noun , Geology. plume ( def 10 ).Discover More Word History and Origins Origin of mantle plume1 First recorded in 1970–75 Discover More Example Sentences Seismic vibrations tend to move more slowly through hotter areas than cooler areas, for example, so a mantle plume would slow their progre...
Define mantled. mantled synonyms, mantled pronunciation, mantled translation, English dictionary definition of mantled. mantle cutaway of the earth n. 1. A loose sleeveless coat worn over outer garments; a cloak. 2. Something that covers, envelops, or co
Define mantlerock. mantlerock synonyms, mantlerock pronunciation, mantlerock translation, English dictionary definition of mantlerock. n. The layer of loose rock resting on bedrock, constituting the surface of most land. Also called mantle rock . America
Zhong, Y., Xie, L.-W., Xie, W.-L., 2022.An eclogitic component in the Pitcairn mantle plume: evidence from olivinecompositions and Fe isotopes of basalts. Geochimica et CosmochimicaActa, 318, 415-427. https://doi.org/10.1016/j.gca.2021.12.017. ...
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(1972). "Evidence for global synchronism in mantle plume convection, and possible significance for geology," Nature 240, 338-342. DOI: 10.1038/240338a0Vogt,P. R.Evidence for global synchronism in mantle plume convection, and possible significance for geology. Nature . 1972...
(Boehler, 1996;Fig. 1) and heat transfer across the CMB may be the driving force formantle convectionand plume initiation. Though substantial heat transport across the CMB is undisputed, elemental transfer or chemical exchange is highly debated. Before the actual topic of core-mantle interaction ...
the plume's viscosity would need to be of order ∼4.5×1020Pa-s for it to have an upward mass flux equivalent to ∼20km3/yr * 3300kgm−3. In this case, the average upwelling rate in a typical lowermantle plumewould be of order ∼10cm/yr, ∼25 times faster than the speed...
aThe mantle potential temperatures (TP) of mantle plume and ambient mantle estimated from thermometer24. Blue solid lines represent the thermal evolution of the mantle with different present-day Urey ratio (Ur(0), and blue dashed and dotted lines represent the switch from stagnant lid convection ...
One outburst of global volcanism about 66 million years ago, which created the vast flood basalt deposits known as the Deccan Traps on the Indian subcontinent (see plateau), may have been associated with a superplume, though this model is far from universally accepted....