Pyroclastic activity at home plate in Gusev crater, Mars
Science
By: S. W. Squyres, O. Aharonson, B. C. Clark, B. A. Cohen, L. Crumpler, P.A. de Souza, W. H. Farrand, Ralf Gellert, J. Grant, J.P. Grotzinger, A. F. C. Haldemann, J. R. Johnson, G. Klingelhofer, K.W. Lewis, R. Li, T. McCoy, A. S. McEwen, H.Y. McSween, D. W. Ming, Johnnie N. Moore, R.V. Morris, T. J. Parker, J. W. Rice Jr., S. Ruff, M. Schmidt, C. Schroder, L.A. Soderblom, and A. Yen
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Abstract
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 coarse-grained 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, whereas the upper unit may represent eolian reworking of the same pyroclastic materials.
Suggested Citation
Squyres, S.W., Aharonson, O., Clark, B.C., Cohen, B.A., Crumpler, L., de Souza, P., Farrand, W.H., Gellert, R., Grant, J., Grotzinger, J., Haldemann, A.F., Johnson, J.R., Klingelhofer, G., Lewis, K., Li, R., McCoy, T., McEwen, A.S., McSween, H., Ming, D.W., Moore, J.N., Morris, R., Parker, T.J., Rice, J.W., Ruff, S., Schmidt, M., Schroder, C., Soderblom, L., and Yen, A., 2007, Pyroclastic activity at home plate in Gusev crater, Mars: Science, v. 316, no. 5825, p. 738-742, https://doi.org/10.1126/science.1139045.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Pyroclastic activity at home plate in Gusev crater, Mars |
| Series title | Science |
| DOI | 10.1126/science.1139045 |
| Volume | 316 |
| Issue | 5825 |
| Year Published | 2007 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Science |
| First page | 738 |
| Last page | 742 |