ES, Long Quiz 1 Flashcards
map that represents a specific theme and has a specific goal
thematic map
two dimensional map that is able to represent 3d with the use of contour lines
topographic map
it tells the map user or reader the ‘what’ and the ‘where’ of the
represented features
map title
it defines the symbols that are used in the map.
legend
These lines illustrate relief or elevation
by connecting points of equal value.
contour lines
When contour lines are closed to one another the slope is_____
steep
when lines are further apart, they are____
gentle
The bold and
thick contour is referred as
index contour
The
thinner line is the
intermediate contour
r while the broken line is the
supplementary contour
It has hachure
marks on the downhill side and indicates a decrease in elevation
closed depression
shows the direction of the map
north arrow
is a diagrammatic representation of the earth surface, drawn to scale
map
force that causes deformation on rock
stress
stress that causes rocks to squeeze together
compressional stress, produces reverse faults
This stress is present when a body of rock is pulled apart.
tensional stress, produces normal faults
is a change in shape
or volume of the rock as a response to the stress
strain
The strain or deformation can
either be:
elastic, brittle, ductile
amount of stress on the rock is small or when it
is applied gradually
elastic
occurs when the strength of the rock is exceeded
brittle deformation
This results to
stretching, bending, or folding of the rock without breaking.
ductile deformation
rocks near the surface are _____ and experience lesser confining
pressure than the rocks which are buried deeper
cooler
Brittle deformation forms _______ which is created when the
stress exceeds the strength of the rock thereby breaking or fracturing it.
faults
Ductile
deformation, on the other hand, creates structures called ______ which are bends in
rocks formed as a response to compressional forces.
folds