Results 91 to 100 of about 32,324 (258)

A Vent-Field-Scale Model of the East Pacific Rise 9°50'N Magma-Hydrothermal System [PDF]

open access: yesOceanography, 2012
This paper describes a two-limb single-pass modeling approach constrained by vent temperature, heat flow, vent geochemistry, active-source seismology, and seismically inferred circulation geometry to provide first-order constraints on crustal ...
Robert P. Lowell   +4 more
doaj  

Tracer Applications of Noble Gas Radionuclides in the Geosciences

open access: yes, 2013
The noble gas radionuclides, including 81Kr (half-life = 229,000 yr), 85Kr (11 yr), and 39Ar (269 yr), possess nearly ideal chemical and physical properties for studies of earth and environmental processes.
Fischer, T. P.   +10 more
core   +3 more sources

Magmatic and hydrothermal behavior of uranium in syntectonic leucogranites: The uranium mineralization associated with the Hercynian Guérande granite (Armorican Massif, France) [PDF]

open access: yes, 2017
Most of the hydrothermal uranium (U) deposits from the European Hercynian belt (EHB) are spatially associated with Carboniferous peraluminous leucogranites.
Ballouard, C.   +10 more
core   +3 more sources

Nanomaterial‐Mediated Near‐Infrared Photothermal Neuromodulation for Neurologic Disorders

open access: yesAdvanced NanoBiomed Research, EarlyView.
This review summarizes how near‐infrared light activates photothermal nanomaterials to enable noninvasive neuromodulation with high spatiotemporal precision. It elucidates the underlying mechanisms, explores targeted therapeutic applications for neurological disorders, discusses integration with optogenetics and biosensors, and addresses future ...
Ting‐Ting Zeng   +9 more
wiley   +1 more source

Gas plumes and near-seafloor bottom current speeds of the southernmost Okinawa Trough determined from echo sounders

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2019
Using echo sounders to detect gas plumes in seawater is common, especially in the context of hydrothermal circulation areas or gas hydrate-bearing cold seeps.
Ching-Hui Tsai   +7 more
doaj   +1 more source

Sustaining Hydrothermal Circulation With Gravity Relevant to Ocean Worlds

open access: yesJournal of Geophysical Research: Planets
AbstractSome ocean worlds may sustain active, seafloor hydrothermal systems, but the characteristics and controls on fluid‐heat transport in these systems are not well understood. We developed three‐dimensional numerical simulations, using a ridge‐flank hydrothermal system on Earth as a reference, to test the influence of ocean world gravity on fluid ...
Fisher, A.   +5 more
openaire   +3 more sources

Plate motions recorded in tectonostratigraphic terranes of the Franciscan Complex and evolution of the Mendocino triple junction, northwestern California [PDF]

open access: yes, 1994
The Mendocino triple junction area of northern California is underlain by the Coastal belt of the Franciscan complex, flanked on the east by the Central and Eastern belts of the Franciscan Complex.
Frederiksen, NO   +4 more
core   +1 more source

Structural and hydrogeological features of a Lias carbonate aquifer in the Triffa Plain, NE Morocco [PDF]

open access: yes, 2012
The rising demand for water and the contamination of shallow water table aquifers has led authorities in NE Morocco to look for deeper groundwater resources in the Triffa Plain, namely in Lower Jurassic (Lias) dolomitic limestones. The liassic aquifer is
Barkaoui, Alae Eddine   +7 more
core   +1 more source

Technobiological Pathways for High‐CO₂ Capture Using Micro‐/Macroalgae: Genetic Engineering, Process Automation, and Value‐Added Bioproducts

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley   +1 more source

Hydrothermal fluids circulation and travertine deposition in an active

open access: yes, 2016
Coexistence of thermal springs, travertine deposits and tectonic activity is a recurring feature for most geothermal areas. Although such a certainty, their relationships are debated mainly addressing on the role of the tectonic activity in triggering and controlling fluids flow and travertine deposition.
Brogi, A   +14 more
openaire   +3 more sources

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