Results 31 to 40 of about 171,085 (187)
Diffuse flow environments within basalt- and sediment-based hydrothermal vent ecosystems harbor specialized microbial communities [PDF]
, 2013 Hydrothermal vents differ both in surface input and subsurface geochemistry. The effects of these differences on their microbial communities are not clear.
Campbell, Barbara J. +6 more
core +3 more sources
Tracking the Serpentinite Feet of the Mediterranean Salt Giant
Geosciences, 2018 Interpretation of seismic profiles and results of scientific drillings in the Mediterranean subseafloor provided indication of gigantic salt deposits which rarely crop out on land, such as in Sicily.
Vittorio Scribano +2 more
doaj +1 more source
Sea-floor tectonics and submarine hydrothermal systems [PDF]
, 2005 The discovery of metal-depositing hot springs on the sea floor, and especially their link to chemosynthetic life, was among the most compelling and significant scientific advances of the twentieth century. More than 300 sites of hydrothermal activity and
de Ronde, Cornell D. J. +2 more
core +1 more source
Geosciences, 2020 The 2012–2016 White Island (Whakaari) eruption sequence encompassed six small explosive events that included one steam driven and five explosive phreato-magmatic eruptions.
Arthur Jolly +4 more
doaj +1 more source
Cody hydrothermal system [PDF]
, 1982 The hot springs of Colter's Hell are the surface manifestations of a much larger hydothermal system. That system has been studied to define its extent, maximum temperature, and mechanism of operation. The study area covers 2700 km/sup 2/ (1040 mi/sup 2/) in northwest Wyoming.
openaire +2 more sources
Peptide Synthesis in Early Earth Hydrothermal Systems [PDF]
Astrobiology, 2009 We report here results from experiments and thermodynamic calculations that demonstrate a rapid, temperature-enhanced synthesis of oligopeptides from the condensation of aqueous glycine. Experiments were conducted in custom-made hydrothermal reactors, and organic compounds were characterized with ultraviolet-visible procedures.
Lemke, KH, Bird, DK, Rosenbauer, RJ
openaire +4 more sources
VolcanicaRangitoto volcano is the most recent (⁓0.6 ka) and voluminous volcano in New Zealand's Auckland Volcanic Field (AVF). In this study, we investigate the status of its hydrothermal system using a combination of self-potential (SP) and CO2 gas flux ...
Alutsyah Luthfian +5 more
doaj +1 more source
AIMS Geosciences, 2022 Now there is a huge variety of scenarios of prebiotic chemical evolution, culminating in the emergence of life on Earth, which demonstrates the obvious insufficiency of existing criteria for a reliable consideration of this process. This article develops
Vladimir Kompanichenko +1 more
doaj +1 more source
Role of Stress in the Origin of Life
Life, 2022 The article shows the compatibility of the concept of thermodynamic inversion (TI) of the origin of life with the theory of stress in (micro)biology. According to the proposed TI concept, the first microorganisms on Earth were formed through an effective
Vladimir Kompanichenko +1 more
doaj +1 more source
A flow-through hydrothermal cell for in situ neutron diffraction studies of phase transformations [PDF]
, 2006 A flow-through hydrothermal cell for the in situ neutron diffraction study of crystallisation and phase transitions has been developed. It can be used for kinetic studies on materials that exhibit structural transformations under hydrothermal conditions.
Brugger, Joël +5 more
core +2 more sources