Structural Geology (Part A) Flashcards
Sedimentary rock strata generally consist of parallel….separated by…..
(1 word, 2 words)
Beds, bedding planes
Discontinuities running at right angles to each other and roughly perpendicular to bedding direction are called….
(1 word)
Joints
An outcrop occurs where a rock….meets the ground surface
(1 word)
Bed
On a bedding plane the direction of horizontal is called the….
(1 word)
Strike
Lines drawn on a bedding surface which connects points of equal height above ordnance datum are called….lines
(1 word)
Strike
Dip is the maximum….below….made by a bedding plane
(1 word, 1 word)
Angle, horizontal
The dip of a bed must be given in terms of both….and….
(1 word, 1 word)
Amount or Angle, direction
An outcrop of young rock surrounded by older rocks is called an…
(1 word)
Outlier
Arch-shaped folds are called…and trough shaped folds are called….
(1 word, 1 word)
Anticlines, Synclines
A fault is formed when rocks….along a…plane
(1 word, 1 word)
Fracture, Shear
Give two terms used to describe a fault at which movement is predominantly horizontal
(4 potential)
Wrench, tear, transform, transcurrent
On a geological map the same beds may appear repeated in either side of a….fault
(1 word)
Strike
A line of 0.2mm thickness drawn on a 1/50,000 scale map represents a thickness of….meters on the ground
(1 word)
10m
A fold is formed when rocks….
(1 word)
Bend
An outcrop of old rocks surrounded by younger rocks is called an….
(1 word)
Inlier
