Fundamentals of Molecular Biogeochemistry

Are you curious about how scientists trace the history of life using invisible chemical clues? Molecular biogeochemistry provides the tools to read the deep history written in organic molecules preserved in rocks and sediments. This course provides a foundational understanding of the key chemical compounds—molecular biosignatures—that reveal the evolution of biological processes and environmental conditions over geological time. You will gain the critical terminology and conceptual framework necessary to analyze and discuss the primary literature in this field. What you'll learn: * Understand the fundamental pathways of lipid biosynthesis and how these compounds serve as distinct molecular biosignatures. * Analyze the processes of diagenesis and catagenesis that affect the preservation and transformation of molecular fossils in the geological record. * Master the key analytical techniques, including chromatography and high-resolution mass spectrometry, used to isolate and identify complex organic molecules from environmental samples. * Learn how isotopic contents (stable isotopes) provide crucial information about metabolic pathways and ancient environmental conditions. * Apply foundational knowledge to interpret distribution patterns of chemical fossils in sediments and rocks spanning Earth’s history. The course begins by defining key terminology and exploring the origin of major biomolecules. It then systematically covers their distribution in modern environments, their transformation pathways, and the methods used for their analysis and interpretation in ancient contexts. This course is designed for absolute beginners interested in the intersection of chemistry, geology, and biology. No prior advanced knowledge of organic chemistry or geology is required, only a basic familiarity with scientific concepts. Start tracing the chemical history of life on Earth today.