Define the law of superposition

The law of superposition states that the oldest rocks in a stratigraphic sequence will be at the bottom, and age of each layer decreases as you move upwards (I.e. a layer in a sequence cannot be younger than one above it). This assumes that the sequence is still the right way up, and that none of the layers intruded after the sequence was deposited.

Answered by Henry H. Geology tutor

3223 Views

See similar Geology A Level tutors

Related Geology A Level answers

All answers ▸

Describe the sequence in which minerals crystallise in a cooling magma using Bowen's Reaction Series.


Which fossil group will show 5-fold (Pentameral) symmetry, is composed of plates, a mouth and an anus on opposite surfaces?


Describe how you can distinguish between intrusive and extrusive igneous rocks?


What are the main differences between bivalves and brachiopods?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences