Rock units can be correlated best by examining ____.
A)fossil data, rock types, and key beds
B)the presence of oil, rock sequence, and key beds
C)rock type, rock sequence, and the current environment
D)key beds, rock type, and the current environment
E)fossil data, rock type, and the presence of oil

Question

Quizplus · Accepted Answer

Fossil data can provide a unique signature for different rock units in terms of the species present and their relative ages. Rock types can also be used to correlate units across a region. Key beds are distinctive layers of rock that can be traced over long distances and can be used to correlate rock units across different locations. The presence of oil may not be a reliable correlation factor as it depends on the geological history and processes in the area. The current environment may also not be a reliable factor as it is subject to change over time.

Rock Units Can Be Correlated Best by Examining ____