Results 11 to 20 of about 32,530 (245)
Seafloor hydrothermal systems [PDF]
Journal of Geophysical Research: Solid Earth, 1995 The discovery of seafloor hydrothermal systems approximately two decades ago has led to a major reassessment of the Earth's thermal and geochemical budgets and has revolutionized our understanding of biological processes. This review traces the development of the study of seafloor hydrothermal systems from the indirect evidence provided by conductive ...
Robert P. Lowell +2 more
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The Lassen hydrothermal system [PDF]
American Mineralogist, 2016 The active Lassen hydrothermal system includes a central vapor-dominated zone or zones beneath the Lassen highlands underlain by ~240 °C high-chloride waters that discharge at lower elevations. It is the best-exposed and largest hydrothermal system in the Cascade Range, discharging 41 ± 10 kg/s of steam (~115 MW) and 23 ± 2 kg/s of high-chloride waters
Steven E. Ingebritsen +3 more
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Hydrothermal systems on Europa [PDF]
Geophysical Research Letters, 2005 We estimate the global hydrothermal heat transport on Europa by considering the range of heat generation resulting from tidal stresses and radiogenic heat production within Europa's rocky sub‐ocean lithosphere. We show that if factors controlling tidally generated heat on Europa are similar to those on Io, global hydrothermal heat output and its high ...
Robert P. Lowell, Myesha DuBose
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Submarine Shallow-Water Fluid Emissions and Their Geomicrobiological Imprint: A Global Overview
Frontiers in Marine Science, 2021 Submarine fluids emissions in the form of geothermal vents are widespread in a variety of geological settings ranging from volcanic to tectonically active areas.
Giorgio Caramanna +2 more
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Field study of the ultra-acidic thermal springs "Blue Lakes" on Baransky volcano (Iturup Island, Southern Kuril Islands) in 2025 [PDF]
Геосистемы переходных зонPreliminary results of field surveys (July 2025) of the ultra-acid sulfate-chloride thermal springs of the " Blue Lakes" which discharge in the Kipyashchiy Stream valley on the slope of the active Baransky volcano (Iturup Island, Southern Kuril Islands)
Degterev, Artem V., Romanyuk, Fedor A.
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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.
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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
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Chemoautotrophy at Deep-Sea Vents: Past, Present, and Future [PDF]
Oceanography, 2012 Chemolithoautotrophic microorganisms are at the nexus of hydrothermal systems by effectively transferring the energy from the geothermal source to the higher trophic levels.
Stefan M. Sievert, Costantino Vetriani
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Sulfur Impurities: The Overlooked Process in Volcanic Hazard Assessment
GeosciencesOne of the most intriguing questions of modern volcanology is the inception of an eruption. Despite efforts to detect premonitory signals, numerous unpredicted eruptions have occurred recently. It has been suggested that these unpredicted eruptions might
Teresa Scolamacchia
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Geophysical Research Letters, 2018 Continental rifting is initiated by a dynamic interplay between tectonic stretching and mantle upwelling. Decompression melting assists continental breakup through lithospheric weakening and enforces upflow of melt to the Earth's surface.
Friedemann Samrock +3 more
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