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DEBI RCN Research Themes
What major questions do we address in deep biosphere research?

Deep biosphere studies seek to answer questions that range from exploratory and census-level to some of the most complex and fundamental in the earth and life sciences today. For example: What is the nature and extent of life on Earth? What are the physico-chemical limits of life on Earth? How metabolically active is the deep subseafloor biosphere, and what are the most important redox processes? Are there exotic metabolic processes occurring? How are microbes dispersed in the deep subseafloor biosphere? How does life evolve in deeply buried geological deposits beneath the ocean floor? These questions are diverse and demand interdisciplinary research approaches in microbiology, molecular biology, geology, geochemistry, engineering, hydrology and more. Our research findings have the potential to impact major current questions such as energy creation, climate change, and the very nature of evolution of life on Earth. To address these challenges, DEBI focuses across four broad research themes:

I.
Activity in the deep subseafloor biosphere: Function & rates of global biogeochemical processes
II.
Extent of life: Biomes and the degree of connectivity (biogeography & dispersal)
III. 
Limits of life: Extremes and norms of carbon, energy, nutrient, temperature, pressure, pH
IV.
Evolution and survival: Adaptation, enrichment, and repair

More general information about deep biosphere research can be found here.


RCN THEMES | THEME I | THEME II | THEME III | THEME IV

Photos courtesy of Iron Microbial Observatory (FeMO) and Woods Hole Oceanographic Institution (chimney image).