Podcast
Questions and Answers
What does correlation in geology usually mean?
What does correlation in geology usually mean?
Determining age relationships between rock units or geologic events in separate areas.
Why might a geologist want to correlate rocks and events in distant parts of the world?
Why might a geologist want to correlate rocks and events in distant parts of the world?
To understand better how the earth has evolved.
How does tracing lateral continuity help in correlation?
How does tracing lateral continuity help in correlation?
By tracing individual strata for considerable distances within an area.
What are the limitations of correlation based on continuity of strata?
What are the limitations of correlation based on continuity of strata?
How does correlating rocks from one place to another contribute to understanding the geologic history of a region?
How does correlating rocks from one place to another contribute to understanding the geologic history of a region?
What is the purpose of correlating rocks in South America and Africa?
What is the purpose of correlating rocks in South America and Africa?
What is the advantage of using formations instead of strata for correlation?
What is the advantage of using formations instead of strata for correlation?
When can correlation by lithological similarity be more reliable?
When can correlation by lithological similarity be more reliable?
What are marker horizons and how are they used in correlation?
What are marker horizons and how are they used in correlation?
What are key beds and how are they useful in correlation?
What are key beds and how are they useful in correlation?
According to the structural criteria, what is the surface separating two successions of rock formations known as?
According to the structural criteria, what is the surface separating two successions of rock formations known as?
What is the basic premise of the structural criteria for stratigraphic classification and correlation?
What is the basic premise of the structural criteria for stratigraphic classification and correlation?
How does the petrographic study of rocks help in correlation?
How does the petrographic study of rocks help in correlation?
In what areas of geological activity can ash layers serve as distinctive key beds?
In what areas of geological activity can ash layers serve as distinctive key beds?
When can correlation between two regions based on lithological similarity be made with extreme caution?
When can correlation between two regions based on lithological similarity be made with extreme caution?
How can correlation be more reliable when using formations instead of strata?
How can correlation be more reliable when using formations instead of strata?
