Structures Flashcards
1
Q
4 types od planar geological features
A
bedding,
fault
foliation
joint
2
Q
Equation to find true thickness (t) of unit with known vertical (v) and horizontal (h) outcrop length
A
t= (h sin dip) + (v cos dip)
3
Q
Definition : outcrop
A
physical location of rock at earths surface
4
Q
definition : contact
A
interface between 2 beds or sequences of beds (formations) can be inferred or seen in outcrop
5
Q
True dip calculation
A
tan (angle of dip) = contour interval/
spacing on map between contours
tan-1 (angle of dip) = true dip
6
Q
Gradient calculation
A
sin-1 (change in height/length of hypotenuse)
7
Q
Apparent dip
A
tan (a) * cos
