A
Astrid Holzheid
Researcher at University of Kiel
Publications - 64
Citations - 2571
Astrid Holzheid is an academic researcher from University of Kiel. The author has contributed to research in topics: Silicate & Mantle (geology). The author has an hindex of 21, co-authored 59 publications receiving 2340 citations. Previous affiliations of Astrid Holzheid include Max Planck Society & University of Washington.
Papers
More filters
Journal ArticleDOI
Heterogeneous accretion, composition and core–mantle differentiation of the Earth
David C. Rubie,Daniel J. Frost,Ute Mann,Yuki Asahara,Francis Nimmo,Kyusei Tsuno,Philip Kegler,Astrid Holzheid,Herbert Palme +8 more
TL;DR: In this paper, a model of core formation is presented that involves the Earth accreting heterogeneously through a series of impacts with smaller differentiated bodies, each collision results in the impactor's metallic core reacting with a magma ocean before merging with the Earth's proto-core.
Journal ArticleDOI
Fractionation of the platinum-group elements during mantle melting.
TL;DR: Experiments in sulfide-silicate systems demonstrate that two sulfide phases are stable in the asthenospheric upper mantle: a crystalline osmium-iridiumruthenium-enriched monosulfide and a rhodium-platinum-palladium–enriched sulfide melt.
Journal ArticleDOI
Geochemical evidence for magmatic water within Mars from pyroxenes in the Shergotty meteorite
Harry Y. McSween,Timothy L. Grove,R. C. F. Lentz,J. C. Dann,Astrid Holzheid,Lee R. Riciputi,Jeffrey G. Ryan +6 more
TL;DR: It is concluded that ascending magmas possibly delivered significant quantities of water to the martian surface in recent times, reconciling geologic and petrologic constraints on the outgassing history of Mars.
Journal ArticleDOI
Sulfur saturation limits in silicate melts and their implications for core formation scenarios for terrestrial planets
Astrid Holzheid,Timothy L. Grove +1 more
TL;DR: In this article, the authors explored the effect of temperature, pressure, and silicate melt composition on S solubility in silicate liquids and used the model of Mavrogenes and O'Neill (1999) to expand the model by incorporating the influence of the silicate melts structure.
Journal ArticleDOI
The activities of NiO, CoO and FeO in silicate melts
TL;DR: In this article, the authors show that Fe, Ni and Co are dissolved as divalent cations in silicate melts at oxygen fugacities varying from IW + 1.5 to IW − 3.33.