Topic
Incompatible element
About: Incompatible element is a research topic. Over the lifetime, 2420 publications have been published within this topic receiving 154052 citations.
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TL;DR: Shoshonitic lavas from the Tavua volcano on the island of Viti Levu, Fiji, display a range of compositions from mafic absarokite through shoshonite to evolved banakite as mentioned in this paper.
64 citations
TL;DR: In this paper, the authors proposed geotectonic settings for the Pechenga area, including an intracratonic rift zone, a passive continental margin, an oceanic island arc, a mature continental volcanic arc, and a collisional suture zone.
63 citations
TL;DR: In this article, secondary ionization mass spectrometer (SIMS) analysis of these incompatible elements in pyroxenes of two nakhlites and two basaltic shergottites, with quite different results.
63 citations
TL;DR: In this article, trace element compositions of submicroscopic inclusions in both the core and the coat of five coated diamonds from the Democratic Republic of Congo (DRC, formerly Zaire) have been analyzed by Laser Ablation Inductively Coupled Mass Plasma Spectrometry (LA-ICP-MS).
63 citations
TL;DR: In this paper, the europium anomaly in mare sources is inferred to be present at 400 km depth, too deep to have been directly influenced by plagioclase crystallization.
Abstract: Global overturn of a hot, gravitationally unstable lunar mantle immediately following the solidification of a magma ocean explains several characteristics of lunar petrology. Lunar mare basalt sources are inferred to be depleted in europium and alumina. These depletions are consensually attributed to complementary plagioclase floating from a magma ocean. However, in contrast to the mare basalt source parent magma, the ferroan anorthosite parent magma was more evolved by virtue of its lower Mg/Fe ratio and Ni abundances, although less evolved in its poverty of clinopyroxene constituents, flat rare earth pattern, and lower incompatible element abundances. The europium anomaly in mare sources is inferred to be present at 400 km depth, too deep to have been directly influenced by plagioclase crystallization. Massive overturning of the post-magma ocean mantle would have carried down clinopyroxene, ilmenite, and phases containing fractionated rare earths, europium anomalies, and some heat-producing radionuclides.
63 citations