I want to know the answer to the following question:
What did Darwin hope to find as he continued to explore new geologic discoveries?
All the background I'm provided with is that "To show that there had been enough time for natural selection to work slowly, he again cited Principles of Geology and other observations based on sedimentation and erosion, including an estimate that erosion of The Weald had taken 300 million years.". Is that enough to answer the question?