搜索结果: 1-14 共查到“理学 hydrothermal vents”相关记录14条 . 查询时间(0.312 秒)
Hunting for Hydrothermal Vents Along the Galápagos Spreading Center
Galápagos Spreading Center Hydrothermal Vents
2015/7/22
In 1972, at a location in the eastern equatorial Pacific ~ 200 miles northeast of the Galápagos Islands, a young graduate student researcher was using surplus US Navy sonobuoys to listen to the portio...
Biogeochemical Processes at Hydrothermal Vents:Microbes and Minerals, Bioenergetics, and Carbon Fluxes
Biogeochemical Processes Hydrothermal Vents Microbes Minerals Bioenergetics Carbon Fluxes
2015/7/14
Hydrothermal vents are among the most biologically active regions of the deep ocean. However, our understanding of the limits of life in this extreme environment, the extent of biogeochemical transfor...
Chemistry,Temperature,and Faunal Distributions at Diffuse-Flow Hydrothermal Vents:Comparison of Two Geologically Distinct Ridge Systems
Chemistry Temperature Faunal Distributions Diffuse-Flow Hydrothermal Vents Two Geologically Distinct Ridge Systems
2015/7/14
Diffuse-flow, low-temperature areas near hydrothermal vents support life via chemosynthesis: hydrogen sulfide (and other reduced chemical compounds) emanating from the subsurface is oxidized with bott...
Energy Transfer Through Food Webs at Hydrothermal Vents:Linking the Lithosphere to the Biosphere
Energy Transfer Food Webs Hydrothermal Vents Lithosphere Biosphere
2015/7/14
Tectonic and volcanic processes that drive hydrothermal fluid flow and influence its chemistry also regulate the transfer of energy to hydrothermal vent ecosystems. Chemoautotrophic bacteria use the c...
Diffuse Flow On and Around Hydrothermal Vents at Mid-Ocean Ridges
Around Hydrothermal Vents Mid-Ocean Ridges
2015/7/14
Black smokers are the dramatic result of seawater being heated to high temperatures (generally 250° to 350°C) by magmatic systems, then discharging at the seafloor. However, not all seawater that circ...
Growth Kinetics and Constraints Related to Metabolic Diversity and Abundances of Hyperthermophiles in Deep-Sea Hydrothermal Vents
Archaea Biogeography Growth Kinetics Hyperthermophiles Iron Reduction Methanogenesis
2015/1/28
This dissertation research aims to show that there are deterministic microbial distribution patterns based on quantifiable environmental thresholds by determining and rationalizing the relative abunda...
Viruses hijack deep-sea bacteria at hydrothermal vents
Viruses hijack deep-sea bacteria hydrothermal vents
2014/5/13
ANN ARBOR—More than a mile beneath the ocean's surface, as dark clouds of mineral-rich water billow from seafloor hot springs called hydrothermal vents, unseen armies of viruses and bacteria wage war.
Concentrations and distributions of dissolved amino acids in fluids from Mid-Atlantic Ridge hydrothermal vents
deep-sea hydrothermal fluids ligands Mid-Atlantic ridge hydrothermal systems dissolved organic matter
2017/8/9
The concentrations and distributions of dissolved free amino acids (DFAA) were determined in 31 hydrothermal fluid samples from the Logatchev field at 15°N and several hydrothermal vent fields between...
Scientists Locate Apparent Hydrothermal Vents off Antarctica（图）
Apparent Hydrothermal Antarctica
2010/3/10
Scientists at Columbia’s Lamont-Doherty Earth Observatory have found evidence of hydrothermal vents on the seafloor near Antarctica, formerly a blank spot on the map for researchers wanting to learn m...
Supply of gastropod larvae to hydrothermal vents reflects transport from local larval sources
Supply of gastropod larvae hydrothermal vents
2014/4/21
Variation in larval supply to disjunct marine populations can provide insight into larval transport and delivery
mechanisms, especially when compared with observations of physical transport. Daily va...
April 18, 2007，A new "black smoker"--an undersea mineral chimney emitting hot springs of iron-darkened water--has been discovered at 8,500-foot depths by an expedition funded by the National Science F...
Responsible Science at Hydrothermal Vents
Hydrothermal system deep sea the bottom of the sea a giant animal microbial biomass
2015/7/22
Hydrothermal systems of deep-sea spreading centers stand out as islands of life on a seafloor where the abundance of megafauna is otherwise very low. These hydrothermal systems support a dense biomass...
Spatial and temporal patterns in larval supply at hydrothermal vents on the northeast Pacific Ocean
Spatial and temporal patterns larval supply hydrothermal vents northeast Pacific Ocean
2014/5/19
Larval supply in marine benthic invertebrates influences patterns of settlement and recruitment to adult populations. To successfully colonize newly formed or distant hydrothermal vents, which are dis...
Formation of Fe-silicates and Fe-oxides on bacterial surfaces in samples collected near hydrothermal vents on the Southern Explorer Ridge in the northeast Pacific Ocean
Formation Fe-silicates Fe-oxides hydrothermal vents Southern Explorer Ridge the northeast Pacific Ocean
2012/4/1
Samples collected in low-temperature (2–508 C) waters near hydrothermal vents of the Southern Explorer Ridge, in the northeast Pacific Ocean, contained fine ( ,500 nm) Fe-and Mn-oxide and Fe-silicate ...