at University of Kansas
About this deck
By: kayt marceaux
Created: 2011-12-10
Size: 20 flashcards
Views: 21
Created: 2011-12-10
Size: 20 flashcards
Views: 21
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Geology
The science that deals with the earth's physical structure and substance, its history, and the processes that act on it.
Geomorphology
The study of the physical features of the surface of the earth and their relation to its geological structures.
denudation
The removal of a covering or surface layer.
Erosion
The process of eroding or being eroded by wind, water, or other natural agents.
Weathering
the breaking down of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters.
also known as slope movement or mass movement, is the geomorphic process by which soil, regolith, and rock move downslope under the force of gravity.
Mechanical Weathering
The breakup of a body of rock into smaller rocks of the same type.
Chemical Weathering
The decompostition and alteration of rocks due to chemical actions of natural physical and biological processes. Ex: Red soil means Iron is present and has "rusted"
Controls of weathering
Properties of parent rock, Varies minerals weather at different rates, and A rocks structure affects its susceptibility to cracking and fragmentation. As well as: climate, soil, and time.
Frost wedging
expansions and contraction of wather in rock cracks due to freezing and thawing.
Thermal Expansion
the tendency of matter to change in volume in response to a change in temperature
Halocasty
the growth of salt crystals. When saline water seeps into cracks and evaporates depositing salt crystals, the rocks are then heated up the crystals will expand putting pressure on the surrounding rock which will splinter the stone in to fragments.
Exfoliation
successive layers of a large plutonic rock break loose and fall when the erosion of overlying material permits the rock to expand upward.
Hydrolic Action
strong enough to loosen sediment along the river bed and banks this will take rocks from the side of the banks and add it to the rivers loads.
Hydrolysis
a chemical weathering process that results in the decompostition of silicate molecules within rock through the reaction of hydrogen and hydroxyl ions in water.
Oxidation
a form of chemical weathering in which oxygen chemically combines with metallic iron to form iron oxides resultin in the loss of electrons.
Dissolution/Carbonation
a type of chemical weatherin caused by rainwater that has absorbed atmospheric carbon dioxide and formed a weak carbonic acid that slowly disolves rock.
Biological Weathering
A number of plants and animals may create chemical weathering through release of acidic compounds, i.e. moss on roofs is classed as weathering. Mineral weathering can also be initiated and/or accelerated by soil microorganisms.
Rockfall
quantities of rock falling freely from a cliff face
Soil Creep
the gradual downhill movement of soil, trees, and rocks due to the force of gravity.
About this deck
By: kayt marceaux
Created: 2011-12-10
Size: 20 flashcards
Views: 21
Created: 2011-12-10
Size: 20 flashcards
Views: 21
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have been getting MUCH better grades on all my tests for school. Flash cards, notes, and quizzes are great on here. Thanks!”
Kathy
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