Manfred J. van Bergen

TL;DR: In this article, the Pb isotopes are decoupled from Sr and Nd isotopes, with the frontal volcano showing the higher Nd and Pb and lower Sr isotopic ratios.

TL;DR: In this article, the authors document silicon isotope systematics in cherts from 3.5-3.0 Ga units in the Pilbara Craton (Western Australia) as evidence of their formation by several distinct processes in Early Archean near-surface environments.

TL;DR: In this paper, the role of clinopyroxene-rich xenoliths (which also contain apatite, Fe-Ti-oxide and amphibole) in the genesis of the Leucite Hills magmas cannot be elucidated on the basis of available data, but it is unlikely that they represent the source material from which these magmas are derived.

TL;DR: In this paper, the authors performed seeded silica precipitation experiments using flow-through reactors in the 10-60. °C temperature range to quantify the silicon isotope fractionations during controlled precipitation of amorphous silica from a flowing aqueous solution.

TL;DR: In this article, the effects of various gas mixtures on the transfer of sulfur ions through the hexapole and the breakdown of interfering ions at m/z=32 and m/Z=34 were investigated.