Pyroclastic activity at home plate in Gusev crater, Mars
January 1, 2007
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.
Citation Information
| Publication Year | 2007 |
|---|---|
| Title | Pyroclastic activity at home plate in Gusev crater, Mars |
| DOI | 10.1126/science.1139045 |
| Authors | 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, S. Ruff, M. Schmidt, C. Schroder, L. A. Soderblom, A. Yen |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Science |
| Index ID | 70029767 |
| Record Source | USGS Publications Warehouse |