| 单词 | asthenosphere |
| 例句 | To say that the lithosphere floats on top of the asthenosphere suggests a degree of easy buoyancy that isn’t quite right. A Short History of Nearly Everything 2003-05-06T00:00:00Z So all that can be said is that at some slightly indeterminate point as we head toward the center of Earth we leave the asthenosphere and plunge into pure mantle. A Short History of Nearly Everything 2003-05-06T00:00:00Z These observations suggest that the oceanic asthenosphere must contain water. Exploring the effect of water on seismic wave attenuation in the upper mantle 2023-09-27T04:00:00Z This region of the mantle is known as the low-velocity zone because seismic waves are slowed within rock that is near its melting point, and of course it is also known as the asthenosphere. Physical Geology 2015-01-01T00:00:00Z Isostasy describes the equilibrium that exists for the earth’s lithosphere, where denser lithosphere “sinks” lower on top of the asthenosphere and less dense lithosphere “floats” higher on the asthenosphere. An Introduction to Geology 2017-01-01T00:00:00Z Roughly 90 percent of quakes on Earth are produced by the movement of tectonic plates, massive slabs of the planet’s lithosphere that slide around atop the semisolid asthenosphere layer and occasionally bump into one another. Largest Marsquake Ever Recorded May Be InSight’s Swan Song 2022-05-24T04:00:00Z The boundary between the lithosphere and asthenosphere is associated with a platewide high–seismic velocity “lid” overlying lowered velocities, consistent with thermal models. [Report] Changes in Seismic Anisotropy Shed Light on the Nature of the Gutenberg Discontinuity 2014-03-13T18:25:59.932Z This difference in water content between the two layers constituting the LAB can explain the sharp velocity drops as well as the near constant attenuation observed over a wide frequency range in the asthenosphere. Exploring the effect of water on seismic wave attenuation in the upper mantle 2023-09-27T04:00:00Z Rowley's team uncovered subtle mantle movements under eastern North America by including in their model a layer of relatively soupy rock, just beneath Earth's rigid outer shell, called the asthenosphere. Atlantic Coast Warping Like a 'Magic Carpet' 2013-05-16T19:20:00Z Isostatic rebound is when some weight is removed from the continental lithosphere causing it to “float” higher on the asthenosphere. An Introduction to Geology 2017-01-01T00:00:00Z The presence of a low-viscosity layer at the base of the lithosphere leads to the channelization of the flow in the asthenosphere, which affects the lithospheric thermal structure, all over the plate. [Technical Response] Response to Comment on ?Mantle Flow Drives the Subsidence of Oceanic Plates? 2011-02-24T19:25:55.057Z Rheological differences between Earth's lithosphere and asthenosphere help drive plate tectonics. [Report] Changes in Seismic Anisotropy Shed Light on the Nature of the Gutenberg Discontinuity 2014-03-13T18:25:59.932Z "The presence of water in the asthenosphere can provide important insights into volcanic and seismic activities, thus facilitating their prediction and detection," he speculates. Exploring the effect of water on seismic wave attenuation in the upper mantle 2023-09-27T04:00:00Z A model that doesn't consider the asthenosphere would show the Orangeburg Scarp sinking. Atlantic Coast Warping Like a 'Magic Carpet' 2013-05-16T19:20:00Z Strong convection currents cause the solid asthenosphere to slowly flow beneath the lithosphere. An Introduction to Geology 2017-01-01T00:00:00Z However, they are ignored by these authors, who precisely claim their importance for understanding the lithosphere/asthenosphere interaction. [Technical Response] Response to Comment on ?Mantle Flow Drives the Subsidence of Oceanic Plates? 2011-02-24T19:25:55.057Z Decompression melting in the rift zone changes asthenosphere material into the new lithosphere, which oozes up through cracks in the oceanic plate. An Introduction to Geology 2017-01-01T00:00:00Z This layer appears to glide over a weaker region below called the asthenosphere, characterized by high seismic attenuation and low shear wave velocity. Exploring the effect of water on seismic wave attenuation in the upper mantle 2023-09-27T04:00:00Z The ridge feature is created by the accumulation of hot lithosphere material, which is lighter than the dense underlying asthenosphere. An Introduction to Geology 2017-01-01T00:00:00Z Physical layers include the lithosphere and asthenosphere; chemical layers are crust, mantle, and core. An Introduction to Geology 2017-01-01T00:00:00Z The heat flux Q at the base of the lithosphere is imposed by the flow within the asthenosphere. [Technical Response] Response to Comment on ?Mantle Flow Drives the Subsidence of Oceanic Plates? 2011-02-24T19:25:55.057Z This chunk of isostatically buoyant lithosphere sits partially submerged and partially exposed to the asthenosphere, like an ice cube floating in a glass of water. An Introduction to Geology 2017-01-01T00:00:00Z The exact reasons behind these distinct properties and how they enable the lithosphere to move over the asthenosphere are not clearly understood. Exploring the effect of water on seismic wave attenuation in the upper mantle 2023-09-27T04:00:00Z The oceanic lithospheric plates on either side of the Atlantic Ocean for example, are denser than the underlying asthenosphere and are not subducting beneath the continental plates. An Introduction to Geology 2017-01-01T00:00:00Z Physical layers include the lithosphere and asthenosphere; chemical layers are crust, mantle, and core. An Introduction to Geology 2017-01-01T00:00:00Z Tectonic plates float, collide, slide past each other, and split apart on an underlying mobile layer called the asthenosphere. An Introduction to Geology 2017-01-01T00:00:00Z Physical layers include lithosphere and asthenosphere; chemical layers are crust, mantle, and core. An Introduction to Geology 2017-01-01T00:00:00Z "We experimentally determined the seismic wave attenuation characteristics, parameters for ascertaining the softness of the lithosphere and asthenosphere, under high temperature and pressure using our short-period oscillation generation technology," explains Prof. Yoshino. Exploring the effect of water on seismic wave attenuation in the upper mantle 2023-09-27T04:00:00Z This caused magmatism as the subducting slab sank, allowing asthenosphere material to rise around it. An Introduction to Geology 2017-01-01T00:00:00Z The asthenosphere is the layer below the lithosphere. An Introduction to Geology 2017-01-01T00:00:00Z Unlike the lithosphere that consists of multiple plates, the asthenosphere is relatively unbroken. An Introduction to Geology 2017-01-01T00:00:00Z The mesosphere, sometimes known as the lower mantle, is more rigid and immobile than the asthenosphere. An Introduction to Geology 2017-01-01T00:00:00Z Continental lithosphere is of lower density and thus more buoyant than the underlying asthenosphere. An Introduction to Geology 2017-01-01T00:00:00Z Oceanic lithosphere is denser than continental lithosphere, and, when old and cold, may even be denser than asthenosphere. An Introduction to Geology 2017-01-01T00:00:00Z Astheno- means lacking strength, and the most distinctive property of the asthenosphere is movement. An Introduction to Geology 2017-01-01T00:00:00Z |
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