EarthRef.org Reference Database (ERR) -- Foulger & Natland 2003

EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information

Foulger & Natland 2003

Foulger, G.R. and Natland, J.H. (2003). Is 'hotspot' volcanism a consequence of plate tectonics?. Science 300(5621): 921-922.

The origin of mantle hotspots is a controversial topic. Only seven ('primary') out of 49 hotspots meet criteria aimed at detecting a very deep origin (three in the Pacific, four in the Indo-Atlantic hemisphere). In each hemisphere these move slowly, whereas there has been up to 50 mm/a motion between the two hemispheres prior to 50 Ma ago. This correlates with latitudinal shifts in the Hawaiian and Reunion hotspots, and with a change in true polar wander. We propose that hotspots may come from distinct mantle boundary layers, and that the primary ones trace shifts in quadrupolar convection in the lower mantle. (C) 2002 Elsevier Science B.V. All rights reserved.

BACKGROUND DATA FILES

	Abstract
	Abstract

Keywords
mantle, convection, iceland

Journal
Science
http://www.sciencemag.org/

Publisher
American Association for the Advancement of Science
1200 New York Avenue NW
Washington, DC 20005
1-202-326-6540
1-202-682-0816
webmaster@aaas.org