Results 151 to 160 of about 1,684 (203)

Origin of continental crust on early Earth. [PDF]

Natl Sci Rev
Zheng YF.
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Plume-induced emissions of deep methane linked to the end-Guadalupian mass extinction. [PDF]

Nat Commun
Liu SA, Xiong Z, Wu T, Zhao M.
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Mantle Plumes and Their Interactions

2022
Hotspots are regions of intraplate volcanism or especially strong volcanism along plateboundaries, and many of them are likely caused by underlying mantle plumes – localizedhot upwellings from deep inside the Earth. It is still uncertain, whether all plumes or justsome of them rise from the lowermost mantle, and to what extent and where theyentrain ...
Steinberger, B., Steinberger, A.
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MANTLE PLUMES AND HOT SPOTS

2005
Verlag. McElhinny MW (1973) Paleomagnetization and Plate Tectonics. Cambridge: Cambridge University Press. McElhinny MWand McFadden PL (2000) Paleomagnetization: Continents and Oceans. San Diego: Academic Press. Opdyke ND and Channell JET (1996) Magnetic Stratigraphy. San Diego: Academic Press. Tarling DH (1983) Paleomagnetization.
Suetsugu, D., Steinberger, B., Kogiso, T.   +2 more
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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
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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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Looking for mantle plumes

Physics Today, 2011
Seismic images of Earth’s interior offer evidence that hot columns of buoyant rock from deep in the mantle are the source of the volcanism at Yellowstone and similar hot spots. Yet mysteries remain.
Eugene Humphreys, Brandon Schmandt
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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
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The elusive mantle plume

Earth and Planetary Science Letters, 2003
Abstract Mantle plumes are hypothetical hot, narrow mantle upwellings that are often invoked to explain hotspot volcanism with unusual geophysical and geochemical characteristics. The mantle plume is a well-established geological structure in computer modeling and laboratory experiments but an undisputed seismic detection of one has yet to be made ...
Jeroen Ritsema, Richard M. Allen
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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 ...
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