The study looked at rocks in the Huanxian-Zhenyuan area to understand how they were formed. By analyzing different types of rocks, the researchers found that the way the land moved during the formation of certain rock layers was different. This led to variations in the types of rocks, their order, and how they were deposited. As a result, different layers have different properties that affect how oil and gas can be found. The study suggests using different methods to explore for resources in these different rock layers.