Explore the fascinating follow-up to the "Dark Oxygen" discovery in this informative video. Delve into the formation of oxygen-producing polymetallic nodules at the seafloor, their recharging process, and the fate of hydrogen during water electrolysis. Learn about the potential for synthesizing these nodules, their oxygen contribution compared to photosynthesis, and the implications for marine life. Investigate the role of dark oxygen in the origin and evolution of life on Earth, including its potential impact on animal evolution. Gain insights into the requirement of oxygen for nodule formation and the presence of ancient enzymes. This comprehensive exploration addresses viewer questions and expands on the groundbreaking discovery that challenges our understanding of the global oxygen cycle.
Dark Oxygen Discovery Follow-Up - Addressing Comments and Questions
Overview
Syllabus
First dark O2 video recap
Questions to be answered in this video
How do polymetallic nodules form?
3 types of nodule – control metal sorption
How the nodule ‘batteries’ produce O2
How are the nodules ‘recharged’?
Where does the H from H2O go?
Can we synthesize nodules instead of mining them?
How much O2 do the nodules produce?
O2 is in the deep sea, regardless
Does dark O2 increase the range of marine animals?
Implications for the origin of life on Earth
Do 2.4+ Gya enzymes implicate dark O2?
Requirement of O2 for nodule formation***
Did dark O2 contribute to animal evolution?
Taught by
GEO GIRL
