搜索结果: 1-12 共查到“理学 Mid-Ocean Ridges”相关记录12条 . 查询时间(0.156 秒)
Geodynamic Models of Melt Generation and Extraction at Mid-Ocean Ridges
Geodynamic Models Melt Generation Extraction Mid-Ocean Ridges
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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
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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
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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
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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
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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...
Numerical model of crustal accretion and cooling rates of fast-spreading mid-ocean ridges
Numerical model crustal accretion cooling rates fast-spreading mid-ocean ridges
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2014/12/12
We designed a thermo-mechanical numerical model for fast-spreading mid-ocean ridge with variable viscosity, hydrothermal cooling, latent heat release, sheeted dyke layer, and variable melt intrusion p...
Hot mantle drives elevation, volcanism along mid-ocean ridges
Hot mantle drives elevation volcanism along mid-ocean ridges
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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...
Estimation of sulfur, fluorine, chlorine and bromine fluxes at Mid Ocean Ridges using a new experimental crushing and extraction method
degassing flux sulfur halogen helium Mid Ocean Ridge basalts
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2017/4/11
We measured helium-3 (3
He), sulfur (S), fluorine (F), chlorine (Cl) and bromine (Br) concentrations in vesicles of Mid
Ocean Ridge Basalts (MORBs) and Back-Arc Basin Basalts (BABBs). The aim of thi...
Monitoring and Observatories: Multidisciplinary, Time-Series Observations at Mid-Ocean Ridges
China shipping volcanoes geochemistry and biology hyperplasia of the earth's crust
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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
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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...
Mantle Melting Beneath Mid-Ocean Ridges
Plate tectonics the earth's surface the magma oceanic crust
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2015/7/22
The plate-tectonic revolution was initially "kinematic"—a description of plate motions across Earth's surface. Plate tectonics is now recognized as the surface manifestation of a greater process—circu...
Drilling the Crust at Mid-Ocean Ridges: An "In Depth" Perspective
Basalt sediments oceanic crust
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2015/7/22
In April 1961, 13.5 m of basalts were drilled off Guadalupe Island about 240 km west of Mexico's Baja California, together with a few hundred meters of Miocene sediments, in about 3500 m of water. Thi...