Mathematics – Logic
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p31b1707t&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #P31B-1707
Mathematics
Logic
[5480] Planetary Sciences: Solid Surface Planets / Volcanism, [6225] Planetary Sciences: Solar System Objects / Mars
Scientific paper
Many landforms and morphological features thought to have resulted from magma-cryosphere interactions have been identified on Mars. However, few experimental studies have been conducted to investigate the physical and thermal changes that should occur in the subsurface during these interactions. This project aims to begin to address this by conducting a series of laboratory analogue experiments. We introduce a heat source into a block of analogue cryosphere material (a carefully-prepared mixture of solid grains and ice) and record the thermal development within the block using thermocouples. We use these measurements to interpret the physical activity within the block, such as when and where phase changes occur, what sequence of shapes the developing melt region takes, and the extent of convection of any fluid phase H20. Blocks are also dissected after each run and documented photographically to record any physical movement of grains. Results will be used to constrain variables within a heat flow model that we are developing. This model will then be applied to the interpretation of landforms on Mars to help determine what set of processes could have realistically occurred during their formation. A second series of experiments will investigate surface morphological changes on the cryosphere analogue blocks. Resultant morphologies will be recorded and compared with existing martian landforms to again provide insight into formation processes.
Airey M. W.
Gilbert Jennie S.
Lane Stephen J.
Tyson Shelly
Wilson Leslie
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