Evolution of thermal plumes in the Earth’s mantle
Thermal plumes in the Earths mantle are formed at the core/mantle or upper/lower mantle boundary as a result of gravity instability in the thermal boundary layer (TBL), which can exist at these boundaries. At the same time, recent seismic tomography studies of the Earths mantle [1] show clear eviden...
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| Veröffentlicht in: | Doklady earth sciences 2006-12, Vol.411 (2), p.1442-1444 |
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| container_title | Doklady earth sciences |
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| creator | Ismail-Zadeh, A. T. Korotkii, A. I. Krupsky, D. P. Tsepelev, I. A. Schubert, G. |
| description | Thermal plumes in the Earths mantle are formed at the core/mantle or upper/lower mantle boundary as a result of gravity instability in the thermal boundary layer (TBL), which can exist at these boundaries. At the same time, recent seismic tomography studies of the Earths mantle [1] show clear evidence for low velocity anomalies (associated with individual mantle plumes) extending down to mid-mantle depths. The origin of mantle plumes at these depths is problematic because no TBL feeding the plumes has thus far been observed in the mid-mantle. In the present paper, we propose that plumes formed at the core/mantle boundary lose their tails (vertical conduits for hot material) during the thermal evolution of plumes. |
| doi_str_mv | 10.1134/S1028334X06090248 |
| format | Article |
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| ispartof | Doklady earth sciences, 2006-12, Vol.411 (2), p.1442-1444 |
| issn | 1028-334X 1531-8354 |
| language | eng |
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| source | SpringerNature Journals |
| subjects | Boundary layer Boundary layers Earth Earth mantle Evolutionary biology Heated water Lower mantle Plumes Studies Thermal plumes Velocity |
| title | Evolution of thermal plumes in the Earth’s mantle |
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