Project Name PI
An Integrated Study of Energy Metabolism, Carbon Fixation, and Colonization Mechanisms in Chemosy... Dr Stefan M Sievert
Characterizing the distribution and rates of microbial sulfate reduction at Middle Valley hydroth... P Girguis, Dr Peter Girguis
Autotrophic carbon fixation at a shallow-water hydrothermal system: Constraining microbial activi... Dr Dionysis Foustoukos
Characterization of Microbial Transformations in Basement Fluids, from Genes to Geochemical Cycling Dr Peter Girguis
Deep phylogenetic and metagenomic analysis of microbial diversity associated with ferromanganese ... John F. Heidelberg, Benjamin J. Tully, Dr John Heidelberg
Functional gene diversity and expression in methane-hydrate bearing deep subsurface sediments J Glass, Dr Jennifer B. Glass
Functional gene diversity and expression in ocean crust microbial communities Dr Julie L. Meyer
Genomic analyses and microbial cultivations in unexplored sub-seafloor ridge flank and continenta... J Russell, J Biddle, Joseph A. Russell
IODP Expedition 336- Mid-Atlantic Ridge Microbiology S Wankel, Dr Scott Wankel
Metagenomic analysis of microbial CpG methylation in Delaware estuarine riverbank sediment J Biddle, A Marsh, Dr Adam Marsh
Metagenomic signatures in seafloor rocks and subsurface sediments: East Pacific Rise and Loihi Se... E Singer, Esther Singer
North Atlantic Meridional Circulation during the Last Glacial Maximum: Density Structure and Pre-... Spivack, Pockalny, D'Hondt, Dr Arthur J. Spivack
Novel peptidases in subsurface sediments: Activities and substrate specificities A Steen, Dr Andrew Steen
Oceanographic control and global distributions of subseafloor microbial life and activity S D'Hondt, Dr Steven L. D'Hondt
Passing electrons through marine sediments: Cultivation and characterization of microbes that uti... A Rowe, K Nealson, Dr Annette R. Rowe
Proteomic profiling of neutrophilic, iron-oxidizing Mariprofundus ferrooxydans, strain PV-1 R Barco, K Edwards, Dr Katrina Edwards
Studying genomic and population biology of dehalogenating Chloroflexi in deep sea sediments by si... A Spormann, Dr Alfred M. Spormann
World-wide exploration of microbial eukaryote diversity and activity in the marine subsurface W Orsi, Dr William D. Orsi

Description Center for Dark Energy Biosphere Investigations (C-DEBI) - A NSF Science and Technology Center for resolving the extent, function, dynamics and implications of the sub-seafloor.

The Earth's "deep biosphere" includes a variety of sub-surface habitats on Earth, such as mines, aquifers, and soils on the continents, and the sediments and igneous rock below the ocean floor. It is estimated that nearly half of the total biomass on Earth resides in the deep biosphere. Technological hurdles have limited examination of the sub-surface biosphere sites to relatively few locations and only shallow drilling. These limits have hindered deep biosphere research, skewing data sets towards environmental accessibility, and precluding the development of a more accurate global census.

The largest potential subsurface biome is also the least accessible: the sub-seafloor biosphere which is estimated to harbor one third of all biomass on Earth in the two environments of igneous ocean crust and sediments. Today, we know far too little about the organisms of these sub-surface microbial communities or the critical abiotic and biotic processes within this unique biosphere. However, attention to the sub-surface Earth and biology, is increasing, and the technologies available for sampling, monitoring, and experiments has dramatically improved in the last decade.