Terminology (Leaving Cert DCG): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is a stratum in geological terminology?
What is a stratum in geological terminology?
A layer of rock with uniform thickness
Which surface of a stratum is the headwall?
Which surface of a stratum is the headwall?
The top surface
What does the footwall of a stratum represent?
What does the footwall of a stratum represent?
The lower surface
How must thickness of a stratum be measured?
How must thickness of a stratum be measured?
Perpendicular to surfaces
What is an outcrop?
What is an outcrop?
Visible portion at Earth's surface
What does the strike of a stratum indicate?
What does the strike of a stratum indicate?
Horizontal direction of rock layer
What does the dip of a stratum measure?
What does the dip of a stratum measure?
Angle with horizontal plane
Why are both strike and dip measurements needed?
Why are both strike and dip measurements needed?
To describe 3D orientation fully
What is a borehole used for in geology?
What is a borehole used for in geology?
Investigating subsurface geology
Which is a common mistake when measuring stratum thickness?
Which is a common mistake when measuring stratum thickness?
Measuring along the slope