The Orbital Search for Altered Materials on Mars

Autor:	Harry Y. McSween, Michael B. Wyatt
Rok vydání:	2006
Předmět:	Igneous rock Geochemistry and Petrology Martian surface Earth science Earth and Planetary Sciences (miscellaneous) Geochemistry Mars Exploration Program Snow Geology Basaltic rock Latitude
Zdroj:	Elements. 2:145-150
ISSN:	1811-5217 1811-5209
DOI:	10.2113/gselements.2.3.145
Popis:	The Martian surface is dominated by primary igneous minerals common in basaltic rocks. Limited chemical alteration exists in fine-grained dust, and is likely in sands and rocks at high latitudes and in the northern lowland plains where materials have interacted with ice and snow. Evidence for extensive production of secondary phases is revealed at higher spatial resolutions, where alteration effects of unique, and perhaps time-limited, aqueous environments are observed. The distribution of ice on Mars thus appears to have a global influence on the production of alteration materials, whereas the effects of water are discovered in unique and locally diverse geological settings.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::32f9a4d527ae82645d4f51ba4d8b06d5 https://doi.org/10.2113/gselements.2.3.145 Zobrazit plný text záznamu