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Diversity of Hydrothermal Systems on Slow Spreading Ocean Ridges
Slow Spreading Ocean Ridges Hydrothermal Systems
2015/7/16
The global mid-ocean ridge system spreads over a spectrum of rates, and oceanic crust formed at slow and ultra-slow spreading ridges (< 40 mm yr–1) differs from the more "ideal" layered structure form...
Geodynamic Models of Melt Generation and Extraction at Mid-Ocean Ridges
Geodynamic Models Melt Generation Extraction Mid-Ocean Ridges
2015/7/14
It is widely accepted that plate divergence at mid-ocean ridges drives mantle flow, mantle melting, and the formation of new oceanic crust. However, many of the details of this process remain obscure ...
Geodynamic Models of Melt Generation and Extraction at Mid-Ocean Ridges
Geodynamic Models Melt Generation Extraction Mid-Ocean Ridges
2015/7/14
It is widely accepted that plate divergence at mid-ocean ridges drives mantle flow, mantle melting, and the formation of new oceanic crust. However, many of the details of this process remain obscure ...
Active Long-Lived Faults Emerging Along Slow-Spreading Mid-Ocean Ridges
Long-Lived Faults Emerging Slow-Spreading Mid-Ocean Ridges
2015/7/14
In the classic mid-ocean ridge model, new seafloor is generated through a combination of magmatic diking feeding lava flows at the spreading axis, and the formation of short-offset, high-angle normal ...
The Prediction,Verification,and Significance of Flank Jets at Mid-Ocean Ridges
Prediction Verification Significance Flank Jets Mid-Ocean Ridges
2015/7/14
One aspect of ocean flow over mid-ocean ridges that has escaped much attention is the capacity of a ridge to convert oscillatory flows into unidirectional flows. Those unidirectional flows take the fo...
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...
Hot mantle drives elevation, volcanism along mid-ocean ridges
Hot mantle drives elevation volcanism along mid-ocean ridges
2014/4/16
By analyzing the speed of seismic waves generated by earthquakes, scientists have shown that temperature differences deep within Earth’s mantle control the elevation and volcanic activity along mid-o...
天津科技大学海洋地质学课件Section 4 RIDGES AND TRENCHES。
Patch behaviour and predictability properties of modelled finite-amplitude sand ridges on the inner shelf
Patch behaviour predictability properties modelled finite-amplitude sand ridges inner shelf
2009/11/2
The long-term evolution of shoreface-connected sand ridges is investigated with a nonlinear spectral model which governs the dynamics of waves, currents, sediment transport and the bed level on the in...
The reflection of water surface waves by long undersea ridges and valleys is studied on the basis of linear longwave theory and of refraction theory. If L is the wavelength and h the local water depth...
Long waves are affected by bottom topography and under certain conditions may be trapped along topographical contours which then act as wave guides transmitting wave energy for great distances with li...
Bottom-trapped Subinertial Motions over Midocean Ridges in a Stratified Rotating Fluid
Bottom-trapped Subinertial Motions Stratified Rotating Fluid Midocean Ridges
2008/12/17
Linear analytical solutions for bottom-trapped subinertial oscillatory flow over simple ridge topographies in a stratified (two-layer) rotating fluid are presented. Results are compared to moored curr...
Stratified Abyssal Flow in the Presence of Fractured Ridges
Stratified Abyssal Flow Fractured Ridges two-layer model
2008/12/15
A linear, two-layer model for abyssal flow driven by a specified upwelling into the thermocline is studied when the ocean basin is partially blocked by a meridional barrier in the lower layer. The bar...
Monitoring and Observatories: Multidisciplinary, Time-Series Observations at Mid-Ocean Ridges
China shipping volcanoes geochemistry and biology hyperplasia of the earth's crust
2015/7/22
Mid-ocean ridges represent one of the few environments where it is possible to directly and regularly observe the connectivity among tectonic, volcanic, geochemical, and biological processes. This int...
Ridge-Hotspot Interactions: What Mid-Ocean Ridges Tell Us About Deep Earth Processes
The earth heat engine thermal transfer heat material buoyancy
2015/7/22
Earth is a thermal engine that dissipates its internal heat primarily through convection. The buoyant rise of hot material transports heat to the surface from the deep interior while colder material s...