Results 41 to 50 of about 67,700 (153)

Hydrothermal activity lowers trophic diversity in Antarctic sedimented hydrothermal vents [PDF]

open access: yes, 2016
Sedimented hydrothermal vents are those in which hydrothermal fluid vents through sediment and are among the least studied deep-sea ecosystems. We present a combination of microbial and biochemical data to assess trophodynamics between and within ...
Bell, James B.   +6 more
core   +1 more source

Superconductivity above the lowest Earth temperature in pressurized sulfur hydride

open access: yes, 2015
A recent experiment has shown a macroscopic quantum coherent condensate at 203 K, about 19 degrees above the coldest temperature recorded on the Earth, 184 K, in pressurized sulfur hydride.
Bianconi, Antonio, Jarlborg, Thomas
core   +2 more sources

Isotopic fractionations accompanying sulfur hydrolysis.

open access: yesGEOCHEMICAL JOURNAL, 2000
In the direct hydrolysis of elemental sulfur, immediate precipitation of the sulfide as the copper salt allows measurement of the initial sulfur isotopic compositions of product sulfide and sulfate. δ34S values for product sulfide and sulfate and for parent elemental sulfur at reaction temperatures of 50 to 200°C differ by less than 3‰ and demonstrate ...
openaire   +2 more sources

What Controls the Sulfur Isotope Fractionation during Dissimilatory Sulfate Reduction? [PDF]

open access: yesACS Environ Au, 2023
Sim MS   +6 more
europepmc   +1 more source

Reconciling discrepant minor sulfur isotope records of the Great Oxidation Event. [PDF]

open access: yesNat Commun, 2023
Uveges BT   +4 more
europepmc   +1 more source

Carbon isotope fractionation and depletion in TMC1

open access: yes, 2012
12C/13C isotopologue abundance anomalies have long been predicted for gas-phase chemistry in molecules other than CO and have recently been observed in the Taurus molecular cloud in several species hosting more than one carbon atom, i.e.
Adande   +30 more
core   +1 more source

Novel sulfur isotope analyses constrain sulfurized porewater fluxes as a minor component of marine dissolved organic matter. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Phillips AA   +9 more
europepmc   +1 more source

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