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Full Description
In 1936 a German chemist identified certain organic molecules in ancient rocks and oils as the fossil remains of chlorophyll, presumably from plants that had lived millions of years in the past. Many years later this insight was revisited and the term biomarker coined to describe fossil molecules whose molecular structures could reveal the presence of otherwise elusive organisms and processesand then, the hunt was on. Echoes of Life is the story of those molecules and how they illuminate the history of the earth and its life. It is also the story of how a few maverick organic chemists and geologists defied the dictates of their disciplines and, at a time when the natural sciences were fragmenting into ever-more-specialized sub-disciplines, reunited chemistry, biology and geology in a common endeavor.
Contents
1. Molecular Informants: A Changing Perspective of Organic Chemistry ; 2. Looking to the Rocks: Molecular Clues to the Origin of Life ; 3. From the Moon to Mars: The Search for Extraterrestrial Life ; 4. Black Gold: An Alchemist's Guide to Petroleum ; 5. Deep Sea Mud: Biomarker Clues to Ancient Climates ; 6. More Molecules, More Mud and the Isotopic Dimension: Ancient Environments Revealed ; 7. Microbiologists (Finally) Climb on Board ; 8. Weird Molecules, Inconceivable Microbes, and Unlikely Proxies: Marine Ecology Revised ; 9. Molecular Paleontology and Biochemical Evolution ; 10. Early Life Revisited ; 11. Thinking Molecularly, Anything Goes: from Mummies to Oil Spills, Doubts to New Directions
