Pyroclastic Activity at Home Plate in Gusev Crater, Mars

@article{Squyres2007PyroclasticAA,
  title={Pyroclastic Activity at Home Plate in Gusev Crater, Mars},
  author={Steven W. Squyres and Oded Aharonson and B. Clark and Barbara A. Cohen and Larry S. Crumpler and Paulo A. Jr. de Souza and William H. Farrand and Ralf Gellert and John A. Grant and John P. Grotzinger and Albert F. C. Haldemann and J R Johnson and G{\"o}star Klingelh{\"o}fer and Kevin W. Lewis and R. Li and Timothy J. Mccoy and Alfred S. McEwen and Harry Y. McSween and Doug W Ming and J. M. Moore and Richard V. Morris and Timothy J. Parker and James William Rice and Steven W. Ruff and M. E. Schmidt and Christian Schr{\"o}der and Laurence A. Soderblom and Albert S. Yen},
  journal={Science},
  year={2007},
  volume={316},
  pages={738 - 742}
}
Home Plate is a layered plateau in Gusev crater on Mars. It is composed of clastic rocks of moderately altered alkali basalt composition, enriched in some highly volatile elements. A coarsegrained lower unit lies under a finer-grained upper unit. Textural observations indicate that the lower strata were emplaced in an explosive event, and geochemical considerations favor an explosive volcanic origin over an impact origin. The lower unit likely represents accumulation of pyroclastic materials… Expand
Alteration mineralogy of Home Plate and Columbia Hills—Formation conditions in context to impact, volcanism, and fluvial activity
The Mars Exploration Rover Spirit investigated the igneous and alteration mineralogy and chemistry of Home Plate and its surrounding deposits. Here, we focus on using thermochemical modeling toExpand
Iron mineralogy and aqueous alteration from Husband Hill through Home Plate at Gusev Crater, Mars: Results from the Mössbauer instrument on the Spirit Mars Exploration Rover
[1] Spirit's Mossbauer (MB) instrument determined the Fe mineralogy and oxidation state of 71 rocks and 43 soils during its exploration of the Gusev plains and the Columbia Hills (West Spur, HusbandExpand
Geochemical properties of rocks and soils in Gusev Crater, Mars: Results of the Alpha Particle X-Ray Spectrometer from Cumberland Ridge to Home Plate
[1] Geochemical diversity of rocks and soils has been discovered by the Alpha Particle X-Ray Spectrometer (APXS) during Spirit's journey over Husband Hill and down into the Inner Basin from sol 470Expand
The Case for Ancient Hot Springs in Gusev Crater, Mars
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New and existing observations of the Home Plate region with observations from field and laboratory work demonstrate that a volcanic hydrothermal system manifesting both hot spring/geyser and fumarolic activity best explains the opaline silica rocks and proximal S-rich materials, respectively. Expand
’ s repository of research publications and other research outputs Alteration mineralogy of the Home Plate and Columbia Hills – formation conditions in context to impact , volcanism , and fluvial activity
The Mars Exploration Rover Spirit investigated the igneous and alteration mineralogy and chemistry of Home Plate and its surrounding deposits. Here, we focus on using thermochemical modeling toExpand
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TLDR
It is shown that the nodular and digitate silica structures at El Tatio that most closely resemble those on Mars include complex sedimentary structures produced by a combination of biotic and abiotic processes. Expand
Hydrothermal origin of halogens at Home Plate, Gusev Crater
[1] In the Inner Basin of the Columbia Hills, Gusev Crater is Home Plate, an 80 m platform of layered clastic rocks of the Barnhill class with microscopic and macroscopic textures, including a bombExpand
Chemical and mineralogical trends during acid‐sulfate alteration of pyroclastic basalt at Cerro Negro volcano and implications for early Mars
[1] Acid-sulfate alteration of pyroclastic basalts in active fumaroles at Cerro Negro volcano, Nicaragua, was studied as a means to infer the mineralogical and chemical consequences of basaltExpand
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Structure and stratigraphy of Home Plate from the Spirit Mars Exploration Rover
Home Plate is a layered plateau observed by the Mars Exploration Rover Spirit in the Columbia Hills of Gusev Crater. The structure is roughly 80 m in diameter, and the raised margin exposes aExpand
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