What did James Hutton discover as proof that the earth was a old earth

Answer 1

James Hutton discovered several pieces of evidence that supported the idea of an old earth, including the presence of rock layers that had undergone extensive folding and faulting, the erosion of landforms such as mountains and valleys, and the formation of sedimentary rocks in a variety of different environments. He also recognized the slow processes of erosion, weathering, and sedimentation as key factors in shaping the earth's surface over long periods of time. This evidence led Hutton to propose the principle of uniformitarianism, which suggests that the same geological processes that we see in action today have been shaping the earth's surface for millions of years.