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does the lower mantle correlate with the upper mantle? do ridges look like superplume boundaries?

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Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?

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Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?. STATISTICS ~100% of hotspots fall in LVAs of the upper mantle, mostly those associated with ridges, & in regions of extension. - PowerPoint PPT Presentation

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Page 1: Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?

Does the lower mantle correlate with the upper mantle?

Do ridges look like superplume boundaries?

Page 2: Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?
Page 3: Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?

Only ~3 hotspots are not near yellow/red. All LIPs backtrack to red.

STATISTICS ~100% of hotspots fall in LVAs of the upper mantle, mostly those associated with ridges, & in regions of extension


Constraining large-scale mantle heterogeneity using mantle

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Upper mantle structure beneath the eastern Pacific …gaherty/Publications_files/Gu2004JB003381.pdfUpper mantle structure beneath the eastern Pacific Ocean ridges ... we determine

Long-term interaction between mid-ocean ridges and mantle ... · Long-term interaction between mid-ocean ridges and mantle plumes Whittaker, J. M., Afonso, J. C., Masterton, S., Müller,

Geochemistry, Geophysics, Geosystems · a portion incorporated into arc-generated crust. Mantle N can be outgassed at mid-ocean ridges. Continen-tal crust N can be weathered and added

Shear Wave Splitting and Subcontinental Mantle Deformationgcc.asu.edu/advseismo/readings/1991_Journal of... · processes: seafloor spreading at the mid-ocean ridges, the differential

MID-OCEAN RIDGES: MANTLE CONVECTION AND FORMATION …€¦ · MID-OCEAN RIDGES: MANTLE CONVECTION AND FORMATION OF THE LITHOSPHERE G. Ito and R. A. Dunn, University of Hawai’i at

Superplume Project: Towards a new view of whole Earth dynamicslegacy.earlham.edu/~peakeda/Geo/Site5101i.pdf · Superplume Project: Towards a new view of whole Earth dynamics Mizuho

Dynamics of Mantle Plumes Methods for modeling basic thermal plumes (with and without tracers) Plumes interacting with plates (and ridges) Plumes in thermo-chemical

Mantle kinematics and formation of commarginal …...Remarks on sculpture with undulated type of increments In many bivalve species, wave phases of the ridges and furrows on a valve

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6. LATE-STAGE MELT EVOLUTION AND TRANSPORT IN THE SHALLOW MANTLE … · 2007-01-19 · LATE-STAGE MELT EVOLUTION AND TRANSPORT IN THE SHALLOW MANTLE ... ridges may be as much a function

MID-OCEAN RIDGES: MANTLE CONVECTION AND ...MID-OCEAN RIDGES: MANTLE CONVECTION AND FORMATION OF THE LITHOSPHERE 869 gabbroic lower oceanic crust and the peridotitic …

Mineralogic variability of the uppermost mantle along mid ... · taken a systematic study of the lateral mineralogi cal variability of abyssal peridotites along the world ocean ridges

Superplumes or plume clusters?3. Mantle plumes Before describing a superplume we should be clear about what we mean by a plume. We have yet to achieve an unambiguous detection of a

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to - Fitzroy Ridges

Waitoki Ridges Development Plan

Oceanic Island Basalts and Mantle Plumes: The Geochemical ... · mal upper mantle and that upwelling rates within the melting region are faster than beneath mid-ocean ridges. 186Os/188Os

Plate tectonics on the terrestrial planetsthienen/pdf/chap4.pdf · Plate tectonics is characterized by mid-ocean ridges, where oceanic crust and underlying depleted mantle is created

Fingerprints. Made of grooves and friction ridges. Fingerprint pattern is left by friction ridges. Ridges evolved for efficiency – they are useful in

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Imaging the mantle beneath Iceland using integrated …rallen/pub/2001iceman/Allen... · 2005. 4. 24. · North Atlantic. Also mantle plumes located off mid-ocean ridges continue

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Distribution of Epicenters and Fociitc.gsw.edu/faculty/bcarter/physgeol/eq/margins.pdf · The ridges stand higher than the surrounding seafloor because the mantle beneath them is

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Mid-Ocean Ridges: Mantle Convection and …...Plate tectonics describes the motion of the outer lithospheric shell of the Earth. It is the surface expression of mantle convection,

Mantle plume tomography - McGill Universitysappho.eps.mcgill.ca/~olivia/666/2006/Plumes/nolet06b.pdf · Key words: seismic tomography, mantle plumes, upper mantle, lower mantle 1

Supercontinent–superplume coupling, true polar wander and …ciei.colorado.edu/szhong/papers/Li_Zhong_PEPI_2009.pdf · Are mantle plumes and superplumes fixed relative to the Earth’s