Results 31 to 40 of about 2,483,713 (259)
Environmental Selection and Biogeography Shape the Microbiome of Subsurface Petroleum Reservoirs
mSystems, 2023 Petroleum reservoirs within the deep biosphere are extreme environments inhabited by diverse microbial communities and represent biogeochemical hot spots in the subsurface.
Daniel A. Gittins +2 more
doaj +1 more source
Frontiers in Earth Science, 2022 Research into the deep biosphere requires an understanding of both the microbial community at a given site and the geochemical and hydrological factors that support that microbial community.
Cristopher J. Schuler +9 more
doaj +1 more source
Geofluids, 2022 Methane is a powerful greenhouse gas, of which most is produced by microorganisms in a process called methanogenesis. One environment where methanogenic microorganisms occur is the deep biosphere.
Femke van Dam +2 more
doaj +1 more source
Weighing the deep continental biosphere [PDF]
FEMS Microbiology Ecology, 2013 There is abundant evidence for widespread microbial activity in deep continental fractures and aquifers, with important implications for biogeochemical cycling on Earth and the habitability of other planetary bodies. Whitman et al. (P Natl Acad Sci USA, 95, 1998, 6578) estimated a continental subsurface biomass on the order of 10(16) -10(17) g C.
Sean, McMahon, John, Parnell
openaire +2 more sources
Contamination tracer testing with seabed drills: IODP Expedition 357 [PDF]
Scientific Drilling, 2017 IODP Expedition 357 utilized seabed drills for the first time in the history of the ocean drilling program, with the aim of collecting intact sequences of shallow mantle core from the Atlantis Massif to examine serpentinization processes and the deep ...
B. N. Orcutt +7 more
doaj +1 more source
Sampling across large-scale geological gradients to study geosphere–biosphere interactions
Frontiers in Microbiology, 2022 Despite being one of the largest microbial ecosystems on Earth, many basic open questions remain about how life exists and thrives in the deep subsurface biosphere.
Donato Giovannelli +11 more
doaj +1 more source
The hadal zone is an important and heterogeneous sink of black carbon in the ocean
Communications Earth & Environment, 2022 Black carbon accumulation rates in hadal trenches in the deepest regions of the oceans could be seven-fold higher than the global ocean average, according to geochemical and isotopic analyses of sediments from six trenches in the Pacific Ocean.
Xi Zhang +16 more
doaj +1 more source
Nature Communications, 2022 Dissolved organic matter in the Fennoscandian Shield deep continental bedrock fracture waters of varying characteristics and ages carries a strong terrigenous signature, and only a small proportion of this potential energy source links to the deep ...
Helena Osterholz +6 more
doaj +1 more source
Activity and abundance of denitrifying bacteria in the subsurface biosphere of diffuse hydrothermal vents of the Juan de Fuca Ridge [PDF]
, 2012 Little is known about fixed nitrogen (N) transformation and elimination at diffuse hydrothermal vents where anoxic fluids are mixed with oxygenated crustal seawater prior to discharge.
G. Lavik +30 more
core +2 more sources
Eos, Transactions American Geophysical Union, 1999 The first inhabitants of planet Earth were single‐celled microorganisms and they are still with us today. Their name is truly legion, for they live everywhere, from boiling hot springs at the Earth's surface and on the seafloor to the coldest waters of the oceans and the Antarctic lakes.
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