Lab Final Flashcards
(19 cards)
Phanerozoic Rocks Region
Southern Saskatchewan
Precambrian Rocks Region
Northern Saskatchewan
Contour Line
imaginary line drawn on Earth’s surface connecting points of equal elevation
Contour Interval
the difference in values between two adjacent contour lines
Elevation
the number of meters a point is above mean sea level
Relief
the difference in elevation between the highest and lowest points in an area
Representative Fraction (R.F.)
Ex- 1:10,000
Verbal Scale
Ex- 1 cm = 1 km
Graphic scale
A line or bar drawn on the map divided into units representing ground distances
Vertical Exaggeration Formula
V.E. = V.S. (R.F.)/ H.S. (R.F.)
Axial plane
plane that divides a fold as symmetrically as possible
Axis
line of intersection between axial plane and folded surface
Axial trace
trace of axial plane on ground surface
Limb
parts of fold on either side of axial plane
Strike-slip fault
a horizontal lateral fault
Dip-slip fault
include normal and reverse faults; vertical movement along fault line
Disconformity
two sedimentary layers, bottom has been eroded, top deposited at same plane as lower one
Angular unconformity
two sedimentary layers, bottom layer has been eroded and tilted, top deposited on top at different plane
Nonconformity
igneous or metamorphic layer eroded and sedimentary layer deposited on top
