The goal of this book is to explore how geology and microbiology are connected and how they shape the Earth's history. Scientists are discovering how living organisms influence the atmosphere, oceans, and even the formation of valuable resources like oil and minerals. By working together, experts in geology, microbiology, and chemistry are uncovering the secrets of past life on Earth and how it affects the planet today. This collaboration helps us understand how microbes and minerals interact, and how they have shaped the Earth over millions of years.