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[PDF] Top 20 From Source to Surface: The dynamics of heterogeneous mantle plumes

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From Source to Surface: The dynamics of heterogeneous mantle plumes

From Source to Surface: The dynamics of heterogeneous mantle plumes

... Acknowledgements When I first started this project my supervisor, Rhodri Davies, told me the next three and a half years would be the best and worst time of my life. He was almost right. It took me four and half years. ... See full document

103

Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups

Intercomparison of Three Open-Source Numerical Flumes for the Surface Dynamics of Steep Focused Wave Groups

... spectrum from the AM location, where the wave group is dispersed, until the PF, where the strongest wave-wave interactions occur as the wave group takes its steepest ...freely from the AM to PF location ... See full document

28

I. Multi-scale dynamics of mantle plumes and II. Compressible thermo-chemical convection and the stability of mantle superplumes

I. Multi-scale dynamics of mantle plumes and II. Compressible thermo-chemical convection and the stability of mantle superplumes

... Numerical mantle convection models indicate that subducting slabs can reach the core- mantle boundary (CMB) for a wide range of assumed material properties and plate tectonic ...lower mantle ... See full document

192

Heterogeneous crust and upper mantle across southern Kenya and the relationship to surface deformation as inferred from magnetoteluric imaging

Heterogeneous crust and upper mantle across southern Kenya and the relationship to surface deformation as inferred from magnetoteluric imaging

... upper mantle in southern Kenya using 2-D magnetotelluric data ...results from collocated surveys show that the models are robust and also provide new ...zoning from west to east in our study ... See full document

19

Fine Sediment Dynamics in Dredge Plumes

Fine Sediment Dynamics in Dredge Plumes

... Deployment of the PICS within dredge plumes has yielded the first quantitative data to determine initial aggregation states and settling velocities of sediment suspended by dredging o[r] ... See full document

131

The seismic signature of Upper‐Mantle Plumes: application to the Northern East African Rift

The seismic signature of Upper‐Mantle Plumes: application to the Northern East African Rift

... Figure 6. Horizontal slices and vertical cross-sections through the P-wave model N8 with a 200 ◦ C hot layer, focused below Afar. The orientation of the cross-sections (black line) is shown in each 200 km depth slice. ... See full document

36

The composition of melts from a heterogeneous mantle and the origin of Ferropicrite: application of a thermodynamic model

The composition of melts from a heterogeneous mantle and the origin of Ferropicrite: application of a thermodynamic model

... between mantle composition and melting ...to source composition. Linearly varying the source composition between peridotite and basaltic pyroxenite, we find that the concentration of oxides in the ... See full document

23

A primitive mantle source for the Neoarchean mafic rocks from the Tanzania Craton

A primitive mantle source for the Neoarchean mafic rocks from the Tanzania Craton

... the Lake Victoria region of the Tanzania Craton will need to be revisited as more geochronological and geochemical data becomes available. The Kiziba Formation metabasalts are the oldest rocks recog- nized so far in the ... See full document

16

Broadband modeling of earthquake source and mantle structures

Broadband modeling of earthquake source and mantle structures

... waveforms from the above tomographic models and compare them directly with observations to evaluate their ...transition from the Great Plains to the rift zone where we expect the largest velocity constrast ... See full document

147

Dynamics of the plumes produced by ultrafast laser ablation of metals

Dynamics of the plumes produced by ultrafast laser ablation of metals

... ejected plumes in the far-field, for times of few microseconds or more and distances from millimeters to centimeters from the target surface, to those near the target at the early stages of ... See full document

13

From ocean to mantle: new evidence for U cycling with implications for the HIMU source and the secular Pb isotope evolution of Earth's mantle

From ocean to mantle: new evidence for U cycling with implications for the HIMU source and the secular Pb isotope evolution of Earth's mantle

... Henry's law trace element distribution mass balance calculations simulate the compositional evolution with progressive subduction. Aqueous fl uid release at subarc depths of ca. 120 km (4 GPa / 800 °C; P-T estimates taken ... See full document

11

Surface wave studies of the Australian upper mantle

Surface wave studies of the Australian upper mantle

... obtained from studies of circumferential traverses and free ...seismograms from an additional 100 events were obtained from the Seismological Data Center, Washington, ...published surface wave ... See full document

185

The role of mantle plumes in the development of continental-scale drainage patterns: the southern African example revisited

The role of mantle plumes in the development of continental-scale drainage patterns: the southern African example revisited

... Mantle plumes that precede continental break-up have been postulated to exert a major influence on continental drainage ...away from the centre of the plumes, while failed arms of the ... See full document

8

The dynamics of plate boundaries over a convecting mantle

The dynamics of plate boundaries over a convecting mantle

... The threshold forces that are found for the bimodal distributions of V t and U P S amount to 2 × 10 12 N m −1 to 2.5 × 10 12 N m −1 , respectively. In both cases, I interpret this threshold as the tensional force 285 due ... See full document

23

Continuous eclogite melting and variable refertilisation in upwelling heterogeneous mantle

Continuous eclogite melting and variable refertilisation in upwelling heterogeneous mantle

... Methods Res2 starting composition was prepared as glassed synthetic sintered oxide powders using established procedures 13 , and doped with a trace-element blend of 10 elements (La, Ce, Sm, Gd, Yb, Sc, Y, Zr, Sr, Cu) at ... See full document

6

Rayleigh wave tomography in the North Atlantic: high resolution images of the Iceland, Azores and Eifel mantle plumes

Rayleigh wave tomography in the North Atlantic: high resolution images of the Iceland, Azores and Eifel mantle plumes

... The anomaly associated with the Azores is 4% to 7% slow with respect to PREM at 75–150 km depth and extends from about 258N to 458N along the ridge axis. Compared to the anomaly associated with Iceland, the Azores ... See full document

22

Treml, Markus
  

(2006):


	The Seismic Signature of Mantle Plumes.


Dissertation, LMU München: Fakultät für Geowissenschaften

Treml, Markus (2006): The Seismic Signature of Mantle Plumes. Dissertation, LMU München: Fakultät für Geowissenschaften

... rising from the deep mantle (Montelli et ...far from the physical reality where rays have a given thickness depending on the frequency content of the propagated ... See full document

183

Title: Thermo-Chemical Dynamics in Earth s Core Arising from Interactions with the Mantle.

Title: Thermo-Chemical Dynamics in Earth s Core Arising from Interactions with the Mantle.

... α c i – 1.1 0.87 R c − R m (eV/f.u.) – -2.5 Table 2: Core material properties for pure iron and three Fe-O-Si mixtures denoted by their molar concentrations in the header line. Superscripts c have been suppressed for ... See full document

Multi Scale Dynamics and Rheology of Mantle Convection with Plates

Multi Scale Dynamics and Rheology of Mantle Convection with Plates

... of mantle convection with plates, incorporating a composite rheology with ...rates from seismic moment re- lease provide important constraints on these rheological ...domain, from lower mantle ... See full document

202

Multi-scale dynamics and rheology of mantle flow with plates

Multi-scale dynamics and rheology of mantle flow with plates

... Columns: sy: yield stress in MPa; n: stress exponent; w: lower mantle tomography scaling between S-wave speeds and temperature; |vp|: plate speeds; a: plate velocity angles; P1 and P2: p[r] ... See full document

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