Abstract: The carbon isotopic composition of algal organic matter preserved in marine sediments provides a window into the evolution of the global carbon cycle through geologic time, including variations in atmospheric CO2 levels. Traditional models for interpreting marine isotope records assume that these archives largely reflect kinetic isotopic discrimination by the carbon-fixing enzyme RubisCO.
10AM: Zach Adam, opening remarks Sophia Roosth, "Life is not a natural kind" Yi Ruiqin and M. Aono, "Production of water-alternative solvents and informational polymers by radioactive minerals on the Hadean Earth" Masashi Aono, "Amoeba-inspired computing: Chemical reaction as solution searching"
The building blocks of life as we know it, including amino acids, nucleobases, and sugars, were synthesized early in the history of the solar system in space, in processes likely common throughout the universe. After delivery to habitable worlds, such building blocks may have biased independent origins of life, if they occurred, towards similar solutions. For example, nucleic acids or their cousins may serve as a common physical basis for heritability and evolution.