ACES - Relative Dating

This Law states that if the layer is tilted or deformed, it is because of a geologic force or event.

• Superposition

• Original Horizontality

• Lateral Continuity

• Cross-Cutting Relationship

Identify the type of unconformity shown in the picture.

• Disconformity

• Angular Unconformity

• Nonconformity

Order the layers by youngest to oldest.

(E is pointing to the line)

• D E A B C

• A E D B C

• E A D B C

• E D A B C

These are fossils that help determine the age of rocks and surroundings next to them.

• Index fossils

• Trace fossils

• Body fossils

• just fossils

Order by oldest to youngest.

(the red part is A)

• A E G L C H M D N K L F

• H E G L C M D A N K L

• E G L C H M D A N K F

• F K N A D M H C L G E

TRUE OR FALSE: Nonconformity is when the Sedimentary strata are overlaid on top of the intruding Metamorphic and Igneous layers.

• TRUE

• FALSE

What kind of unconformity in the lower layers of the figure?

• Disconformity

• Nonconformity

• Angular Unconformity

What principle is shown in the picture

• Cross-Cutting

• Lateral Continuity

• Inclusion

• Fossil Succession

TRUE OR FALSE: The rock on the topmost layer is the oldest.

• TRUE

• FALSE

TRUE OR FALSE: Rocks within a rock are younger.

• TRUE

• FALSE