2. Geologic Time
Stratigraphic Correlation — Quiz
Test your understanding of stratigraphic correlation with 5 practice questions.
Practice Questions
Question 1
Which type of stratigraphic correlation is most effective for establishing the relative ages of widely separated rock units based on the evolutionary sequence of fossils?
Question 2
A geologist is examining two rock outcrops. Outcrop A contains a distinctive sandstone layer with ripple marks, while Outcrop B, 50 km away, has a similar sandstone layer with identical ripple marks and grain size. What is the most appropriate initial method for correlating these two layers?
Question 3
Which of the following units represents a body of rock defined by its time of formation, irrespective of its lithology or fossil content?
Question 4
When constructing a regional timeline of geological events, which type of stratigraphic correlation is essential for establishing the relative order of events and their temporal equivalence across different locations?
Question 5
A geologist identifies a distinctive, thin layer of iridium-rich clay in rock sequences across several continents. This layer is known to mark a major extinction event. Which type of stratigraphic correlation would this layer be most useful for?