Fluid lava flows in Gusev crater, Mars
نویسندگان
چکیده
منابع مشابه
Sulfate deposition in subsurface regolith in Gusev crater, Mars
[1] Excavating into the shallow Martian subsurface has the potential to expose stratigraphic layers and mature regolith, which may hold a record of more ancient aqueous interactions than those expected under current Martian surface conditions. During the Spirit rover’s exploration of Gusev crater, rover wheels were used to dig three trenches into the subsurface regolith down to 6–11 cm depth: R...
متن کاملMars Pyroclastic Activity at Home Plate in Gusev Crater
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متن کاملPyroclastic activity at Home Plate in Gusev Crater, Mars.
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 o...
متن کاملThe Spirit Rover's Athena science investigation at Gusev Crater, Mars.
The Mars Exploration Rover Spirit and its Athena science payload have been used to investigate a landing site in Gusev crater. Gusev is hypothesized to be the site of a former lake, but no clear evidence for lacustrine sedimentation has been found to date. Instead, the dominant lithology is basalt, and the dominant geologic processes are impact events and eolian transport. Many rocks exhibit co...
متن کاملRheology of Lava Flows on Elysium Mons, Mars
Introduction: It is known from previous studies that in principle, the dimensions of lava flows reflect rheologic properties such as yield strength, effusion rates and viscosity [1-17]. In a previous study, we reported on such derived rheologic properties of lava flows on Arsia Mons, Pavonis Mons, and Ascraeus Mons, which are located on the extensive Tharsis bulge [1,2]. Here, we expand on our ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2005
ISSN: 0148-0227
DOI: 10.1029/2005je002401