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::A glance at today's paper::  

He, Yumei, Lianxing Wen, Yann Capdeville, Liang Zhao, Seismic evidence for an Iceland thermo-chemical plume in the Earth's lowermost mantle, Earth Planet.Sci. Lett., 417, 19-27, 2015.

Don L. Anderson

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Monte-Carlo simulations of metasomatic enrichment in the lithosphere and implications for the source of alkaline basalts

S. Pilet

Sébastien Pilet on The Origin of Alkaline Basalts (3.00)

Special Issue of Geochimica et Cosmochimica Acta

Magmas and their sources:
A tribute to Fred Frey

Call for papers

Don L. Anderson (1933–2014)

an obituary, by Adam M. Dziewonski

Large Igneous Provinces linked to supercontinent assembly

Yu Wang, M. Santosh, Zhaohua Luo & Jinhua Hao

The Jiaodong gold district, northeastern China: Late Paleozoic and Late Mesozoic LIPs, orogeny and metallogeny in Eurasia

H. de Boorder

AGU Session:

Theory of Earth

Conveners: Don Anderson, Gillian Foulger, Jay Bass & James Natland

Hotspot Swells Revisited

S.D. King & C. Adam

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What's a plume?

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:: Quote of the week ::

"Let us devote ourselves to pursuit of the ultimate truth about nature by studying what we can find around us. Of course we must respect and value existing theories, but it is important not to place too much confidence in them. We should be free from authority and convention and modest before Mother Nature.

We should investigate books and articles written by famed scholars. The most critical thing, however, is to observe nature with unbiased eyes, experiment with our own hands, honor fresh ideas gained from natural materials, and nurture them in a lively environment."

in Japanese

Matsumoto Tatsuro, quote from Issues of Japanese Historical Geology, 1949 mugs. To order, click here

:: Comments::

Dear WM, A new gravity map shows thousands more of seamounts, mostly not in linear chains, as summarized in this news article. The great majority of seamounts are scattered across the oceans in independent groups and individual volcanoes. They are not part of linear volcanic chains, and we should note that magmas of most seamount volcanoes appear to be similar and must form the same way. This fact does not support the wildly generalized models in which intraplate volcanoes are created by narrow, deep mantle plumes. Instead, we must develop models that link lithospheric structures to linear volcanic chains where such exist, and also allow most volcanoes to form as individual features, all in a common origin from the upper mantle.–Greg McHone
Dear WM, in the recent paper by Courtillot & Fluteau, the 59th plume type is defined–the "killer plume".–Michele Lustrino