terrestrial heat/ mantle plume geometriescentreline temperatureincompressible flowconvection cellsfinite element numerical simulationssteady state convection2D domainsCartesian boxWe investigate the temperature at the center of the vertically rising and sinking limbs of convection cells as a function of geometry...
The thermochemical structure of lithospheric and asthenospheric mantle exert primary controls on surface topography and volcanic activity. Volcanic rock compositions and mantle seismic velocities provide indirect observations of this structure. Here, we compile and analyze a global database of the distribut...
The uniquely high-temperature character of Cullinan diamonds: A signature of the Bushveld mantle plume? Lithos Volumes 304–307, April 2018, Pages 362-373 Purchase options CorporateFor R&D professionals working in corporate organizations. Academic and personalFor academic or personal use only. Looking ...
7.06.6.1 The Present-Day Mantle Geotherm The potential temperature of shallow oceanic mantle may be calculated from the composition of MORBs which have not been affected by fractional crystallization, and also from heat flux and bathymetry data, as explained earlier. Such independent determinations are...
Mantle plumes migrate through the lithospheric mantle, resulting in compositional changes. The plume could be a source of water that would facilitate mineral transformations and metasomatism of a mantle peridotite. The thermal anomaly is unlikely for hotspot with ages approximately >75 Myr (Chu et al...
The uniquely high-temperature character of Cullinan diamonds: A signature of the Bushveld mantle plume? 来自 国家科技图书文献中心 喜欢 0 阅读量: 23 作者:Korolev,N.,M.,Kopylova,M.,Bussweiler,Y.,Pearson,D.,G. 摘要: The mantle beneath the Cullinan kimberlite (former ...
Element ratios of MORBs reveal that the mantle source of the MORBs along the MAR is highly heterogeneous. We suggest that most of source heterogeneities of the MORBs may be due to the presence of subducted slab and delaminated lower crust in the source. In addition, the plume that carried...
F. Rethinking the emplacement and evolution of zoned plutons: geochronologic evidence for incremental assembly of the Tuolumne Intrusive Suite. Calif. Geol. 32, 433–436 (2004). Article Google Scholar Huang, H.-H. et al. The Yellowstone magmatic system from the mantle plume to the upper ...
athe region of North C hina has entered into the stage of intensive multi-episode evolu- tion of mantle plume. The deep-level processes of the mantle detachment, plus the overlapping-cutting between the Shangyi-Chicheng ductile shear zone and the Wu-longgou-Shanghuangqi ductile zone, 北部C hin...
This magmatic event, combined with the thermal influence of the Tristo da Cunha mantle plume and rift spreading, likely raised the basement geotherm during the Late Cretaceous. Models suggest a slight increase in temperatures of the UYS from Late Cretaceous until the Oligocene, when a final ...