The calcium isotope systematics of Mars

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F15%3A00000131" target="_blank" >RIV/00025798:_____/15:00000131 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/journal/0012821X" target="_blank" >http://www.sciencedirect.com/science/journal/0012821X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.epsl.2015.08.016" target="_blank" >10.1016/j.epsl.2015.08.016</a>

Result language
angličtina
Original language name
The calcium isotope systematics of Mars
Original language description
New Ca isotope data from a suite of Martian meteorites provide constraints on the Ca isotope composition of the Martian mantle and possible recycling of surface materials back into the mantle. A mean ?44/40Ca of 1.04 ? 0.09? (2SD) is estimated for the Martian mantle which can also be taken as an approximation for Bulk Silicate Mars. This value is identical with the estimates for Bulk Silicate Earth, and the inner Solar System planets can therefore be considered homogeneous with respect to Ca isotopes. The Ca isotope composition of two Martian dunites varies by ?0.3? despite strong chemical and mineralogical similarities and this difference can be caused by the presence of carbonate, probably of pre-terrestrial origin, implying a protracted period of the existence of CaCO3-rich fluids and sufficient amounts of CO2 on the surface of Mars. The variability of ?44/40Ca within the groups of shergottites and nakhlites (clinopyroxene cumulates) cannot be related to partial melting and fraction
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DD - Geochemistry
OECD FORD branch
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Project
<a href="/en/project/GA13-22351S" target="_blank" >GA13-22351S: Combined use of novel and traditional stable isotope systems in identifying source components and processes of moldavite formation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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