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EnglandGeologyQuick questions
Time, past life and past climates
Quick questions on Relative dating and stratigraphic principles: superposition, cross-cutting and way-up indicators - Eduqas A-Level Geology
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is the principles of relative dating?Show answer
Relative dating places events in order (older or younger) rather than giving ages in years. Five principles do almost all the work.
What are way-up (younging) indicators?Show answer
When beds are steeply dipping, folded or overturned, superposition alone can mislead, so you need way-up indicators that record the original top and bottom:
What is q1?Show answer
State which is older, a dyke or the bed it cuts through, and name the principle. [2 marks]
What is q2?Show answer
Explain how graded bedding shows the way up. [2 marks]
What is q3?Show answer
State the principle that lets you correlate a bed across a valley where it is missing in the valley floor. [2 marks]
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