Thallium isotopic evidence for ferromanganese sediments in the mantle source of Hawaiian basalts

• Published in: Nature Vol. 439; no. 7074; pp. 314 - 317
• Main Authors: Nielsen, Sune G., Rehkämper, Mark, Norman, Marc D., Halliday, Alex N., Harrison, Darrell
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 19.01.2006; Nature Publishing; Nature Publishing Group
• Subjects: Basalt; Crystalline rocks; Earth sciences; Earth, ocean, space; Exact sciences and technology; Geology; Humanities and Social Sciences; Igneous and metamorphic rocks petrology, volcanic processes, magmas; Islands; Isotope geochemistry; Isotope geochemistry. Geochronology; Lava; letter; multidisciplinary; Osmium; Plumes; Rocks; Science; Science (multidisciplinary); Sediments; Thallium; Hawaii; Polynesia; United States > US; ISE, USA, Hawaii, Hawaii I; ISE, USA, Hawaii; subducted sediments; ocean-island basalts; petrogenesis; cesium; plumes; volcanic rocks; osmium; igneous rocks; anomalies; Oceania; thallium; ferromanganese composition; chemical ratios; basalts; isotopes; mantle origin; hot spots; Os-187/Os-186; picrite; marine sediments

Ocean island basalts are generally thought to be the surface expression of mantle plumes, but the nature of the components in the source regions of such mantle plumes is a subject of long-standing debate. The lavas erupted at Hawaii have attracted particular attention, as it has been proposed that c...