Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034

@article{Agee2013UniqueMF,
  title={Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034},
  author={Carl B. Agee and N. V. Wilson and Francis M. McCubbin and Karen Ziegler and Victor J Polyak and Zachary Sharp and Yemane Asmerom and Morgan H. Nunn and Robina Shaheen and Mark H. Thiemens and Andrew Steele and Marilyn L. Fogel and Roxane Bowden and Mihaela Glamoclija and Zhisheng Zhang and Stephen M. Elardo},
  journal={Science},
  year={2013},
  volume={339},
  pages={780 - 785}
}
So Different and So Similar Most known meteorites from Mars fit into one class. Agee et al. (p. 780, published online 3 January; see the Perspective by Humayun) describe a meteorite, NWA 7034, which shares some characteristics with other martian meteorites but does not fit within the usual classification. NWA 7034 matches the composition of Mars' surface but is also richer in water than other martian meteorites, and has different oxygen isotope composition, which suggests the existence of… Expand
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TLDR
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References

SHOWING 1-10 OF 75 REFERENCES
Tissint Martian Meteorite: A Fresh Look at the Interior, Surface, and Atmosphere of Mars
TLDR
Tissint (Morocco) is the fifth martian meteorite collected after it was witnessed falling to Earth and shows that it is a depleted picritic shergottite similar to EETA79001A, suggesting that it was ejected from Mars during the same event. Expand
Silicate mineralogy of martian meteorites
Abstract Basalts and basaltic cumulates from Mars (delivered to Earth as meteorites) carry a record of the history of that planet – from accretion to initial differentiation and subsequent volcanism,… Expand
The SNC meteorites are from Mars
Abstract The 14 SNC meteorites are all igneous rocks, either basalts or basaltic cumulates. They are inferred to be from Mars, based on direct comparison with Martian materials and on consistency… Expand
Magmatic carbon in Martian meteorites: attempts to constrain the carbon cycle on Mars
One of the current goals of Martian exploration is to find evidence for extinct (or even extant) life. Carbon (an essential ingredient of life on Earth) is known to occur on Mars as CO2 in the… Expand
A review of meteorite evidence for the timing of magmatism and of surface or near-surface liquid water on Mars
[1] There is widespread photogeological evidence for ubiquitous water flowing on the surface of Mars. However, the age of surface and near-surface water cannot be deduced with high precision from… Expand
Elemental Composition of the Martian Crust
TLDR
Spacecraft data suggest that martian meteorites are not representative of older, more voluminous crust and prompt questions about their use in defining diagnostic geochemical characteristics and in constraining mantle compositional models for Mars. Expand
Constraints on the composition and petrogenesis of the Martian crust
[1] Spectral interpretation that silicic rocks are widespread on Mars implies that Earth's differentiated crust is not unique. Evaluation of observations bearing on the composition of the Martian… Expand
A petrogenetic model for the origin and compositional variation of the martian basaltic meteorites
The major element, trace element, and isotopic compositional ranges of the martian basaltic meteorite source regions have been modeled assuming that planetary differentiation resulted from… Expand
Hydrous magmatism on Mars: A source of water for the surface and subsurface during the Amazonian
Abstract There is an overwhelming amount of evidence supporting the past existence of abundant flowing water on the martian surface, however the source for this water is less understood. Estimates of… Expand
Linking the Chassigny meteorite and the Martian surface rock Backstay: Insights into igneous crustal differentiation processes on Mars
In order to use igneous surface lithologies to constrain Martian mantle characteristics, secondary processes that lead to compositional modification of primary mantle melts must be considered.… Expand
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