Results 171 to 180 of about 16,936 (226)

The importance of past rifting in large igneous province development. [PDF]

Nature
Kounoudis R, Bastow ID, Ebinger CJ, Goes S, Zhou P, Musila M, Ogden CS, Ayele A.   +7 more
europepmc   +1 more source

Synchronous motion of the Easter mantle plume and the East Pacific Rise. [PDF]

Nat Commun
O'Connor JM, Regelous M, Haase KM, Hemond C, Koppers AAP, Miggins DP, Heaton DE.   +6 more
europepmc   +1 more source

Characterization of the HIMU Mantle Source from Noble Gas Isotopes in Volcanic Gas Emissions in São Tomé (Cameroon Volcanic Line). [PDF]

ACS Earth Space Chem
Lastes A, Bekaert DV, Tibari B, Seltzer AM, Broadley MW, Barry PH, Marty B.   +6 more
europepmc   +1 more source

Growth of continental crust and subduction of lithosphere in the Hadean revealed by geochemistry and geodynamics.

Vezinet A, Chugunov A, Sobolev A, Jain C, Sobolev S, Asafov E, Batanova V, Arndt N, Danyushevsky L, Valley J, Koshlykova A.   +10 more
europepmc   +1 more source

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Mantle Plumes and Continental Tectonics

Science, 1992
Mantle plumes and plate tectonics, the result of two distinct modes of convection within the Earth, operate largely independently. Although plumes are secondary in terms of heat transport, they have probably played an important role in continental geology.
R I, Hill, I H, Campbell, G F, Davies, R W, Griffiths   +3 more
openaire   +4 more sources

Mantle plume tomography

Chemical Geology, 2007
We review the resolution currently available with seismic tomography, in particular the ability of seismic waves to image mantle plumes, and discuss frequently asked questions about artifacts, interpretation and possible systematic errors. These aspects are discussed in more detail for two case histories offering different problems in the tomographic ...
Guust Nolet, Richard Allen, Dapeng Zhao
openaire   +1 more source

Mantle Amphiboles and Mantle Plumes

Mineralogical Magazine, 1998
Metasomatic minerals such as clinopyroxene, amphibole, phlogopite or apatite found in many mantle xenoliths provide evidence for fluid migration through mantle rocks and reaction with mantle minerals. The chemical composition of these minerals give us insight into the nature and composition of the percolating fluids, the processes of fluid-melt ...
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Mantle plumes persevere

Nature Geoscience, 2011
The ocean floor is littered with hundreds of thousands of mostly extinct volcanoes. The origin of at least some of these seamounts seems to rest with mantle plumes.
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Mantle plumes and geochemistry

Chemical Geology, 2007
Abstract There is considerable interest in the extent to which mantle plumes exist, how many there may be, and how best they can be recognized. It has proved unexpectedly difficult to image them consistently from seismology, and it has been suggested that they may be recognized from the geochemistry of rocks erupted at the Earth's surface.
Chris Hawkesworth, Anders Scherstén
openaire   +1 more source

Iceland Mantle Plume

Nature, 1973
O'HARA1 has objected to my interpretation concerning the trace element chemistry of lavas erupted along the Iceland-Reykjanes Ridge System2 on the ground that: (1) Such magmas are not “primary magmas” but residual liquids; (2) instead, such lavas have suffered prior to eruption extensive “gabbro fractionation” at low pressure (olivine-augite ...
openaire   +1 more source